Joint attention has been extensively studied in the developmental literature because of overwhelming evidence that the ability to socially coordinate visual attention to an object is essential to healthy developmental outcomes, including language learning. The goal of this study was to understand the complex system of sensory-motor behaviors that may underlie the establishment of joint attention between parents and toddlers. In an experimental task, parents and toddlers played together with multiple toys. We objectively measured joint attention—and the sensory-motor (...) behaviors that underlie it—using a dual head-mounted eye-tracking system and frame-by-frame coding of manual actions. By tracking the momentary visual fixations and hand actions of each participant, we precisely determined just how often they fixated on the same object at the same time, the visual behaviors that preceded joint attention and manual behaviors that preceded and co-occurred with joint attention. We found that multiple sequential sensory-motor patterns lead to joint attention. In addition, there are developmental changes in this multi-pathway system evidenced as variations in strength among multiple routes. We propose that coordinated visual attention between parents and toddlers is primarily a sensory-motor behavior. Skill in achieving coordinated visual attention in social settings—like skills in other sensory-motor domains—emerges from multiple pathways to the same functional end. (shrink)

A decrease in cortical excitability tends to be easily followed by an increase induced by external stimuli via a mechanism aimed at restoring it; this phenomenon is called “homeostatic plasticity.” In recent years, although intervention methods aimed at promoting motor learning using this phenomenon have been studied, an optimal intervention method has not been established. In the present study, we examined whether subsequent motor learning can be promoted further by a repetitive passive movement, which reduces the excitability of (...) the primary motor cortex before motor learning tasks. We also examined the relationship between motor learning and the brain-derived neurotrophic factor. Forty healthy subjects participated. Subjects were divided into two groups of 20 individuals each. The first group was assigned to perform the motor learning task after an intervention consisting in the passive adduction–abduction movement of the right index finger at 5 Hz for 10 min, while the second group was assigned to perform the task without the passive movement. The motor learning task consisted in the visual tracking of the right index finger. The results showed that the corticospinal excitability was transiently reduced after the passive movement in the RPM condition, whereas it was increased to the level detected in the control condition after the motor learning task. Furthermore, the motor learning ability was decreased immediately after the passive movement; however, the motor performance finally improved to the level observed in the control condition. In individuals carrying the Val/Val genotype, higher motor learning was also found to be related to the more remarkable changes in corticospinal excitability caused by the RPM condition. This study revealed that the implementation of a passive movement before a motor learning tasks did not affect M1 excitatory changes and motor learning efficiency; in contrast, in subjects carrying the Val/Val polymorphism, the more significant excitatory changes in the M1 induced by the passive movement and motor learning task led to the improvement of motor learning efficiency. Our results also suggest that homeostatic plasticity occurring in the M1 is involved in this improvement. (shrink)

The effect of task difficulty on inter-task transfer is a classic issue in motor learning. We examined the relation between self-efficacy and transfer of learning after practicing different versions of a stick balancing task. Practicing the same task or an easier version led to significant pre- to post-test transfer of learning, whereas practicing a more difficult version did not. Self-efficacy increased modestly from pre- to post-test with easy practice, but decreased significantly with difficult practice. In addition, self-efficacy immediately prior (...) to the post-test was significantly lower after difficult practice than easy or intermediate practice. Self-efficacy immediately prior to the post-test, performance at the end of practice, and pre-test performance explained 75% of the variance in post-test performance. The mediating role of self-efficacy on transfer of learning offers an alternative explanation for recent findings on the superiority of easy-to-difficult transfer and may help clarify inconsistencies in earlier research. (shrink)

The process of transmitting ballet’s complex technique to young dancers can interfere with the innate processes that give rise to efficient, expressive and harmonious movement. With the intention of identifying possible solutions, this article draws on research across the fields of neurology, psychology, motor learning, and education, and considers their relevance to ballet as an art form, a technique, and a training methodology. The integration of dancers’ technique and expressivity is a core theme throughout the paper. A brief outline (...) of the historical development of ballet’s aesthetics and training methods leads into factors that influence dancers’ performance. An exploration of the role of the neuromotor system in motor learning and the acquisition of expert skills reveals the roles of sensory awareness, imagery, and intention in cuing efficient, expressive movement. It also indicates potentially detrimental effects of conscious muscle control, explicit learning and persistent naïve beliefs. Finally, the paper presents a new theory regarding the acquisition of ballet skills. Recontextualization theory proposes that placing a problematic task within a new context may engender a new conceptual approach and/or sensory intention, and hence the genesis of new motor programs; and that these new programs may lead to performance that is more efficient, more rewarding for the dancer, more pleasing aesthetically, and more expressive. From an anecdotal point of view, this theory appears to be supported by the progress of many dancers at various stages of their dancing lives. (shrink)

Given emerging evidence that learning to play a musical instrument may lead to a number of cognitive benefits for older adults, it is important to clarify how these training programs can be delivered optimally and meaningfully. The effective acquisition of musical and domain-general skills by later-life learners may be influenced by social, cultural and individual factors within the learning environment. The current study examines the effects of a 10-week piano training program on healthy older adult novices’ cognitive and motor (...) skills, in comparison to an inactive waitlisted control group. Fifteen participants completed piano training led by a music facilitator in small groups (max n = 4 per lesson class; two experimental, two waitlisted control groups). Data was collected using an explanatory sequential design: quantitative data from a battery of cognitive and motor tests was collected pre/post-test on all participants, with further post-test data from the waitlisted control group (n = 7). Qualitative data included weekly facilitator observations, participant practice diaries, and an individual, semi-structured, post-experiment interview. Bayesian modelling demonstrated moderate evidence of a strong positive impact of training on part A of the Trail Making test (TMT), indicating improved visuo-motor skills. Moderate evidence for negative impacts of training on part B of the Trail Making Test (and difference score delta) was also found, suggesting no benefit of cognitive... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Growing Up: Seeing Myself for Who I Am and Loving ItKerry MagroLast weekend, I traveled to see my cousin. He had graduated from St Mary’s Seminary in Baltimore and was being ordained as a Roman Catholic priest. The event was attended by many of my family members. Several of the littlest attendees struggled with all the commotion, some were said to be shy, some didn’t want to be crowded, (...) and parents and caregivers did what they could to make it easier on them. Watching those kids trying to cope with a family event, which was different and a bit confusing, brought back a flood of memories of my own childhood. Nothing was simple about my childhood.My life has been “interesting” for sure. As a young child I faced many challenges. Until the age of two and a half I was nonverbal. Even though later I would gain speech, my developmental delays and sensory integration dysfunction issues caused great [End Page 202] difficulty for myself and my parents. I was evaluated by professionals and was diagnosed with an autism spectrum disorder–pervasive developmental disorder not otherwise specified (PDD–NOS) at the age of four.Thoughts of that difficult time filled my head when watching the children at this family function. My uncles, aunts and cousins couldn’t possibly know my struggles in those years. They weren’t present for all the interventions and therapy sessions I endured. Today, they don’t see me as someone different or disabled. I still have some obstacles to overcome in my development but rather than bemoan where I am or where I have been I have chosen to accept myself as I am. Although some may say I have a disability I choose to embrace my abilities and to celebrate them. I’m glad I’ve stayed on a path that has led me to become an independent adult. I am now a national motivational speaker, a Master’s graduate, owner of a non–profit corporation and soon to be an author.But what about this word “disabled”? Since I was six years old I seemed to have been tagged with this word by those around me. They all considered autism as a disability. I didn’t even know I had autism until I was 11. But I was very aware of people defining me as being disabled. It had to be the reason I was being placed in Special Ed classes, for the hours I had to travel to doctors and therapies: occupational therapy, physical therapy, speech therapy. I was being called disabled and I didn’t know why. Of course the signs were there for me that I had a problem. In daycare many things confused and frightened me: loud noises, wind, water, transitions. I cried constantly, a lot more than everyone else. I had terrible tantrums (lying on the floor kicking and screaming) to the confusion and consternation of the adults and caregivers around me. I attended two different daycare centers and was asked to leave both of them. I couldn’t even make the transition from the door of a daycare center to my parent’s car without fighting, screaming and crying uncontrollably.It’s now hard to believe that my difficulty with sensory integration dysfunction, transitions and social interactions lasted for almost 15 years of my life. During those years there were many confusing, frightening and painful episodes for me, my parents and others around us.Like most kids with these types of deficits, we tried to find splinter skills to help me compensate. I have hyper–mobility of the joints making buttoning and fine motor tasks almost impossible. I also have dysgraphia, which makes it difficult for me to hold a pen or pencil to write. Even with therapy I never learned to ride a bicycle. One bright side to the hyper–mobility was being able to learn to type 100 words per minute.My sensitivity to water, wind and loud sounds was extreme. I fought my parents each time they tried to get me into the bathtub. I hated going on the swings because I couldn’t feel my feet on the ground... (shrink)

Sensory substitution devices (SSDs) are most familiar from their use with subjects who are deficient in a target modality (e.g. congenitally blind subjects), but there is no doubt that the use and potential value of SSDs extend to persons without such deficits. Recent work by Amedi and his team (in particular Levy-Tzedek et al. 2012) has begun to explore this. Their idea is that SSDs may facilitate behavioural transference (BT) across sense modalities. In this case, a motor skill (...) learned through visual perception might be subsequently employed in response to auditory perception, using an SSD as a mediator. They infer from the existence of such BT that the learned skill is amodally represented. After a brief overview I identify ways to more fully test for BT within this experimental paradigm and argue that their conclusion about amodal representation is premature. Additionally, I argue that their preferred SSD (Eyemusic) is of limited value for the project. While my remarks are critical, my intention is to be constructive, particularly in light of the fact that Levy-Tzedek et al. (2012), is, I believe, the first output from Amedi's lab concerning this line of research. (shrink)

Although the neural bases of the brain associated with movement disorders in children with developmental coordination disorder are becoming clearer, the information is not sufficient because of the lack of extensive brain function research. Therefore, it is controversial about effective intervention methods focusing on brain function. One of the rehabilitation techniques for movement disorders involves intervention using motor imagery. MI is often used for movement disorders, but most studies involve adults and healthy children, and the MI method for children (...) with DCD has not been studied in detail. Therefore, a review was conducted to clarify the neuroscientific basis of the methodology of intervention using MI for children with DCD. The neuroimaging review included 20 magnetic resonance imaging studies, and the neurorehabilitation review included four MI intervention studies. In addition to previously reported neural bases, our results indicate decreased activity of the bilateral thalamus, decreased connectivity of the sensory-motor cortex and the left posterior middle temporal gyrus, bilateral posterior cingulate cortex, precuneus, cerebellum, and basal ganglia, loss of connectivity superiority in the abovementioned areas. Furthermore, reduction of gray matter volume in the right superior frontal gyrus and middle frontal gyrus, lower fractional anisotropy, and axial diffusivity in regions of white matter pathways were found in DCD. As a result of the review, children with DCD had less activation of the left brain, especially those with mirror neurons system and sensory integration functions. On the contrary, the area important for the visual space processing of the right brain was activated. Regarding of characteristic of the MI methods was that children observed a video related to motor skills before the intervention. Also, they performed visual-motor tasks before MI training sessions. Adding action observation during MI activates the MNS, and performing visual-motor tasks activates the basal ganglia. These methods may improve the deactivated brain regions of children with DCD and may be useful as conditioning before starting training. Furthermore, we propose a process for sharing the contents of MI with the therapist in language and determining exercise strategies. (shrink)

The measurement of sensory intensity has had a long history, attracting the attention of investigators from many disciplines including physiology, psychology, physics, mathematics, philosophy, and even chemistry. While there has been a continuing doubt by some that sensation has the properties necessary for measurement, experiments designed to obtain estimates of sensory intensity have found that a general rule applies: Equal stimulus ratios produce equal sensory ratios. Theories concerning the basis for this simple psychophysical rule are discussed, with emphasis given to (...) the physical correlate theory, which considers judgments of subjective magnitudes to be based upon estimates of physical dimensions that vary regularly with changes in degree of stimulation. For the most thoroughly investigated sensory scales, brightness and loudness, the physical correlate is considered to be distance. Our “tacit knowledge” of the sensory effects of changing distance plays an essential role in matching motor activities to environmental conditions and in ensuring accurate perceptual evaluations through brightness and loudness constancies. In psychophysical experiments, subjects apparently use this same tacit knowledge when required to estimate relative subjective magnitudes. The evidence related to the physical correlate theory is summarized, and it is concluded that, while under appropriate conditions we demonstrate considerable skill in evaluating environmental relationships, we are quite unable to estimate the neurophysiological nature or quantity of sensory response. A psychophysics devoted to studying conditions required for accuracy and conditions producing errors in the perception of environmental relationships would seem to be more valuable than one devoted to subjective magnitudes. (shrink)

The research problem focused on curriculum has specific courses with a small number of educational units through which the student must go through all the stages of learning basic skills. Therefore, we must increase the effectiveness of learning these skills and correct the errors that the learner may face. From here, the problem of the research became clear to us in the lack of effectiveness of learning some skills. Basic skills for students in fencing and the many technical errors during (...) performance, so the researcher thought one should study educational exercises that are appropriate for the stages of building the motor program for some basic fencing skills to increase the effectiveness of learning so that the learner can master the skill with the least number of errors. The research objectives prepared educational exercises according to the stages of building the motor program, and Identifying the effect of educational exercises according to the stages of building a motor program on learning some epee skills for students in the experimental group, and Identify the differences between the two groups Control and experimental In learning some skills with epee weapons for students In the posttest. and Use Finder One The experimental approach was designed with two equal groups : control and experimental. The same pre-test and post-test, because it suits the nature of the problem and achieves the research objectives. And the research population are third-year students in the Department of Physical Education and Sports Sciences/Islamic University, who number (306) students, and the research sample of (40) students was randomly selected and divided into two equal groups(Control and experimental) with (20) students for each group, in addition to the exploratory experiment sample of (8) students. And it was done using some educational means during educational exercises and based on the stages of building the motor program for the skill to be learned. The time of the educational unit was (90/min), and the implementation of the educational curriculum began on (11/21/2023 AD) and ended on (1/18/2024 AD). The researchers concluded that the use of complex instructional exercises helped to learn and develop the skill performance of some skills with the epee weapon according to the stages of building the motor program, and the use of focused educational exercises helped build motor perception among learners, which led to accelerating and activating the learning process. The most important recommendations were: Emphasis on the use of complex educational exercises when learning basic skills for students with epee weapons to build motor programs and new motor perceptions about the skill to be learned. also it is necessary to focus on the use of complex educational exercises according to the construction of the motor program in the educational units by trainers and teachers. (shrink)

According to some recent empirical studies revealing that creativity is linked to sensorimotor components, the current research was aimed at evaluating whether sensory afferences could modulate originality in drawing of children and adolescents. Sixty-nine children from 1st, 3rd, 6th, and 8th grades were required to produce a man who exists and a man who doesn’t exist with fingers or stylus on a tablet and with a pen on paper. Drawings were assessed with an originality scale comparing original drawings to unoriginal (...) ones. Since, in comparison to drawings made on paper with a pen, drawing with fingers enhances proprioceptive information, this condition was expected, according to cognitive load theory, to favor originality in drawing by reducing cognitive resources devoted to motor control of the graphic gesture. On the contrary, since the use of a stylus involves a proprioceptive loss of information, which enhances intrinsic load by increasing cognitive resources devoted to motor control, it was expected that drawing with a stylus on the tablet would lead to the least original drawings. Results only partially confirmed these hypotheses. While the use of fingers on the tablet led to the highest original scores, using a stylus on the tablet did not impair originality in drawing of children and adolescents. On the opposite, the use of a stylus led 3rd–8th graders to perform better than with pen on paper. This modulation of the tool on originality does not confirm the hypotheses formulated in accordance with the cognitive load framework. However, it could be explained according to an embodied perspective of creativity considering the creative process as relying on a sensorimotor prediction process in which sensory afferences are central to generating and evaluate creative ideas. This research opens new avenues on creativity and proposes to consider the development of predictive motor control as a significant part of creativity development. (shrink)

In this article, I link the empirical hypothesis that neural representations of sensory stimulation near the body involve a unique motor component to the idea that the perceptual field is structured by skillful bodily activity. The neurophenomenological view that emerges is illuminating in its own right, though it may also have practical consequences. I argue that recent experiments attempting to alter the scope of these near space sensorimotor representations are actually equivocal in what they show. I propose resolving this (...) ambiguity by treating these representations as responsive to the development or degeneration of know-how—which can be isolated as an appropriate object for scientific investigation. (shrink)

The present commentary considers the question of what must be learned in different types of motor skills, thereby limiting the question of what should be adjusted in the APG model in order to explain successful learning. It is concluded that an open loop model like the APG might well be able to describe the learning pattern of motor skills in a stable, predictable environment. Recent research on saccadic plasticity, however, illustrates that motor skills performed in an unpredictable (...) environment depend heavily on sensory (mostly visual) feedback, [HOUK et al.]. (shrink)

Acute aerobic exercise has been shown to improve fine motor skills and alter activation of the motor cortex. The intensity of exercise may influence M1 activation, and further impact whole-body motor skill performance. The aims of the current study were to compare a whole-body motor skill via a piano task following moderate-intensity training and high-intensity interval training, and to determine if M1 activation is linked to any such changes in performance. Nine subjects, aged 18 (...) ± 1 years completed a control, MIT, and HIIT trial followed by administration of a piano performance task. M1 activation was evaluated by measuring oxyhemoglobin and hemoglobin difference changes during post-exercise piano performance using functional near-infrared spectroscopy. The results indicate that piano performance scores were higher after the MIT trial, but not HIIT trial, compared to the control trial. A negative relationship was detected between heart rate during HIIT and post-HIIT piano scores. M1 activation was significantly increased after the HIIT trial. M1 activation was also positively associated with piano performance when exercise trials and all trials were combined. We found that acute moderate-intensity exercise led to an improvement in complex motor skill performance while higher-intensity exercise increased M1 activation. These results demonstrate that moderate-intensity exercise can prime the nervous system for the acquisition of whole-body motor skills, suggesting that similar exercise protocols may be effective in improving the outcomes of other motor tasks performed during regular routines of daily life. In addition, it appears that improvements in motor task performance may be driven by M1 activation. Our findings provide new mechanistic insight into the complex relationship between exercise intensity, M1 activation, and whole-body motor skill performance. (shrink)

Approaches to foster motor creativity differ according to whether creative movements are assumed to be enacted creative ideas, or solutions to emerging motor problems that arise from task and environmental constraints. The twofold aim of the current study was to investigate whether an enriched physical education intervention delivered with a joint constraints-led and cognitive stimulation approach fosters motor creativity, and the responsiveness to the intervention is moderated by baseline motor and cognitive skills and sex; the intervention (...) may benefit motor creativity through gains in motor coordination, executive function, and creative thinking. Ninety-five children, aged 6–9 years, participated in a 6-month group randomized trial with specialist-led enriched PE vs. generalist-led conventional PE. Before and after the intervention, Bertsch’s Test of Motor Creativity, Movement Assessment Battery for Children, Random Number Generation task and Torrance Test of Creative Thinking were administered. Linear mixed models were run accounting for the random effects of data clusters. Multiple mediation analysis was performed to assess whether motor coordination, executive function and creative thinking mediated any improvement of motor creativity. Results showed that specialist-led enriched PE, compared to generalist-led conventional practice, elicited a more pronounced improvement in all motor creativity dimensions independently of baseline levels of motor and cognitive skills and sex; and improved motor creativity was partially mediated by improved motor coordination and, as regards motor flexibility, also by improved inhibitory ability. In conclusion, enriching PE with tailored manipulations of constraints and variability may enhance the ability to create multiple and original task-pertinent movements both directly and through indirect paths. The results are discussed extending to motor creativity a theoretical framework that distinguishes different creativity modes. The intervention may have fostered the generation of creative movements directly through the exposure to variation in constraints, activating the sensorimotor ‘flow’ mode of creativity that bypasses higher-order cognition, but also indirectly through a systematic and conscious convergence on solutions, activating the ‘deliberate’ mode of creativity that relies on inhibition to reject common or task-inappropriate movement categories. (shrink)

Assuming that the contemporary world is inevitably set in the context of moistmedia (Ascott 2000), this article discusses some artistic proposals that specifically seek to explore the relationship between dry technology and the wet human body, as in the case of telematic dance. This article is grounded in Clark’s (2003) concept of the ‘extended mind’ and ‘cognitive artefact’; Noë’s (2004; 2012) ‘activism’ theory; and Gallagher’s (2005) ideas surrounding ‘body image’ and ‘body schema’. My discussion of ‘moistmedia’ is focused on Ascott’s (...) ‘Moist Manifesto’ (2000, 2003a), as well as moist theories which contribute to rethinking notions of (tele)presence, time, space, distance and of the very body. Through these new comprehensions we can understand the new perceptual demands that dancers have to deal with in the context of telematic dance. This new art configuration promotes different sensory motor experiences compared with a stage-based dance environment. The networked field of telematic dance is one way in which to render reality fluid in a moist context. In this sense, telematic projects could be assumed as moist art – ‘the hybrid interval between cyber and physical space’ – and as the ‘digitally dry, biologically wet, and spiritually numinous’ (Ascott 2003). Analyses of performances created within the project entitled ‘Embodied Varios Darmstadt’ 58’ (2013–14), with the collaboration of artists from Mexico, Spain, Portugal and Chile, will contribute to my discussion of telematic dance. This telematic artistic project was created to develop the concept of the ‘(tele) sonorous body’ from a theoretical and aesthetic point of view, so as to follow my interest in exploring telepresence beyond visual image. In this article, it is assumed that a human being experiences her/his world through sensory motor skills and that these are in play when s/he interacts with the environment (Noë 2004), a milieu garnered from Ascott’s ‘Moist Manifesto’ (2003a). The cultural shift proposed by this manifesto brings into play some important considerations, including notions of negotiation, construction, context and distributed mind, which overlap with conventional ideas of reception, representation, content and the autonomous brain respectively. Our interactions via telepresence with a dance partner bring about different ways of perceiving one another and oneself, because body image and body schema play an active role in shaping our perceptions (Gallagher 2005). Our actions and perceptions, our body image and body schema are responsible for our behaviour and learning in this world, interweaving these bodies partially wet (i.e. those onstage) with the dry (i.e. those tele-transported through cyberspace. The analysis of ‘Embodied Varios Darmstadt’ 58’ will contribute to understanding the perceptual demands of the dancer within the telematic environment, as well as the new notions of time, space, distance, presence, and the very notion of relationship or body contact in dance embedded into this ‘+ + biological culture’. (shrink)

Learning new movement patterns is a normal part of daily life, but of critical importance in both sport and rehabilitation. A major question is how different sensory signals are integrated together to give rise to motor adaptation and learning. More specifically, there is growing evidence that pain can give rise to alterations in the learning process. Despite a number of studies investigating the role of pain on the learning process, there is still no systematic review to summarize and critically (...) assess investigations regarding this topic in the literature. Here in this systematic review, we summarize and critically evaluate studies that examined the influence of experimental pain on motor learning. Seventeen studies that exclusively assessed the effect of experimental pain models on motor learning among healthy human individuals were included for this systematic review, carried out based on the preferred reporting items for systematic reviews and meta-analyses statement. The results of the review revealed there is no consensus regarding the effect of pain on the skill learning acquisition and retention. However, several studies demonstrated that participants who experienced pain continued to express a changed motor strategy to perform a motor task even 1 week after training under the pain condition. The results highlight a need for further studies in this area of research, and specifically to investigate whether pain has different effects on motor learning depending on the type of motor task. (shrink)

Objectives: Neuroplastic changes that drive recovery of shoulder/elbow function after stroke have been poorly understood. The purpose of this study was to determine the relationship between neuroplastic brain changes related to shoulder/elbow movement control in response to treatment and recovery of arm motor function in chronic stroke survivors.Methods: Twenty-three chronic stroke survivors were treated with 12 weeks of arm rehabilitation. Outcome measures included functional Magnetic Resonance Imaging (fMRI) for the shoulder/elbow components of reach and a skilled motor function (...) test (Arm Motor Abilities Test, AMAT), collected before and after treatment.Results: We observed two patterns of neuroplastic changes that were associated with gains in motor function: decreased or increased task-related brain activation. Those with significantly better motor function at baseline exhibited a decrease in brain activation in response to treatment, evident in the ipsilesional primary motor and contralesional supplementary motor regions; in contrast, those with greater baseline motor impairment, exhibited increased brain activation in response to treatment. There was a linear relationship between greater functional gain (AMAT) and increased activation in bilateral primary motor, contralesional primary and secondary sensory regions, and contralesional lateral premotor area, after adjusting for baseline AMAT, age, and time since stroke.Conclusions: Recovery of functional reach involves recruitment of several contralesional and bilateral primary motor regions. In response to intensive therapy, the direction of functional brain change (i.e., increase or decrease in task-related brain recruitment) for shoulder/elbow reach components depends on baseline level of motor function and may represent either different phases of recovery or different patterns of neuroplasticity that drive functional recovery. (shrink)

Classic studies in human sensorimotor control use simplified tasks to uncover fundamental control strategies employed by the nervous system. Such simple tasks are critical for isolating specific features of motor, sensory, or cognitive processes, and for inferring causality between these features and observed behavioral changes. However, it remains unclear how these theories translate to complex sensorimotor tasks or to natural behaviors. Part of the difficulty in performing such experiments has been the lack of appropriate tools for measuring complex (...) class='Hi'>motor skills in real-world contexts. Robot-assisted surgery (RAS) provides an opportunity to overcome these challenges by enabling unobtrusive measurements of user behavior. In addition, a continuum of tasks with varying complexity – from simple tasks such as those in classic studies to highly complex tasks such as a surgical procedure – can be studied using RAS platforms. Finally, RAS includes a diverse participant population of inexperienced users all the way to expert surgeons. In this perspective, we illustrate how the characteristics of RAS systems make them compelling platforms to extend many theories in human neuroscience, as well as, to develop new theories altogether. (shrink)

Infants are global perceivers. They detect patterns in stimulation that allow detection of many affordances of the environment. Pick-up of structural patterns across forms of ambient energy awaits maturation of sensory systems and improvements in motor skill, but development proceeds rapidly during the first year. Researchers in perceptual development must devise and refine existing tools to examine infants' abilities.

Speech is a perceptuo-motor system. A natural computational modeling framework is provided by cognitive robotics, or more precisely speech robotics, which is also based on embodiment, multimodality, development, and interaction. This paper describes the bases of a virtual baby robot which consists in an articulatory model that integrates the non-uniform growth of the vocal tract, a set of sensors, and a learning model. The articulatory model delivers sagittal contour, lip shape and acoustic formants from seven input parameters that characterize (...) the configurations of the jaw, the tongue, the lips and the larynx. To simulate the growth of the vocal tract from birth to adulthood, a process modifies the longitudinal dimension of the vocal tract shape as a function of age. The auditory system of the robot comprises a “phasic” system for event detection over time, and a “tonic” system to track formants. The model of visual perception specifies the basic lips characteristics: height, width, area and protrusion. The orosensorial channel, which provides the tactile sensation on the lips, the tongue and the palate, is elaborated as a model for the prediction of tongue-palatal contacts from articulatory commands. Learning involves Bayesian programming, in which there are two phases: specification of the variables, decomposition of the joint distribution and identification of the free parameters through exploration of a learning set, and utilization which relies on questions about the joint distribution. Two studies were performed with this system. Each of them focused on one of the two basic mechanisms, which ought to be at work in the initial periods of speech acquisition, namely vocal exploration and vocal imitation. The first study attempted to assess infants’ motor skills before and at the beginning of canonical babbling. It used the model to infer the acoustic regions, the articulatory degrees of freedom and the vocal tract shapes that are the likeliest explored by actual infants according to their vocalizations. Subsequently, the aim was to simulate data reported in the literature on early vocal imitation, in order to test whether and how the robot was able to reproduce them and to gain some insights into the actual cognitive representations that might be involved in this behavior. Speech modeling in a robotics framework should contribute to a computational approach of sensori-motor interactions in speech communication, which seems crucial for future progress in the study of speech and language ontogeny and phylogeny. (shrink)

The problem of the research was represented by the lack of interest of many teachers in the use of diversification and change in various exercises, despite the positive role it plays in generalizing the motor program for any fencing skill, even though most of its skills are characterized by difficulty in performing them, which requires providing the largest number of motor programs in order to be The learner has full readiness and preparedness, and the research aims to (...) prepare various exercises to develop sensory perception and accuracy in performing complex attack skills and the stabbing movement. And to identify the effect of various exercises in developing the students’ kinetic awareness and accuracy of combined attack skills and stabbing movements in fencing. Use the researcherthatThe experimental approach with two equal groups. The research sample represented the students of the third stage of the Department of Physical Education and Sports Sciences at the Islamic University for the academic year 2022-2023 AD, and they numbered (50) students. They were selected by a simple random method, and were divided into two groups (experimental and control), and the number of each group was (25). ) student. The experimental group applied the various exercises prepared by the researcherthatAccording to the stages of building the motor program for learning epee skills in fencing, it was included among the educational units approved in colleges of physical education for third-year students, at the rate of one educational unit per week, amounting to (6) educational units. The time of the educational unit was (90/min), and the time of the educational unit was divided into the preparatory section. (15/d), the main section (65/d), and the final section (10/d). The most important conclusions were that there was a significant effect of the various exercises in developing sensory-motor perception and accuracy of performance in learning fencing skills. The most important recommendations are the need to pay attention to various exercises during educational units because they help learners expand their educational awareness and thus reflect on their performance of skills. (shrink)

In this paper we attempt to advance the enactive discourse on perception by highlighting the role of bodily affects as prenoetic constraints on perceptual experience. Enactivists argue for an essential connection between perception and action, where action primarily means skillful bodily intervention in one’s surroundings. Analyses of sensory-motor contingencies (as in Noë 2004) are important contributions to the enactive account. Yet this is an incomplete story since sensory-motor contingencies are of no avail to the perceiving agent without motivational (...) pull in one direction or another or a sense of the pertinent affective contingencies. Before directly addressing the issue of affect in perception, we explain our peculiar, low-level conception of affect as a form of world-involving intentionality that modulates (minimally) bodily behavior without necessarily possessing informational value of any kind. We then address the deficiency concerning affect in enactive accounts of perception by examining some exemplary forms of bodily affect that constrain perception. We show that bodily affect significantly contributes to (either limiting or enabling) our contact with the world in our perceptually operative attentive outlook, in a kind of perceptual interest or investment, and in social perception. (shrink)

Veit suggests that the challenge of coordinating movement in multicellular organisms led to the evolution of a prioritizing value system, which rendered organisms complex enough to be sentient and drove the Cambrian explosion, while the absence of this evaluation system led to the demise of Ediacaran animals. In this commentary we criticize Veit’s terminology and evolutionary proposals, arguing that his terminology and evolutionary scenarios are problematic, and put forward alternative proposals. We suggest that sentience is a system property, and that (...) the evolution of sentience was the outcome of the evolution of open-ended associative learning, which included the coevolution of sensory, motor, memory, and value subsystems. We suggest that these coevolutionary system dynamics were a factor in the Cambrian explosion and contributed to the extinction of the Ediacaran biota. (shrink)

Children’s fine motor skills link to cognitive development, however, research on their involvement in language processing, also with adults, is scarce. Lexical items are processed differently depending on the degree of sensorimotor information inherent in the words’ meanings, such as whether these imply a body-object interaction or a body-part association. Accordingly, three studies examined whether lexical processing was affected by FMS, BOIness, and body-part associations in children and adults. Analyses showed a differential link between FMS and lexical processing as (...) a function of age. Whereas response latencies indicated that children’s FMS were associated with “hand” words, adults’ FMS linked to the broader concept of BOI. Findings have implications for shared activation theories positing that FMS support lexical processing. (shrink)

Some 20 years ago Todd and colleagues proposed that rhythm perception is mediated by the conjunction of a sensory representation of the auditory input and a motor representation of the body (Todd, 1994a, 1995 ), and that a sense of motion from sound is mediated by the vestibular system (Todd, 1992a, 1993b ). These ideas were developed into a sensory-motor theory of rhythm and beat induction (Todd et al., 1999 ). A neurological substrate was proposed which might form (...) the biological basis of the theory (Todd et al., 2002 ). The theory was implemented as a computational model and a number of experiments conducted to test it. In the following time there have been several key developments. One is the demonstration that the vestibular system is primal to rhythm perception, and in related work several experiments have provided further evidence that rhythm perception is body dependent. Another is independent advances in imaging, which have revealed the brain areas associated with both vestibular processing and rhythm perception. A third is the finding that vestibular receptors contribute to auditory evoked potentials (Todd et al., 2014a, b ). These behavioral and neurobiological developments demand a theoretical overview which could provide a new synthesis over the domain of rhythm perception. In this paper we suggest four propositions as the basis for such a synthesis. (1) Rhythm perception is a form of vestibular perception; (2) Rhythm perception evokes both external and internal guidance of somatotopic representations; (3) A link from the limbic system to the internal guidance pathway mediates the “dance habit”; (4) The vestibular reward mechanism is innate. The new synthesis provides an explanation for a number of phenomena not often considered by rhythm researchers. We discuss these along with possible computational implementations and alternative models and propose a number of new directions for future research. (shrink)

Most animals have significant behavioral expertise built in without having to explicitly learn it all from scratch. This expertise is a product of evolution of the organism; it can be viewed as a very long term form of learning which provides a structured system within which individuals might learn more specialized skills or abilities. This paper suggests one possible mechanism for analagous robot evolution by describing a carefully designed series of networks, each one being a strict augmentation of the previous (...) one, which control a six legged walking machine capable of walking over rough terrain and following a person passively sensed in the infrared spectrum. As the completely decentralized networks are augmented. the robot’s performance and behavior repetoire demonstrably improve. The rationale for such demonstrations is that they may provide a hint as to the requirements for automatically building massive networks to carry out complex sensory-motor tasks. The experiments with an actual robot ensure that an essence of reality is maintained and that no critical disabling problems have been ignored. (shrink)

Language and information processes are critical issues in scientific controversies regarding the qualities that epitomize humanness. Whereas some theorists claim human mental uniqueness with regard to language, others point to successes in teaching language skills to other animals. However, although these animals may learn names for things, they show little ability to utilize a complex framework of symbolic reference. In such a framework, words or other symbols refer not only to objects and concepts but also to sequential and hierarchical relationships (...) with other symbols. This process is essential to human mental operations, including language, mathematics, and music. In humans, these operations may have coevolved with the prefrontal area of the cerebral cortex, which is proportionately much larger in humans than in other animals and more intricately linked with other areas of the brain. Analysis of the structure and function of the prefrontal area suggests that it is centrally involved in the operation of higher‐order associative relationships involving the subordination of one set of associations to another. This alternate learning strategy apparently appeared at the cost of certain sensory, motor, or limbic abilities. The payoff was symbolic thinking. Humans thus are unique among species, not just for their highly developed language ability but for their odd style of thinking and learning. (shrink)

Synesthesia is a phenomenon in which an additional nonstandard perceptual experience occurs consistently in response to ordinary stimulation applied to the same or another modality. Recent studies suggest an important role of semantic representations in the induction of synesthesia. In the present proposal we try to link the empirically grounded theory of sensory-motor contingency and mirror system based embodied simulation to newly discovered cases of swimming-style color synesthesia. In the latter color experiences are evoked only by showing the synesthetes (...) a picture of a swimming person or asking them to think about a given swimming style. Neural mechanisms of mirror systems seem to be involved here. It has been shown that for mirror-sensory synesthesia, such as mirror-touch or mirror-pain synesthesia, concurrent experiences are caused by the overactivity in the mirror neuron system responding to the specific observation. The comparison of different forms of synesthesia has the potential of challenging conventional thinking on this phenomenon and providing a more general, sensory-motor account of synesthesia encompassing cases driven by semantic or emulational rather than pure sensory or motor representations. (shrink)

This chapter discusses recent attempts to clarify the notion of practical representation and its theoretical fruitfulness. The ultimate goal is not just to show that intellectualists are on good grounds when they appeal to practical representation in their theories of know-how. Rather, it is to argue that ​ any plausible theory of skill and know-how has to appeal to the notion of practical representation developed here. §1 explains the notion of a mode of presentation and introduces practical modes of (...) presentation. §2 illustrates practical representation by discussing models of motor control in current theories of sensori-motor psychology; §3 puts forward an argument for positing practical representation. §4 goes from practical non-conceptual representations to practical conceptual representations — to practical concepts. §5 concludes. (shrink)

Recent theoretical and empirical work in cognitive science and neuroscience is brought into contact with the concept of the flow experience. After a brief exposition of brain function, the explicit–implicit distinction is applied to the effortless information processing that is so characteristic of the flow state. The explicit system is associated with the higher cognitive functions of the frontal lobe and medial temporal lobe structures and has evolved to increase cognitive flexibility. In contrast, the implicit system is associated with the (...) skill-based knowledge supported primarily by the basal ganglia and has the advantage of being more efficient. From the analysis of this flexibility/efficiency trade-off emerges a thesis that identifies the flow state as a period during which a highly practiced skill that is represented in the implicit system’s knowledge base is implemented without interference from the explicit system. It is proposed that a necessary prerequisite to the experience of flow is a state of transient hypofrontality that enables the temporary suppression of the analytical and meta-conscious capacities of the explicit system. Examining sensory-motor integration skills that seem to typify flow such as athletic performance, writing, and free-jazz improvisation, the new framework clarifies how this concept relates to creativity and opens new avenues of research. (shrink)

PurposeGross motor skills and inhibitory control which are both development in preschool stage is significant for preschooler to healthy growth. However, the evidence of relationship between them in preschoolers are still insufficient, most of studies only focus on youth. Thus, the aim of this research is to examine the association between GMS and IC in preschool children.MethodsThis cross-sectional study used baseline data from a previous intervention study of preschoolers conducted in 2018. GMS were assessed by using the Test for (...) Gross Motor Development in preschoolers, which includes two subtests of locomotor and object control skills. Total GMS is calculated from the sum of these two subtests. The Fish Flanker task was used to evaluate both accuracy and reaction time of IC. Multivariate linear regression models were established to analyze the relationships between GMS and IC.ResultsA total of 123 preschool-age children were included in the final analysis. After adjusting for confounders, GMS, locomotor, and object control skills were all negatively related with reaction time of IC.ConclusionThere was a significant negative correlation between gross motor skills and the reaction time of inhibitory control in preschool children. Further research is needed to verify this finding in prospective and experimental studies. (shrink)

Handwriting is a complex activity that involves continuous interaction between lower-level handwriting and motor skills and higher-order cognitive processes. It is important to allocate mental resources to these high-order processes since these processes place a great demand on cognitive capacity. This is possible when lower-level skills such as transcription are effortlessness and fluent. Given that fluency is a value in virtually all areas of academic learning, schools should provide instructional activities to promote writing fluency from the first stages of (...) learning to write. In an effort to determine if teaching handwriting enhances writing fluency, we conducted a systematic and meta-analytic review of the writing fluency intervention literature. We selected 31 studies: 21 true and quasi-experimental studies, 4 single-group design, 3 single-subject design, and 3 non-experimental studies, conducted with K-6 students in a regular school setting. A total of 2,030 students participated in these studies. When compared to no instruction or non-handwriting instructional conditions, teaching different handwriting intervention programs resulted in statistically significant greater writing fluency (ES = 0.64). Moreover, three specific handwriting interventions yielded statistically significant results in improving writing fluency, when compared to other handwriting interventions or to typical handwriting instruction conditions: handwriting focused on training timed transcription skills (ES = 0.49), multicomponent handwriting treatments (ES = 0.40), and performance feedback (ES = 0.36). There were not enough data to calculate the impact of sensory-motor and self-regulated strategy handwriting interventions on writing fluency. The significance of these findings for implementing and differentiating handwriting fluency instruction and guiding future research will be discussed. (shrink)

Observational learning can enhance the acquisition and performance quality of complex motor skills. While an extensive body of research has focused on the benefits of synchronous (i.e., concurrent physical practice) and non-synchronous (i.e., delayed physical practice) observational learning strategies, the question remains as to whether these approaches differentially influence performance outcomes. Accordingly, we investigate the differential outcomes of synchronous and non-synchronous observational training contexts using a novel dance sequence. Using multidimensional cross-recurrence quantification analysis, movement time-series were recorded for novice (...) dancers who either synchronised with (n = 22) or observed and then imitated (n = 20) an expert dancer. Participants performed a 16-count choreographed dance sequence for 20 trials assisted by the expert, followed by one final, unassisted performance trial. Although end-state performance did not significantly differ between synchronous and non-synchronous learners, a significant decline in performance quality from imitation to independent replication was shown for synchronous learners. A non-significant positive trend in performance accuracy was shown for non-synchronous learners. For all participants, better imitative performance across training trials led to better end-state performance, but only for the accuracy (and not timing) of movement reproduction. Collectively, the results suggest that synchronous learners came to rely on a realtime mapping process between visual input from the expert and their own visual and proprioceptive intrinsic feedback, to the detriment of learning. Thus, the act of synchronising alone does not ensure an appropriate training context for advanced sequence learning. (shrink)

Electronic sports and other variants of ‘digital sports’ have increased in popularity all over the world and may even come to challenge hegemonic concepts of sport. More relevant than the apparent opposition between ‘physical’ and ‘non-physical’ is the question what kind of embodiment is manifested within virtual environments. In this paper, we argue that eSports do require the learning and performance of motor skills and that embodiment within a virtual environment may be considered playful or even athletic. The type (...) of skills that might be tested can even be considered fundamental movement skills. Under appropriate educational supervision, with knowledge of the game, eSports can be utilized for the development of specific elements of digital literacy. Although motor skills are a defining characteristic of eSports, we do not argue that eSports should be integrated within PE. These arguments have not so much to do with the status of physicality present, but with differences in t... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Image of the Performing BodyEric C. Mullis (bio)Elsewhere I have discussed the principles of embodied expression that are developed in the practice of the performance arts—dance and theatre.1 These principles, it was argued, disclose the work that must be done in order to transform the human body into an aesthetically expressive medium. That is, precarious balance, the interplay of oppositional energies, and the compression of energy must be (...) mastered if a performance artist is to overcome the artifice of the stage and develop scenic presence. However, in that essay I said little regarding the manner in which the body acquires these skills and little about the effects that the transformation has on the artist's experience of embodiment. I would like to continue here by discussing how the body is modified in the process of developing the skill sets necessary for performance as well as how this developmental process affects the performer's corporeal experience. More specifically, I will draw on the notions of the body schema and the body image in order to clarify how the body can be transformed into an aesthetically expressive medium. In the first section I discuss the functions of the body image and body schema as well as the nature of their interaction. In the second section I discuss what relevance these concepts have for our understanding of the skill acquisition process. Finally, since the points made in the first two sections can be applied to non-peformative practices (such as sport, yoga, and martial arts) the last section focuses on the performance arts by discussing how the body schema and body image are developed in order to create a space of effective gesture.Body Image and Body SchemaShaun Gallagher argues that "The body image consists of a complex set of intentional states and dispositions—perceptions, beliefs, and attitudes—in [End Page 62] which the intentional object is one's own body."2 That is, there are three kinds of intentional content that constitute the body image—the body percept, the body concept, and the body affect. The image of my body is rooted in sensorimotor and kinesthetic perceptions, specific beliefs about my body, as well as emotions that often arise in response to such beliefs. Perception gives me a sense of the condition of my body at any point in time, while conceptions build upon perceptual content and allow one to understand the nature of one's embodiment. For example, the belief that the body is akin to a machine that can run well, break down, be diagnosed, and repaired is widespread since it is based in a widely accepted philosophy of medicine. That is, the body is often conceived as a thing that must be fixed by those who have the expertise that allows them to understand its intricate systems and processes. This example not only gives us insight into the perceptual and conceptual content of the body image but also demonstrates that beliefs about the body are conditioned by culture. This latter point is also supported by observations regarding the manner in which the body is invested with emotion. For example, some may feel frustrated with their bodies since they do not meet social standards of beauty, while others experience the joys of physical competition and accomplishment that are brought about by participating in widely practiced games. This brief discussion illustrates that the image that one has of one's body is a synthesis of perceptual experience, beliefs about the nature of one's body, and emotional responses.In 1911 Head and Holmes defined the body schema as the postural model of the body.3 In this account, the body schema functions by continually comparing the body's present posture to those held in the immediate past. That is, at the preconscious level, the schema provides a standard against which changes in posture can be judged. It must be stressed that the body schema functions below the surface of consciousness and, unlike the body image, does not include perceptions, attitudes, or beliefs about the body and is consequently not subject to cultural influence. Gallagher notes that the body schema "is a system of sensory-motor... (shrink)

Current cultural cosmopolitanism is portrayed in this paper as residing in the bodies of individuals around the world in the form of nondeclarative personal culture, stored as types of internalized embodied knowledge acquired through engagements with globally circulating products, artefacts, devices and gadgets. These types of knowledge exist as mental schemata, motor skills, sensory knowledge and informative data, and are habitually and routinely enacted in everyday life practices. The first two sections of the paper outline a perspective on cultural (...) cosmopolitanism and the notion of nondeclarative personal culture. The second part of the paper looks at cosmopolitan habits, focusing on three essential everyday life practices – musicking, eating, getting dressed – and discussing them as cases exemplifying current cultural cosmopolitanism. (shrink)

The growing abundance of medical technologies has led to laments over doctors’ sensory de-skilling, technologies viewed as replacing diagnosis based on sensory acumen. The technique of percussion has become emblematic of the kinds of skills considered lost. While disappearing from wards, percussion is still taught in medical schools. By ethnographically following how percussion is taught to and learned by students, this article considers the kinds of bodies configured through this multisensory practice. I suggest that three kinds of bodies arise: skilled (...) bodies; affected bodies; and resonating bodies. As these bodies are crafted, I argue that boundaries between bodies of novices and bodies they learn from blur. Attending to an overlooked dimension of bodily configurations in medicine, self-perception, I show that learning percussion functions not only to perpetuate diagnostic craft skills but also as a way of knowing of, and through, the resource always at hand; one’s own living breathing body. (shrink)

Virtue ethicists often appeal to practical skill as a way of understanding the nature of virtue. An important commitment of a skill account of virtue is that virtue is learned through practice and not through study, memorization, or reflection alone. In what follows, I will argue that virtue ethicists have only given us half the story. In particular, in focusing on outputs, or on the right actions or responses to moral situations, virtue ethicists have overlooked a crucial facet (...) of virtue: namely, that through practice, virtuous agents develop a cache of perceptual skills that allow them to attend to, detect, and identify the relevant features of a perceptual array, the selection of which is central to recognizing and categorizing a situation as a moral situation of a particular type. In order to support this claim, I will appeal to empirical studies of motor expertise, which show that an expert's capacity to attend to and recognize relevant perceptual inputs differs in important respects from the layperson's. Specifically, I will argue that performing the right action in the right circumstances improves an agent's ability to attend to and identify the morally relevant features of a moral situation. (shrink)