Increasing behavioural evidence suggests that expert video game players (VGPs) show enhanced visual attention and visuospatial abilities, but what underlies these enhancements remains unclear. We administered the Poffenberger paradigm with concurrent electroencephalogram (EEG) recording to assess occipital N1 latencies and interhemispheric transfer time (IHTT) in expert VGPs. Participants comprised 15 right-handed male expert VGPs and 16 non-VGP controls matched for age, handedness, IQ and years of education. Expert VGPs began playing before age 10, had a minimum 8 years experience, and (...) maintained playtime of at least 20 hours per week over the last 6 months. Non-VGPs had little-to-no game play experience (maximum 1.5 years). Participants responded to checkerboard stimuli presented to the left and right visual fields while 128-channel EEG was recorded. Expert VGPs responded significantly more quickly than non-VGPs. Expert VGPs also had significantly earlier occipital N1s in direct visual pathways (the hemisphere contralateral to the visual field in which the stimulus was presented). IHTT was calculated by comparing the latencies of occipital N1 components between hemispheres. No significant between-group differences in electrophysiological estimates of IHTT were found. Shorter N1 latencies may enable expert VGPs to discriminate attended visual stimuli significantly earlier than non-VGPs and contribute to faster responding in visual tasks. As successful video-game play requires precise, time pressured, bimanual motor movements in response to complex visual stimuli, which in this sample began during early childhood, these differences may reflect the experience and training involved during the development of video-game expertise, but training studies are needed to test this prediction. (shrink)

A controversial claim in recent dual process accounts of reasoning is that intuitive processes not only lead to bias but are also sensitive to the logical status of an argument. The intuitive logic hypothesis draws upon evidence that reasoners take longer and are less confident on belief–logic conflict problems, irrespective of whether they give the correct logical response. In this paper, we examine conflict detection under conditions in which participants are asked to either judge the logical validity or believability of (...) a presented conclusion, accompanied by measures of eye movement and pupil dilation. The findings show an effect of conflict, under both types of instruction, on accuracy, latency, gaze shifts, and pupil dilation. Importantly, these effects extend to conflict trials in which participants give a belief‐based response (incorrectly under logic instructions or correctly under belief instructions) demonstrating both behavioral and physiological evidence in support of the logical intuition hypothesis. (shrink)

A definition of virtual or virtuality is not an easy task. Both words are of recent application in Philosophy, even if the concept of virtual comes from a respectable Latin tradition. Today’s meaning brings together the notions of potentiality, latency, imaginary representations, VR, and the forms of communication in digital media. This contagious, and spontaneous synonymy fails to identify a common vein and erases memory as a central notion. In the present essay, I’ll try to explain essential features of (...) the concept of virtual, taking the investigation of memory troubles in Pierre Janet’s work as an exemplification. Pierre Janet’s work represents a rare combination of medical observation and description of symptoms of mental illnesses, therapeutic guidance in hypnosis and philosophical writing about the main psychological themes of an epoch in transition from a Metaphysics of the Soul to the modern Experimental Psychology. Pierre Janet’s intellectual evolution since the 1880s until the end of his life is dominated by the philosophical project of a theory of the psychic system supported by three basic pillars: a concept of personality, a theory of memory and a sketch of a general theory of conduct. Such complex endeavour cannot be abstracted from the initial connections with Jean-Martin Charcot’s school at La Salpêtrière which meant a turning point in the tradition of the “animal magnetism” concerning the treatment of epileptic-hysterical symptoms along with the contributions of Hyppolite Bernheim’s “Nancy School” of hypnotism. J.-M. Charcot’s or H. Bernheim’s theorising about the organic and psychological aspects of the hypnotic treatment of the hysterical symptoms was already aware of the difficulty in dealing with the extent of the dissimulation of the patients regarding the symptoms of the illness, under hypnotic suggestion, even if Charcot insisted in the identification and cataloguing of the organic expressions, such as contractures or the posture of the body in arc during the attacks. The precise location of the “great hysteria” in the organic-psychic corridor was itself a riddle. If a symptom is a special type of sign, in the case of the “great hysteria” nobody knew for sure what it stood for. The clinical symptom of the attack stood for an organic trouble with cerebral causes, a psychological interruption of the normal sensorial and muscular movements or a disguise of the female desire? Pierre Janet described many hysterical patients, somnambulism and multiple personality since his articles in La Revue Philosophique de la France et l’ Étranger, a Journal founded by the philosopher, experimental psychologist and his intellectual predecessor Théodule-Armand Ribot. The description of the case of the “great hysterical” Lucie, treated by him, is an example of a theoretical hypothesising on multiple personality and discontinuity of memories fragments. There are more cases revealing the same relation between hysteria, somnambulism, personality dissociation and “alternating memory”. Decisively inspired by and corroborating P. Janet’s ideas, S. Freud conceived also the essential of the hysterical sicknesses as disorders of memory. The theme of memory came even more to the foreground in the dissertation L’Automatisme Psychologique. Here, the strange world of somnambulism was scrutinised along with hysterical contractures and convulsions, anaesthesia, the compulsion to repetition, obsessions, “automatic writing” in hysterical patients, multiple personality and “alternating memories”. In the depicted cases memory could not be taken as a homogenous series of remembrances or as a stock of disposable information but as a variable of the depth of the personalities’ inner formation. The so-called “seconde existence” of some somnambulists referred not only unconscious representations and unconscious thoughts but complete or inceptive latent personalities provided with multiple virtual existences and multiple memories. Hypnosis was the privileged technique to access to such multiple memories ignored by the official personality. Later and after the writing of his M.D. Dissertation, Contribution à l’ Étude des Accidents Mentaux chez les Hystériques, P. Janet addressed again the themes of memory and alternating memories in a series of lectures at the Collège de France but now according to the larger framework of a general theory of conduct which included a description of the social actions participating in the narrative construction of personal memories, and the role of social memory. (shrink)

We investigated the coupling between a speaker's and a listener's eye movements. Some participants talked extemporaneously about a television show whose cast members they were viewing on a screen in front of them. Later, other participants listened to these monologues while viewing the same screen. Eye movements were recorded for all speakers and listeners. According to cross‐recurrence analysis, a listener's eye movements most closely matched a speaker's eye movements at a delay of 2 sec. Indeed, the more closely a listener's (...) eye movements were coupled with a speaker's, the better the listener did on a comprehension test. In a second experiment, low‐level visual cues were used to manipulate the listeners' eye movements, and these, in turn, influenced their latencies to comprehension questions. Just as eye movements reflect the mental state of an individual, the coupling between a speaker's and a listener's eye movements reflects the success of their communication. (shrink)

In Parkinson’s disease, the fronto-striatal network is involved in motor and cognitive symptoms. Working memory updating training engages this network in healthy populations, as observed by improved cognitive performance and increased striatal BOLD signal. This two-part study aimed to assess the feasibility of WM updating training in PD and measure change in cognition, movement and functional brain response in one individual with PD after WM updating training. A feasibility and single-subject study were performed in which patients with PD completed (...) computerized WM updating training. The outcome measures were the pre-post changes in criterion and transfer cognitive tests; cognitive complaints; psychological health; movement kinematics; and task-related BOLD signal. Participants in the feasibility study showed improvements on the criterion tests at post-test. FL displayed the largest improvements on the criterion tests and smaller improvements on transfer tests. Furthermore, FL reported improved cognitive performance in everyday life. A shorter onset latency and smoother upper-limb goal-directed movements were measured at post-test, as well as increased activation within the striatum and decreased activation throughout the fronto-parietal WM network. This two-part study demonstrated that WM updating training is feasible to complete for PD patients and that change occurred in FL at post-test in the domains of cognition, movement and functional brain response. (shrink)

We recently demonstrated, by means of short latency afferent inhibition (SAI), that before an imagined movement, during the reaction time (RT), SAI decreases only in the movement-related muscle (sensorimotor modulation) and that a correlation exists between sensorimotor modulation and motor imagery (MI) ability. Excitatory anodal transcranial direct current stimulation (a-tDCS) on M1 could enhance the MI outcome; however, mechanisms of action are not completely known. Here, we assessed if a-tDCS on M1 prior to an MI task could (...) affect sensorimotor modulation. Participants imagined abducting the index or little finger in response to an acoustic signal. SAI was evaluated from the first dorsal interosseus after the “go” signal, before the expected electromyographic (EMG) activity. Participants received 20-min 1.5 mA a-tDCS or sham-tDCS on M1 on two different days, in random order. Results showed that a-tDCS on M1 increases the sensorimotor modulation consisting of a weakening of SAI after the Go signal with respect to sham-tDCS, in the movement-related muscle right before the beginning of MI. These results suggest that a-tDCS on M1 further potentiate those circuits responsible for sensorimotor modulation in the RT phase of MI. Increased sensorimotor modulation during MI may be one of the mechanisms involved in MI improvement after a-tDCS over M1. (shrink)

Synchronized movements with external periodic rhythms, such as dancing to a beat, are commonly observed in daily life. Although it has been well established that some vocal learning species (including parrots and humans) spontaneously develop this ability, it has only recently been shown that monkeys are also capable of predictive and tempo-flexible synchronization to periodic stimuli. In our previous study, monkeys were trained to make predictive saccades for alternately presented visual stimuli at fixed stimulus onset asynchronies (SOAs) to obtain a (...) liquid reward. The monkeys generalized predictive synchronization to novel SOAs in the middle of trained range, suggesting a capacity for tempo-flexible synchronization. However, it is possible that when encountering a novel tempo, the monkeys might sample learned saccade sequences from those for the short and long SOAs so that the mean saccade interval matched the untrained SOA. To eliminate this possibility, in the current study we tested monkeys on novel SOAs outside the trained range. Animals were trained to generate synchronized eye movements for 600 and 900-ms SOAs for a few weeks, and then were tested for longer SOAs. The accuracy and precision of predictive saccades for one untrained SOA (1200 ms) were comparable to those for the trained conditions. On the other hand, the variance of predictive saccade latency and the proportion of reactive saccades increased significantly in the longer SOA conditions (1800 and 2400 ms), indicating that temporal prediction of periodic stimuli was difficult in this range, similar to previous results on synchronized tapping in humans. Our results suggest that monkeys might share similar synchronization mechanisms with humans, which can be subject to physiological examination in future studies. (shrink)

Dual task is known to affect postural stabilty in children. We explored the effect of visual tasks on postural control in dyslexic and in age-matched non-dyslexic children. Thirty dyslexic children (mean age: 9.80 ± 0.28 years) were compared with thirty non-dyslexic children (mean age: 9.92 ± 0.35 years). All children underwent ophthalmologic and optometric evaluation. Eye movements were recorded by a video-oculography system (EyeBrain ® T2) and postural sway was recorded simultaneously by a force platform (TechnoConept®). Both groups of children (...) performed fixations, pursuits, pro- and anti-saccades tasks. Dyslexic children showed significantly poor near fusional vergence ranges (convergence and divergence) with respect to the non-dyslexic children. During the postural task, quality of fixation and anti-saccade performance in dyslexic children were significantly worse compared to non-dyslexic children. In contrast, the number of catch-up saccades during pursuits and the latency of pro-and anti-saccades were similar in both groups of children examined. Concerning postural quality, dyslexic children were more unstable than age-matched non-dyslexic children. For both groups of children tested we also observed that executing saccades (pro- and anti-saccades) reduced postural values significantly in comparison with fixation and pursuit tasks. The impairment in convergence and divergence fusional capabilities could be due to an immaturity in cortical structures controlling the vergence system. The poor oculomotor performance reported in dyslexic children suggested a deficit in allocating visual attention and their postural instability observed is in line with the cerebellar impairment previously reported in dyslexic children. Finally, pro- or anti-saccades reduce postural values compared to fixation and pursuit tasks in both groups of children tested, suggesting a different influence of visual tasks on postural control according to their attentional demand. (shrink)

Eye-tracking is increasingly studied as a cognitive and biological marker for the early signs of neuropsychological and psychiatric disorders. However, in order to make further progress, a more comprehensive understanding of the age-related effects on eye-tracking is essential. The antisaccade task requires participants to make saccadic eye movements away from a prepotent stimulus. Speculation on the cause of the observed age-related differences in the antisaccade task largely centers around two sources of cognitive dysfunction: inhibitory control (IC) and working memory (WM). (...) The IC account views cognitive slowing and task errors as a direct result of the decline of inhibitory cognitive mechanisms. An alternative theory considers that a deterioration of WM is the cause of these age-related effects on behavior. The current study assessed IC and WM processes underpinning saccadic eye movements in young and older participants. This was achieved with three experimental conditions that systematically varied the extent to which WM and IC were taxed in the antisaccade task: a memory-guided task was used to explore the effect of increasing the WM load; a Go/No-Go task was used to explore the effect of increasing the inhibitory load; a ‘standard’ antisaccade task retained the standard WM and inhibitory loads. Saccadic eye movements were also examined in a control condition: the standard prosaccade task where the load of WM and IC were minimal or absent. Saccade latencies, error rates and the spatial accuracy of saccades of older participants were compared to the same measures in healthy young controls across the conditions. The results revealed that aging is associated with changes in both IC and WM. Increasing the inhibitory load was associated with increased reaction times in the older group, while the increased WM load and the inhibitory load contributed to an increase in the antisaccade errors. These results reveal that aging is associated with changes in both IC and WM. (shrink)

Previous studies have shown that the human visual system can detect a face and elicit a saccadic eye movement toward it very efficiently compared to other categories of visual stimuli. In the first experiment, we tested the influence of facial expressions on fast face detection using a saccadic choice task. Face‐vehicle pairs were simultaneously presented and participants were asked to saccade toward the target (the face or the vehicle). We observed that saccades toward faces were initiated faster, and more (...) often in the correct direction, than saccades toward vehicles, regardless of the facial expressions (happy, fearful, or neutral). We also observed that saccade endpoints on face images were lower when the face was happy and higher when it was neutral. In the second experiment, we explicitly tested the detection of facial expressions. We used a saccadic choice task with emotional‐neutral pairs of faces and participants were asked to saccade toward the emotional (happy or fearful) or the neutral face. Participants were faster when they were asked to saccade toward the emotional face. They also made fewer errors, especially when the emotional face was happy. Using computational modeling, we showed that this happy face advantage can, at least partly, be explained by perceptual factors. Also, saccade endpoints were lower when the target was happy than when it was fearful. Overall, we suggest that there is no automatic prioritization of emotional faces, at least for saccades with short latencies, but that salient local face features can automatically attract attention. (shrink)

Contents INTRODUCTION: PHENOMENOLOGICAL APPROACHES TO THE POLITICAL IN PATOČKA AND MERLEAU-PONTY 11 1. Memory and community 11 2. Patočka 18 3. Merleau-Ponty, Husserl and institution 22 4. The political context 28 5. Status of the current research 32 6. Overview of the chapters 34 CHAPTER 1: THE PHENOMENOLOGICAL EPOCHĒ AND THE POLITICAL 39 1. Introduction 39 2. Criticism of Husserl’s notion of the lifeworld 46 3. The a priori of the World 49 4. The subject and the epochē 56 5. (...) Epochē to polis 61 6. Two ways into the epochē: myth and “le bouc émissaire” 76 7. A “public/private” distinction in the performing of the epochē 84 CHAPTER 2: THE BODY AT THE FRONT: CORPOREITY AND COMMUNITY IN JAN PATOČKA’S HERETICAL ESSAYS IN THE PHILOSOPHY OF HISTORY. 89 1. Introduction 89 2. The front 94 3. The double determination of life: Patočka and Foucault on “war” 98 4. Rooting 126 5. The body at the front 135 CHAPTER 3: LOOKING-IN ON EUROPE 145 1. Introduction 145 2. Post-Europe 147 3. Globalization as shaking 157 4. The idea of culture 162 5. Looking-in on Europe 164 6. The borders of Europe: towards a post-European democracy 175 a. Polemos and boundary 175 b. The skin and the soul 178 c. Europe and the boundary 190 CHAPTER 4: HUSSERL ON STIFTUNG AND STYLE 201 1. Introduction 201 2. Husserl’s concepts of retention institution and the possibility of an “institutional unconscious” 202 a. Retention 202 b. Husserl’s notion of institution in §50 of the Cartesian Meditations 210 c. Difficulties 220 d. Retention as unconscious 221 3. Husserl´s concept of style in Ideas II 236 a. Introduction 236 b. Institution and style 237 c. Style 243 d. Style and intersubjectivity 248 e. Style and politics in Merleau-Ponty 254 4. §15 of the Crisis of the European Sciences and Transcendental Phenomenology: “Reflection on the method of our historical manner of investigation” 259 a. Stiftung as the task of history 259 b. Endstiftung 269 c. Endstiftung and Style 272 5. Community and surrounding world in section three of Ideas II 274 6. “The Origin of Geometry” 291 CHAPTER 5: STIFTUNG AND STYLE IN MERLEAU-PONTY 303 1. Introduction 303 2. Institution and Style 304 a. event/advent 304 b. The opening of a field 308 c. The relation to the past, or subterranean communication across time: Urstiftung—Nachstiftung—Endstiftung 310 d. Style 312 e. Latency 314 3. Three painters: Matisse, Cézanne, and Vermeer 319 a. Matisse 319 b. Cézanne 325 c. Vermeer 337 4. The historical field 344 a. The field of praxis 344 b. Symbolic matrices 355 c. Matrix institutions 361 CHAPTER 6: THE NOBLE MEMORY: SURVIVAL, DEMOCRACY AND RESISTANCE 371 1. Introduction 371 a. “Resistance” and “survival” 371 b. The plaque 372 c. “Inertia” and “movement” 378 d. Difficulties 383 e. Vulnerability 385 2. Institution and parliamentary democracy 391 a. Merleau-Ponty’s support for parliamentary democracy 391 b. An institution of institutions 396 c. “Regime” and “corps de l’État” 400 d. Survival 406 e. Institution and reparation 421 f. Institution and revolution 423 g. Democracy, epochē, and virtù 424 h. Concrete political action 429 3. Resistance 430 a. The “mythical” past and the “verbal-Wesen of society” 432 b. The generality of freedom and the unconscious 441 c. Endstiftung, Telos and Truth 442 CONCLUSIONS 451 BIBLIOGRAPHY 471. (shrink)

A wide range of countries decided to go into lockdown to contain the coronavirus disease (COVID-19) pandemic of 2020, a setting separating people and restricting their movements. We investigated how musicians dealt with this sudden restriction in mobility. Responses of 234 people were collected. The majority of respondents (95%) resided in Belgium or the Netherlands. Results indicated a decrease of 79% of live music making in social settings during lockdown compared with before lockdown. In contrast, an increase of 264% was (...) demonstrated for online joint music making. However, results showed that most respondents were largely or even completely unaccustomed with specialized platforms for online joint music making (e.g., JamKazam, Jamulus). Respondents reported to mostly use well-known video-conferencing platforms such as Zoom and Skype when playing together virtually. However, when such video-conferencing platforms were used, they were often not employed for synchronized playing and were generally reported to insufficiently deal with latency issues. Furthermore, respondents depending on music making as their main source of income explored online real-time methods significantly more than those relying on other income sources. Results also demonstrated an increase of 93% in the use of alternative remote joint music-making methods (e.g., recording parts separately and subsequently circulating these digital recordings). All in all, results of this study provide a more in-depth view on joint music making during the first weeks of lockdown induced by the COVID-19 pandemic of 2020, and demonstrate users’ perceptions of performance and usability of online real-time platforms as well as alternative methods for musical interaction. (shrink)

An extended examination of Libet's works led to a comprehensive reinterpretation of his results. According to this reinterpretation, the Minimum Train Duration of electrical brain stimulation should be considered as the time needed to create a brain stimulus efficient for producing conscious sensation and not as a basis for inferring the latency for conscious sensation of peripheral origin. Latency for conscious sensation with brain stimulation may occurafterthe Minimum Train Duration. Backward masking with cortical stimuli suggests a 125-300 ms (...) minimum value for the latency for conscious sensation of threshold skin stimuli. Backward enhancement is not suitable for inferring this latency. For determining temporal relations between stimuli that correspond to subjects' reports, theendof cerebral Minimum Train Duration should be used as reference, rather than its onset. Results of coupling peripheral and cortical stimuli are explained by a latency after the cortical Minimum Train Duration, having roughly the same duration as the latency for supraliminal skin stimuli. Results of coupling peripheral stimuli and stimuli to medial lemniscus (LM) are explained by a shorter LM latency and/or a longer peripheral latency. This interpretation suggests a 230 ms minimum value for the latency for conscious sensation of somatosensory near-threshold stimuli. The backward referral hypothesis, as formulated by Libet, should not be retained. Long readiness potentials preceding spontaneous conscious or nonconscious movements suggest that both kinds of movement are nonconsciously initiated. The validity of Libet's measures of W and M moments (Libet et al., 1983a) is questionable due to problems involving latencies, training, and introspective distinction of W and M. Veto of intended actions may be initially nonconscious but dependent on conscious awareness. (shrink)

The parameters governing our behavior are in constant flux. Accurately capturing these dynamics in cognitive models poses a challenge to modelers. Here, we demonstrate a mapping of ACT-R's declarative memory onto the linear ballistic accumulator (LBA), a mathematical model describing a competition between evidence accumulation processes. We show that this mapping provides a method for inferring individual ACT-R parameters without requiring the modeler to build and fit an entire ACT-R model. Existing parameter estimation methods for the LBA can be used, (...) instead of the computationally expensive parameter sweeps that are traditionally done. We conduct a parameter recovery study to confirm that the LBA can recover ACT-R parameters from simulated data. Then, as a proof of concept, we use the LBA to estimate ACT-R parameters from an empirical dataset. The resulting parameter estimates provide a cognitively meaningful explanation for observed differences in behavior over time and between individuals. In addition, we find that the mapping between ACT-R and LBA lends a more concrete interpretation to ACT-R's latency factor parameter, namely as a measure of response caution. This work contributes to a growing movement towards integrating formal modeling approaches in cognitive science. (shrink)

Our brains readily decode facial movements and changes in social attention, reflected in earlier and larger N170 event-related potentials (ERPs) to viewing gaze aversions vs. direct gaze in real faces (Puce et al. 2000). In contrast, gaze aversions in line-drawn faces do not produce these N170 differences (Rossi et al., 2014), suggesting that physical stimulus properties or experimental context may drive these effects. Here we investigated the role of stimulus-induced context on neurophysiological responses to dynamic gaze. Sixteen healthy adults viewed (...) line-drawn and real faces, with dynamic eye aversion and direct gaze transitions, and control stimuli (scrambled arrays and checkerboards) while continuous electroencephalographic (EEG) activity was recorded. EEG data from 2 temporo-occipital clusters of 9 electrodes in each hemisphere where N170 activity is known to be maximal were selected for analysis. N170 peak amplitude and latency, and temporal dynamics from event-related spectral perturbations (ERSPs) were measured in 16 healthy subjects. Real faces generated larger N170s for averted vs. direct gaze motion, however, N170s to real and direct gaze were as large as those to respective controls. N170 amplitude did not differ across line-drawn gaze changes. Overall, bilateral mean gamma power changes for faces relative to control stimuli occurred between 150-350 ms, potentially reflecting signal detection of facial motion. Our data indicate that experimental context does not drive N170 differences to viewed gaze changes. Low-level stimulus properties, such as the high sclera/iris contrast change in real eyes likely drive the N170 changes to viewed aversive movements. (shrink)

This article describes the path‐mapping theory of how humans integrate analogical mapping and general problem solving. The theory posits that humans represent analogs with declarative roles, map analogs by lower‐level retrieval of analogous role paths, and coordinate mappings with higher‐level organizational knowledge. Implemented in the ACT‐R cognitive architecture, the path‐mapping theory enables models of analogical mapping behavior to incorporate and interface with other problem‐solving knowledge. Path‐mapping models thus can include task‐specific skills such as encoding analogs or generating responses, and can (...) make behavioral predictions at the level of real‐world metrics such as latency or correctness. We show that the path‐mapping theory can successfully account for the major phenomena addressed by previous theories of analogy. We also describe a path‐mapping model that can account for subjects' incremental eye‐movement and typing behavior in a story‐mapping task. We discuss extensions and implications of this work to other areas of analogy and problem‐solving research. (shrink)

This article discusses Abū Isḥāq al-Naẓẓām’s (d. 231/845) (one of the first Muʽtazilī thinkers); understanding of Allah-world relationship, his theory of nature (tab‘) and his view on miracles. In a proposal form, Muʽtazilī scholars accept that the miracle, which is the actual confirmation, must occur, since it is not possible for Allah to confirm His messenger (prophet) in a way that everyone can hear and in a direct word. Since the Prophet's message can be authenticated only by a miracle, Muʽtazilī (...) thinkers paid great attention to this issue, organized and formed natural theories about the universe in a way that miracles can occur. Naẓẓām explains a kind of miracle that occurs under the power of Allah, by his theory of nature called latency and occurrence (kumūn-ẓuhūr). His view of miracles is rooted in the Muʽtazilī classification of miracles. Naẓẓām argues that in the theory of nature, things are infinitely divided. He also argues that all qualities considered accident (aʽrāḍ) by other Muslim theologians are different objects as only motion and rest are the only accidents. According to him, the universe consists of objects and accidents of motion only. In each object in the universe, an unlimited number of opposing objects (sub-components) that have different effects on each other is located in the same space. Those objects in the same space are intervened (tadākhul) with each other. Kumūn refers to sub-components that are located inside the object in a state of passing into each other, and a state of balancing each other through the push-pull motion (i‘timād). Ẓuhūr is an outward movement of the sub-component from where it is located when an impact imposed outside the object interacts with one of the sub-components contained in it. Naẓẓām says that too many opposing sub-components, such as heaviness-lightness, heat-coldness contained in the object, form an internal dynamic by providing balancing each other through inside the object with the push-pull motion. The state of balance inside the object is disrupted by an external factor affecting one of the sub-components. An external thing approaching the object interacts with one of the sub-components contained in the object. Then, the affected sub-component moves out of the object and thus the state of balance inside the object is disrupted. According to the theory of kumūn-ẓuhūr, change in objects occurs when the balance within the object is disturbed. The change in the balance also occurs not by the direct intervention of Allah and the creation of accidents, but by the disruption in the balance of natures within the object. Naẓẓām, who advocates the intrinsic natures in things, has been criticized for not leaving any room for Allah’s influence on objects at least through miracles. This criticism is not correct. Naẓẓām says that the nature of objects depends on God, and it is possible for God to intervene in them at any time. According to him, Allah can force opposing objects into a union that is not in their natures. In their natures, unification can separate those by applying pull and push. In this way, Naẓẓām sees the intervention of Allah as possible in the occurrence of a situation that is the opposite of what is present in the nature of objects. In Naẓẓām's theory of kumūn-ẓuhūr, there are suppressed natures and sub-components that are in a weak state inside the actual object. Furthermore, they cannot go out in any way from the actual object. One of these suppressed natures found in the object is removed from the nature of the object by the intervention of Allah when a miracle occurs in the hands of theProphet. In this case, the miracle is not something new that Allah has created, but that Allah has disclosed a hidden sub-component that is hidden in that thing that has never appeared before. Naẓẓām’s view of miracle is something occurring under the power of the created, which Muʽtazilī scholars accept in the classification of miracles in relation to, the theory of sarfa. He suggests that the Qur'an, which he accepts under the power of the created, would not be a miracle, if the Arabs could dispute it. However, according to him, the Qur'an is a miracle because Allah prevents them from the dispute. In his understanding of sarfa, the miracles occur directly as an act of God’s divine intervention with human beings. This study investigates Naẓẓām’s view of miracles along with his theory of nature and his understanding of sarfa. (shrink)

Previous research with speech and non-speech stimuli suggested that in audiovisual perception, visual information starting prior to the onset of corresponding sound can provide visual cues, and form a prediction about the upcoming auditory sound. This prediction leads to audiovisual interaction. Auditory and visual perception interact and induce suppression and speeding up of the early auditory event-related potentials such as N1 and P2. To investigate AV interaction, previous research examined N1 and P2 amplitudes and latencies in response to audio only, (...) video only, audiovisual, and control stimuli, and compared AV with auditory perception based on four AV interaction models. The current study addresses how different models of AV interaction express N1 and P2 suppression in music perception. Furthermore, the current study took one step further and examined whether previous musical experience, which can potentially lead to higher N1 and P2 amplitudes in auditory perception, influenced AV interaction in different models. Musicians and non-musicians were presented the recordings of a keyboard /C4/ key being played, as well as CO stimuli. Results showed that AV interaction models differ in their expression of N1 and P2 amplitude and latency suppression. The calculation of model and has consequences for the resulting N1 and P2 difference waves. Furthermore, while musicians, compared to non-musicians, showed higher N1 amplitude in auditory perception, suppression of amplitudes and latencies for N1 and P2 was similar for the two groups across the AV models. Collectively, these results suggest that when visual cues from finger and hand movements predict the upcoming sound in AV music perception, suppression of early ERPs is similar for musicians and non-musicians. Notably, the calculation differences across models do not lead to the same pattern of results for N1 and P2, demonstrating that the four models are not interchangeable and are not directly comparable. (shrink)

The aim of the present study was to investigate how saccadic selection relates to people’s awareness of the saliency and identity of a saccade goal. Observers were instructed to make an eye movement to either the most salient line segment or the only right-tilted element in a visual search display. The display was masked contingent on the first eye movement and after each trial observers indicated whether or not they had correctly selected the target. Whereas people’s awareness concerning (...) the saliency of the saccade goal was generally low, their awareness concerning the identity was high. Observers’ awareness of the saccade goal was not related to saccadic performance. Whereas saccadic selection consistently varied as a function of saccade latency, people’s awareness concerning the saliency or identity of the saccade goal did not. The results suggest that saccadic selection is primarily driven by subconscious processes. (shrink)

We can understand viewed scenes and extract task-relevant information within a few hundred milliseconds. This process is generally supported by three cortical regions that show selectivity for scene images: parahippocampal place area (PPA), medial place area (MPA) and occipital place area (OPA). Prior studies have focused on the visual information each region is responsive to, usually within the context of recognition or navigation. Here, we move beyond these tasks to investigate gaze allocation during scene viewing. Eye movements rely on a (...) scene’s visual representation to direct saccades, and thus foveal vision. In particular, we focus on the contribution of OPA, which is i) located in occipito-parietal cortex, likely feeding information into parts of the dorsal pathway critical for eye movements, and ii) contains strong retinotopic representations of the contralateral visual field. Participants viewed scene images for 1034 ms while their eye movements were recorded. On half of the trials, a 500 ms train of five transcranial magnetic stimulation (TMS) pulses was applied to the participant’s cortex, starting at scene onset. TMS was applied to the right hemisphere over either OPA or the occipital face area (OFA), which also exhibits a contralateral visual field bias but shows selectivity for face stimuli. Participants generally made an overall left-to-right, top-to-bottom pattern of eye movements across all conditions. When TMS was applied to OPA, there was an increased saccade latency for eye movements toward the contralateral relative to the ipsilateral visual field after the final TMS pulse (400ms). Additionally, TMS to the OPA biased fixation positions away from the contralateral side of the scene compared to the control condition, while the OFA group showed no such effect. There was no effect on horizontal saccade amplitudes. These combined results suggest that OPA might serve to represent local scene information that can then be utilized by visuomotor control networks to guide gaze allocation in natural scenes. (shrink)

Evidence for motion extrapolation at motion offset is scarce. In contrast, there is abundant evidence that subjects mentally extrapolate the future trajectory of weak motion signals at motion offset. Further, pointing movements overshoot at motion offset. We believe that mental and sensorimotor extrapolation is sufficient to solve the problem of perceptual latencies. Both present the advantage of being much more flexible than motion extrapolation.

Dialectics is the logic of estrangement. Self-relating negativity, which is at once every difference and its overcoming, is the pulse of dialectics. But what is this self-estranging sameness? For Hegel, the idealist, it is “the absolute concept.” It is more difficult to say what it is for Marx, who is supposed to be a materialist. If Marx were merely relocating self-estranging sameness from the concept to human “genus-being” (Gattungswesen), understood as a historically variable “ensemble of social relations,” this ensemble would (...) harbour a potentiality to become that is at once enabled and disabled by the social divisions of labour and class that they have generated. This interpretation is vitiated by an ambiguity in its invocation of potentiality. If we flatten human genus-being onto historically variable social relations, there is no latency left in it which could be said to be unactualized by existing social practices. But if some aspect of genus-being is held in reserve as an unactualized potential, we risk re-substantializing it as an a-historical essence. It is this ambiguity that leads Marx’s critics to accuse him of invoking a transcendent conception of human essence despite his insistence that this essence is a function of historically variable social relations. I want to parry this criticism by suggesting that Marx’s materialism requires Hegel’s self-estranging sameness in order to dissolve the apparent dichotomy between immanence and transcendence in the potency ascribed to practice. Estrangement and de-estrangement, compulsion and freedom, are not separable moments but twin facets of the same movement. The prospect of de-estrangement emerges only by retrospecting an enabling estrangement. (shrink)

In the model proposed by Findlay & Walker, the programming of saccadic eye movements is achieved by two parallel processes, one dedicated to the coding of saccade metrics (Where) and the other controlling saccade initiation (When). One outcome of the “winner-take-all” characteristics of the salience map, the main node of the model, is an independence between the metrics and the latency of saccades. We report on some observations, made in the head-unrestrained cat under pathological conditions, of a correlation between (...) accuracy and latency of saccadic gaze shifts. To account for such a correlation, the link between metrics specification (Where) and saccade triggering (When) should be amended in the model. (shrink)

Dispositional essentialism maintains that all sparse properties are essentially powerful. Two conceptions of sparse properties appear compatible with dispositional essentialism: sparse properties as pure powers or as powerful qualities. This paper compares the two views, criticizes the powerful qualities view, and then develops a new theory of pure powers, termed Point Theory. This theory neutralizes the main advantage powerful qualities appear to possess over pure powers—explaining the existence of powers during latency periods. The paper discusses the relation between powers (...) and space-time points, whether pure powers need to occupy space, and how to account for the movement of pure powers through space-time. Given Point Theory, dispositional essentialists should maintain that sparse properties are pure powers. (shrink)

In their model, Findlay & Walker propose that where and when the eyes move is determined by two relatively independent processing streams. Whereas both saccade direction and amplitude result from a low-level visual analysis of the peripheral visual stimulation, saccade latency results mainly from higher-level processes related to processing of the central information. In the present commentary, reading eye movement data are put forward as evidence against a strict autonomy of “Where” and “When” processing streams. First, saccade direction (...) and amplitude might be modified by high-level processes related to word identification. Second, the direction of a saccade directly affects its latency. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:breatheJohn Cayley (bio)To view the current version of John Cayley's digital work "breathe" as a standalone website, please visit https://work.programmatology.com/breathe/. Use of a Chrome browser is advised, and, for mobiles, the site has only been tested for iOS devices. On the desktop, switching to full screen will avoid having to manually resize the browser window to a more or less 16:9 aspect. To view Cayley's notebook with digital code, (...) visit https://observablehq.com/@shadoof/breathe.breathe is a brief, prose-poetic essay in explicitly paragrammatic language art. The 'supply text' that underlies a fundamentally dynamic, temporal making of meaning is what in other contexts might be read as an original composition by myself, its subject the interior oceanscape of breath that we experienced during the pandemic year of 2020, our respiratory rhythms threatened, invisibly, by disease. The piece is also representative of a category of still largely potential poetic artifacts to which computation lends a dynamic and here, a paragrammatic concretism.Despite Julia Kristeva having made a convincing formalist-polemical case for the paragram,1 it seems to be more or less absent from most contemporary milieux of poetic praxis as an explicit, generative principle.2 For 'poetic praxis' I might have said 'writing' or 'literary practice' but the common usage of the former is overly constrained, and its sense after Derrida is, perforce, radically ambiguous. 'Literary' (with its root and other derivations) I now tend to reserve for language art practices within the domain of which the letter is properly and compositionally constitutive. Is breathe an instance of 'writing' or 'literary practice'? Well, literary practice: yes, but not as usually conceived. 'Letteral,' definitely.In Kristeva's abstracted models of poetic language, the paragram is everywhere in both prose and poetry as such: the (chiefly) literal inscription of alternate, multiplied, yet readable 'grams,' at once within and beyond those of the text as received, generative of new meanings, and of various modes for the aestheticization of poetic objects. In subsequent or adjacent criticism–regardless of whether or not it is psychoanalytically inclined–paragram may be further associated with Lacan's "lalangue" (surfacing in breathe as 'lalanguage'), that part of Language (an anglophone term, distinctly capitalized) which clearly exceeds and eludes most of the dubious, fundamentally orthographic, or designative 'sciences' of linguistics.3 But even lalanguage is only ever at best commensurate with [End Page 97] the 'not all,' despite (or perhaps due to) the ineluctable fact that, as T. S. Eliot's Sweeney puts it, "I gotta use words when I talk to you." What should be clear, however, even from this most cursory of outlines, is that paragrams should be read as poetic and that–particularly if allowed to embrace non-literal, metaphoric instances–a case may be (has been) made that paragrams are (Kristeva would have written =) poetic language.In actually existing 'literature' we might suggest that paragrams are hypostasized or stunned (historically, by literal inscription) in latency or in hiding but, clearly, there are potential movements and/or transformative processes, realized through reading, from the 'grams' of the received text to their paragrams. While the usual sense of the prefix 'para-' is "parallel to, separate from or going beyond" (OED), Kristeva and others call attention to this real if usually implicit movement. (I quote extensively from her essay without further comment except to point out that these words are highly suggestive of other aspects of language art in digital media which are not directly addressed in the present, more focused remarks.)[...] the literary text presents itself as a system of multiple connections that could be described as a structure of paragrammatic networks. [...] The term network replaces univocity (linearity) by encompassing it, and suggests that each set (sequence) is the outcome and the beginning of a plurivalent relation. In this network, the elements will be presented as the peaks of a graph ( [...] ), enabling us to formalize the symbolic operation of language as a dynamic mark, as a moving 'gram' (hence as a paragram) which makes rather than expresses a meaning.4The movements-as-transformative(or deformative)-process in breathe are various modes of letteral replacement, particularly of letters... (shrink)

Experimental aesthetics has shed light on the involvement of pre-motor areas in the perception of abstract art. However, the contribution of texture perception to aesthetic experience is still understudied. We hypothesized that digital screen-based art, despite its immateriality, might suggest potential sensorimotor stimulation. Original born-digital works of art were selected and manipulated by the artist himself. Five behavioral parameters: Beauty, Liking, Touch, Proximity, and Movement, were investigated under four experimental conditions: Resolution (high/low), and Magnitude (Entire image/detail). These were expected (...) to modulate the quantity of material and textural information afforded by the image. While the Detail condition afforded less content-related information, our results show that it augmented the image’s haptic appeal. High Resolution improved the haptic and aesthetic properties of the images. Furthermore, aesthetic ratings positively correlated with sensorimotor ratings. Our results demonstrate a strict relation between the aesthetic and sensorimotor/haptic qualities of the images, empirically establishing a relationship between beholders’ bodily involvement and their aesthetic judgment of visual works of art. In addition, we found that beholders’ oculomotor behavior is selectively modulated by the perceptual manipulations being performed. The eye-tracking results indicate that the observation of the Entire, original images is the only condition in which the latency of the first fixation is shorter when participants gaze to the left side of the images. These results thus demonstrate the existence of a left-side bias during the observation of digital works of art, in particular, while participants are observing their original version. (shrink)

Several studies have illuminated how processing manual action verbs (MaVs) affects the programming or execution of concurrent hand movements. Here, to circumvent key confounds in extant designs, we conducted the first assessment of motor–language integration during handwriting—a task in which linguistic and motoric processes are co‐substantiated. Participants copied MaVs, non‐manual action verbs, and non‐action verbs as we collected measures of motor programming and motor execution. Programming latencies were similar across conditions, but execution was faster for MaVs than for the other (...) categories, regardless of whether word meanings were accessed implicitly or explicitly. In line with the Hand‐Action‐Network Dynamic Language Embodiment (HANDLE) model, such findings suggest that effector‐congruent verbs can prime manual movements even during highly automatized tasks in which motoric and verbal processes are naturally intertwined. Our paradigm opens new avenues for fine‐grained explorations of embodied language processes. (shrink)

ABSTRACTSocial attentional biases are a core component of social anxiety disorder, but research has not yet determined their direction due to methodological limitations. Here we present preliminary findings from a novel, dynamic eye-tracking paradigm allowing spatial–temporal measurement of attention and gaze-following, a mechanism previously unexplored in social anxiety. 105 participants took part, with those high and low in social anxiety traits entered into the analyses. Participants watched a video of an emotionally-neutral social scene, where two actors periodically shifted their gaze (...) towards the periphery. HSA participants looked more at the actors’ faces during the initial 2s than the LSA group but there were no group differences in proportion of first fixations to the face or latency to first fixate the face, although HSA individuals’ first fixations to the face were shorter. No further differences in eye movements were found, nor in gaze-following beha... (shrink)

During active vision, the eyes continually scan the visual environment using saccadic scanning movements. This target article presents an information processing model for the control of these movements, with some close parallels to established physiological processes in the oculomotor system. Two separate pathways are concerned with the spatial and the temporal programming of the movement. In the temporal pathway there is spatially distributed coding and the saccade target is selected from a Both pathways descend through a hierarchy of levels, (...) the lower ones operating automatically. Visual onsets have automatic access to the eye control system via the lower levels. Various centres in each pathway are interconnected via reciprocal inhibition. The model accounts for a number of well-established phenomena in target-elicited saccades: the gap effect, express saccades, the remote distractor effect, and the global effect. High-level control of the pathways in tasks such as visual search and reading is discussed; it operates through spatial selection and search selection, which generally combine in an automated way. The model is examined in relation to data from patients with unilateral neglect. (shrink)

Mauro Carbone’s The Flesh of Imagesexplores the status of images as the precession of the invisible and the visible in Merleau-Ponty’s notion of “sensible ideas” ideas, but is at the same time a concise, original, and illuminating exploration of Merleau-Ponty’s sense of the flesh and his later philosophy, as well as speculating on an important historical shift in the sense of Being. Carbone articulates the flesh as the traversal, by Visibility, of the seer as Being, where the invisible is shown (...) forth indirectly by the visible and is ultimately the activity of visible Being that manifests a sort of desire to see itself through enveloping the visible beings that are seers. Carbone utilizes the notion of “voyance” as a seeing further into what had not been present before as the opening of a latency that is carried forth as the invisible’s pregnancy within the visible that ultimately brings into undecidability the primacy of perception and that of imagination,as well as being a retrograde movement within time that allows access to a mythical time and renders a differing, an immemorial time that has never been—the time in which Proust’s and Merleau-Ponty’s “sensible ideas” live. Carbone details Merleau-Ponty’s“ontological rehabilitation of the surface” in which the surface like the film screen is no longer a veil as constituting an obstacle, but rather is the surface of manifestation of Being, expressing the modern mutation in the relation to Being.Dans The Flesh of Images, Mauro Carbone explore le statut des images en tant que précession du visible et de l’invisible à partir de la notion d’« idées sensibles », mais il offre en même temps une étude à la fois synthétique, originale et éclairante du sens de la chair et de la pensée du dernier Merleau-Ponty, ainsi qu’une réflexion théorique sur un tournant historique fondamental dans le sens de l’Être. Carbone articule une pensée de la chair comme ce qui est transversal – par la Visibilité – au voyant en tant qu’Être, où l’invisible se donne à voir de manière indirecte à même le visible et est ultimement l’activité de l’Être visible qui vient manifester une sorte de désir de se voir par le fait même d’envelopper les êtres visibles qui sont voyants. Carbone se sert ainsi de la notion de « voyance » en tant que voir plus ou plus loin ce qui ne s’est pas encore présentifié comme l’ouverture d’une latence qui est portée en tant que prégnance invisible au sein du visible, ce qui fait que le primat entre perception et imaginaire devient indécidable, se construisant comme un mouvement temporel rétrograde, qui donne accès à un temps mythique et réalise un temps différé et immémorial qui n’a jamais été présent – le temps des idées sensibles de Proust et de Merleau-Ponty. Carbone expose la « réhabilitation ontologique de la surface » opérée par Merleau-Ponty en ce que la surface de l’écran cinématographique ne fonctionne plus comme un voile, c’est-à-dire ne constitue plus un obstacle, mais est plutôt la surface sur laquelle l’Être se manifeste, en exprimant la mutation contemporaine de notre relation à l’Être. The Flesh of Images di Mauro Carbone esplora lo statuto delle immagini come precessione di visibile e invisibile, secondo la nozione merleau-pontiana di “idee sensibili”, ma allo stesso tempo costituisce un’indagine concisa, originale e illuminante del concetto di carne e del pensiero dell’ultimo Merleau-Ponty. Il volume riflette inoltre su un importante slittamento storico nella concezione dell’Essere. Carbone articola il concetto di carne come ciò che è trasversale, attraverso la Visibilità, al vedente in quanto Essere, in cui l’invisibile appare indirettamente attraverso il visibile e in cui, in ultima analisi, è l’attività dell’Essere visibile che manifesta una sorta di desiderio di vedere se stesso rivestendo quegli esseri visibili che sono i vedenti. Carbone impiega la nozione di “voyance” per indicare un vedere oltre che coglie ciò che non si è ancora reso presente. Si tratta dell’apertura di una latenza che emerge come pregnanza dell’invisibile all’interno del visibile. Tale dinamica conduce a un’indecidibilità del primato della percezione e dell’immaginazione, costituendo al contempo un movimento temporale retrogrado che permette di accedere a un tempo mitico e che realizza un tempo differito e immemoriale che non è mai stato presente – il tempo delle “idee sensibili” di Proust e di Merleau-Ponty. Carbone espone la “riabilitazione ontologica della superficie” condotta da Merleau-Ponty, secondo cui la superficie dello schermo cinematografico non è più un velo che ostacola, ma piuttosto una superficie su cui l’Essere si manifesta, che esprime la trasformazione contemporanea della nostra relazione all’Essere. (shrink)

In August 2017, a group of activists erected in Ottawa's downtown a tent as a first overdose prevention site as a response to what the public and the activists perceived as an epidemic—a devastating wave of opioid and fentanyl overdoses in Canada. The Ontario premier was urged to declare an emergency that would provide increased funding for harm reduction and also send a message to survivors and families that the lives of their loved ones mattered. Thus, the discourses around the (...) so‐called opioid crisis used a language of moral sentiments to legitimate political action. This “new humanitarianism” is considered a priori as good, but in this article, I ask what is politically at stake if we base our actions on the logic of humanitarian reason. The new universalism of humanitarian organizations is based on the individualism of human rights and thus on a moral imperative that replaces the political. Initiatives like the OPS movement often fill the gaps in social services in the absence of the state and address social problems as emergencies and public health issues, thereby transforming them into medical problems—performing the medicalization of sociopolitical problems. This is what I call the NGOization of the opioid crisis. This form of humanitarianism is a universalism of the temporal present without any universal promise for a better future or the amelioration of human conditions—it is a humanitarianism of emergency. What characterizes new humanitarianism is that it responds to situations of suffering that are the result of increasing inequality and injustices without addressing the root causes of this suffering. Not addressing these causes means to be complicit in perpetuating the inequalities and to restrict visions of possible alternatives. (shrink)

_Purpose_ of the article is to find out the main content and ways of embodying freedom as a value of the volunteer movement in the context of analyzing the social motivation of human behavior in general. _Theoretical basis._ The theoretical basis of the research is the philosophical and anthropological understanding of freedom as a person’s creative overcoming of obstacles to establish his or her eccentric essence. Such a vision is embedded, in particular, in Karl Jaspers’ philosophy of existence, Helmuth (...) Plessner’s philosophy of positioning in the world, and Paul Ricœur’s philosophy of rational choice of life path. _Originality__._ The importance of freedom as a value, as well as other social values, is revealed and specified through the analysis of the values of the volunteer movement. In the desire of people engaged in volunteer work to achieve freedom through other values, the content of freedom as a basis for self-reproduction of the individual, community and society is revealed. _Conclusions._ Representatives of various humanities and social sciences have distinct research interests in analyzing the values inherent in volunteers. As members of a certain society and certain communities in this society, volunteers do not act outside the economy, politics and other spheres of public life, but reveal their freedom through creative and non-standard solutions to economic, political, and other problems. At the same time, research psychologists focus attention on the personal self-realization of a person, theorists and practitioners of social work study volunteers’ desire to gain recognition from peers and other small social groups, and representatives of sociology, political science and other social sciences focus their attention on such socially significant values of volunteering as patriotism, solidarity, etc. The task of social philosophy is to justify the desire to contribute to the public good, which is common to all volunteers. Representatives of philosophical anthropology look for the best social intentions inherent in a person as a member of society in volunteering. Analysis of the values of volunteering as a motivator of human behavior provides knowledge of socially significant values inherent in every member of society to a greater or lesser extent. (shrink)

Despite their theoretical attractiveness, global egalitarian arguments for open borders face the worry that open borders would in fact exacerbate inequality. In this paper, I offer a response to such egalitarian consequentialist concerns. I argue that they fail to attend to the larger political and economic forces that create and maintain inequality. Even in cases where immigration conflicts with egalitarian goals, the conflicts tend to be due to contingent circumstances that egalitarians have reason to change. As such, they do not (...) pose a deep challenge for egalitarian defenses of open borders. However, they do illuminate an important and overlooked point: egalitarians should construe open borders as part of a broad and coherent global egalitarian program, both politically and philosophically. This is in contrast to an approach that sees the border question as an isolated and abstract philosophical question. Furthermore, egalitarians would do well to engage the political economic factors that drive migration in our world, and to buttress their concerns of distributive justice with arguments emphasizing the negative effects of the global border regime on social and relational equality. (shrink)

... the phenomenon of variable word order within a clause. Ross (), who was one of the first to discuss this phenomenon within the generative paradigm, ...

According to Darwinism, undirected natural causes are solely responsible for the origin and development of life. In particular, Darwinism rules out the possibility of God or any guiding intelligence playing a role in life's origin and development. Within western culture Darwinism's ascent has been truly meteoric. And yet throughout its ascent there have always been dissenters who regarded as inadequate the Darwinian vision that undirected natural causes could produce the full diversity and complexity of life.

Much is being made of local food. It is at once a social movement, a diet, and an economic strategy—a popular solution—to a global food system in great distress. Yet, despite its popularity or perhaps because of it, local food (especially in the US) is also something of a chimera if not a tool of the status quo. This paper reflects on and contrasts aspects of current local food rhetoric with Dalhberg’s notion of a regenerative food system. It identifies (...) three problematic emphases—the locavore emphasis, the Wal-Mart emphasis, and the Pollan emphasis—and argues that they are shifting local food (as a concept and a social movement) away from the deeper concerns of equity, citizenship, place-building, and sustainability. It is suggested that local food activists and advocates might consider the use of multiple methodologies and forms of expression to explore the integration and reintegration of local food into diverse and redundant place-based practice. A short case study of a low-income, urban neighborhood in Lansing, Michigan, illustrates the value of contextual analysis for more fully enabling the local food movement and a regenerative food system. (shrink)

ObjectiveThe correlation between the performance of coordination movement and brain activity is still not fully understood. The current study aimed to identify activated brain regions and brain network connectivity changes for several coordinated finger movements with different difficulty levels and to correlate the brain hemodynamics and connectivity with kinematic performance.MethodsTwenty-one right-dominant-handed subjects were recruited and asked to complete circular motions of single and bilateral fingers in the same direction and in opposite directions on a plane. Kinematic data including radius (...) and angular velocity at each task and synchronized blood oxygen concentration data using functional near-infrared spectroscopy were recorded covering six brain regions including the prefrontal cortex, motor cortex, and occipital lobes. A general linear model was used to locate activated brain regions, and changes compared with baseline in blood oxygen concentration were used to evaluate the degree of brain region activation. Small-world properties, clustering coefficients, and efficiency were used to measure information interaction in brain activity during the movement.ResultIt was found that the radius error of the dominant hand was significantly lower than that of the non-dominant hand in both clockwise and counterclockwise movements. The fNIRS results confirmed that the contralateral brain region was activated during single finger movement and the dominant motor area was activated in IP movement, while both motor areas were activated simultaneously in AP movement. The Δhbo were weakly correlated with radius errors. Brain information interaction in IP movement was significantly larger than that from AP movement in the brain network in the right prefrontal cortex. Brain activity in the right motor cortex reduces motor performance, while the right prefrontal cortex region promotes it.ConclusionOur results suggest there was a significant correlation between motion performance and brain activation level, as well as between motion deviation and brain functional connectivity. The findings may provide a basis for further exploration of the operation of complex brain networks. (shrink)