A sense of agency (SoA) is the experience of subjective awareness regarding the control of one’s actions. Humans have a natural tendency to generate prediction models of the environment and adapt their models according to changes in the environment. The SoA is associated with the degree of the adaptation of the prediction models, e.g., insufficient adaptation causes low predictability and lowers the SoA over the environment. Thus, identifying the mechanisms behind the adaptation process of a prediction model related to the (...) SoA is essential for understanding the generative process of the SoA. In the first half of the current study, we constructed a mathematical model in which the SoA represents a likelihood value for a given observation (sensory feedback) in a prediction model of the environment and in which the prediction model is updated according to the likelihood value. From our mathematical model, we theoretically derived a testable hypothesis that the prediction model is updated according to a Bayesian rule or a stochastic gradient. In the second half of our study, we focused on the experimental examination of this hypothesis. In our experiment, human subjects were repeatedly asked to observe a moving square on a computer screen and press a button after a beep sound. The button press resulted in an abrupt jump of the moving square on the screen. Experiencing the various stochastic time intervals between the action execution button-press) and the consequent event square jumping caused gradual changes in the subjects' degree of their SoA. By comparing the above theoretical hypothesis with the experimental results, we concluded that the update (adaptation) rule of the prediction model based on the SoA is better described by a Bayesian update than by a stochastic gradient descent. (shrink)

Haptic-based vibrotactile biofeedback (BF) is a promising technique to improve rehabilitation of balance in stroke patients. However, the extent to which BF training changes temporal structure of the center of pressure (CoP) trajectories remains unknown. This study aimed to investigate the effect of vibrotactile BF training on the temporal structure of CoP during quiet stance in chronic stroke patients using detrended fluctuation analysis (DFA). Nine chronic stroke patients (age; 81.56±44 months post-stroke) received a balance training regimen using a vibrotactile BF (...) system twice a week over four weeks. A Wii Balance board was used to record five 30 s trials of quiet stance pre- and post-training at 50 Hz. DFA revealed presence of two linear scaling regions in CoP indicating presence of fast- and slow-scale fluctuations. Averaged across all trials, fast-scale fluctuations showed persistent dynamics ( = 1.05 ±.08 for ML and  = 0.99 ±.17 for AP) and slow-scale fluctuations were anti-persistent ( = 0.35 ±.05 for ML and  = 0.32 ±.05 for AP). The slow-scale dynamics of ML CoP in stroke patients decreased from pre-training to post-BF training ( = 0.40 ±.13 vs. 0.31 ±.09). These results suggest that the vibrotactile BF training affects postural control strategy used by chronic stroke patients in the ML direction. Results of the DFA are further discussed in the context of balance training using vibrotactile BF and interpreted from the perspective of intermittent control of upright stance. (shrink)

Emotion modulates our time perception. So far, the relationship between emotion and time perception has been examined with visible emotional stimuli. The present study investigated whether invisible emotional stimuli affected time perception. Using continuous flash suppression, which is a kind of dynamic interocular masking, supra-threshold emotional pictures were masked or unmasked depending on whether the retinal position of continuous flashes on one eye was consistent with that of the pictures on the other eye. Observers were asked to reproduce the perceived (...) duration of a frame stimulus that was concurrently presented with a masked or unmasked emotional picture. As a result, negative emotional stimuli elongated the perceived duration of the frame stimulus in comparison with positive and neutral emotional stimuli, regardless of the visibility of emotional pictures. These results suggest that negative emotion unconsciously accelerates an internal clock, altering time perception. (shrink)

In 2008, researchers created human three-dimensional neural tissue – known as the pioneering work of “brain organoids.” In recent years, some researchers have transplanted human brain organoids into animal brains for applicational purposes. With these experiments have come many ethical concerns. It is thus an urgent task to clarify what is ethically permissible and impermissible in brain organoid research. This paper seeks (1) to sort out the ethical issues related to brain organoid research and application and (2) to propose future (...) directions for additional ethical consideration and policy debates in the field. Toward (1), this paper first outlines the current state of brain organoid research, and then briefly responds to previously raised related ethical concerns. Looking next at anticipated scientific developments in brain organoid research, we will discuss (i) ethical issues related to in vitro brain organoids, (ii) ethical issues raised when brain organoids form complexes or have relationships with other entities, and (iii) ethical issues of research ethics and governance. Finally, in pursuit of (2), we propose research policies that are mindful of the ethics of brain organoid research and application and also suggest the need for an international framework for research and application of brain organoids. (shrink)

This paper applies Dehornoy et al.’s Z theorem and its variant, called the compositional Z theorem, to prove confluence of Parigot’s \-calculi extended by the simplification rules. First, it is proved that Baba et al.’s modified complete developments for the call-by-name and the call-by-value variants of the \-calculus with the renaming rule, which is one of the simplification rules, satisfy the Z property. It gives new confluence proofs for them by the Z theorem. Secondly, it is shown that the compositional (...) Z theorem can be applied to prove confluence of the call-by-name and the call-by-value \-calculi with both simplification rules, the renaming and the \-rules, whereas it is hard to apply the ordinary parallel reduction technique or the original Z theorem by one-pass definition of mappings for these variants. (shrink)

Research in the U.S. developed and validated the State Self-Compassion Scale, which measures self-compassionate reactions toward a specific negative event. The current study is aimed at developing the Japanese version of the State Self-Compassion Scale and extending previous findings in the U.S. by showing measurement invariance across sexes and demonstrating the construct validity of this scale. Across two studies, the bifactor exploratory structural equation modeling representation of the SSCS-J showed excellent fit in which a single global factor and most of (...) the specific factors were well defined. Study 1 further provided evidence for the measurement invariance across sexes. The SSCS-J was related with higher trait self-compassion and lower fear of and negative beliefs about self-compassion. In Study 2, participants who were instructed to be self-compassionate reported higher scores in the SSCS-J relative to those in the control condition. These results attest to the replicability of the factor structure of the SSCS in Japan and provide further evidence for the construct validity of this scale. (shrink)

Finding truthmakers for negative truths has been a problem in philosophy for a long time. I will present and discuss the solution to this problem offered by Bertrand Russell, Raphael Demos, D. M. Armstrong, and myself. I will argue that some negative truths do not require truthmakers and that truthmakers for the other negative truths are the entities that these negative truths imply exist. I will also argue that truthmakers for general truths of the form, only X, Y, Z, and (...) etc. are F's, are the sum of each X, Y, Z, and etc.'s being F, and hence that sometimes truthmakers do not necessitate truths. (shrink)

The emerging critique of alternative food networks (AFNs) points to several factors that could impede the participation of low-income, minority communities in the movement, namely, spatial and temporal constraints, and the lack of economic, cultural, and human capital. Based on a semi-experimental study that offers 6 weeks of free produce to 31 low-income African American households located in a New Orleans food desert, this article empirically examines the significance of the impeding factors identified by previous scholarship, through participant surveys before, (...) during, and after the program. Our results suggest economic constraints are more influential in determining where the participants shop for food than spatial and temporal constraints, and the study participants exhibit high levels of human and cultural capital regarding the purchase and consumption of locally grown produce. We also find them undeterred by the market’s predominantly White, middle-class cultural social space, which leads us to question the extent to which cultural exclusivity discourages their participation in AFNs. For all five factors we find that the constraints posed to accessing the local food market were not universal but varied among the participants. Finally, the study reveals some localized social constraints, fragmented social ties in particular, as a possible structural hurdle to engaging these residents in the alternative market in their neighborhood. Conclusions point to the need for a multi-dimensional and dynamic conceptualization of “food access.”. (shrink)

Pupil contagion is the phenomenon in which an observer’s pupil-diameter changes in response to another person’s pupil. Even chimpanzees and infants in early development stages show pupil contagion. This study investigated whether dynamic changes in pupil diameter would induce changes in infants’ pupil diameter. We also investigated pupil contagion in the context of different faces. We measured the pupil-diameter of 50 five- to six-month-old infants in response to changes in the pupil diameter of upright and inverted faces. The results showed (...) that in the upright presentation condition, dilating the pupil diameter induced a change in the infants’ pupil diameter while constricting the pupil diameter did not induce a change, and pupil contagion occurred only in the upright face presentation, and not in the inverted face presentation. These results indicate the face-inversion effect in infants’ pupil contagion. (shrink)

Why has right-wing activism in Japan, despite its persistence throughout the postwar era, only gained significant traction recently? Focusing on the Zaitokukai, an anti-Korean movement in Japan, this article demonstrates how the new Far Right were able to popularize formerly stigmatized right-wing ideas. The Zaitokukai represents a political group distinct from the traditional right and reflective of new Far Right movements spreading worldwide. In Japan, concerns about the growing influence of South Korea and China in the 1980s as well as (...) the decline of left-wing norms opened up a discursive opportunity for the new Far Right. By framing Korean postcolonial minorities as undeserving recipients of social welfare benefits, the Zaitokukai mobilized perceptions of threat that has continued to powerfully influence public perceptions of Koreans even following the group’s organizational decline. While past research has focused on the new Far Right’s political influence, this article stresses their roles as ideological entrepreneurs. (shrink)

The human ability to flexibly discover alternatives without fixating on a known solution supports a variety of human creative activities. Previous research has shown that people who discover an alternative procedure relax their attentional bias to information regarding the known solutions just prior to the discovery. This study examined whether the difference in the distribution of attention between the finders and non-finders of the alternative procedure is observed from the phase of solving the problem using the trained procedure. We evaluated (...) the characteristics of the finders' distribution of attention in situations where problem solving using a trained procedure was successful. This aspect has been little examined in previous research. Our study obtained empirical evidence for the fact that, compared to non-finders, finders pay more attention to information unrelated to the trained procedure acquired through knowledge and experience, even time when using a trained procedure. We also confirmed that this difference does not exist from the beginning of the task, but emerges during repeated use of familiar procedures. These findings indicate that in order to find an alternative procedure, one should not only divert attention from a familiar procedure just before the discovery but also pay a certain amount of attention to information unrelated to the familiar procedure even when the familiar procedure is functioning well. (shrink)

This paper focuses on a water management project in the remote Aboriginal community of Milingimbi, Northern Australia. Drawing on materials and experiences from two distinct stages of this project, we revisit a policy report and engage in ethnographic storytelling in order to highlight a series of sensing practices associated with water management. In the former, a working symmetry between Yolngu and Western water knowledges is actively sought through the practices of the project. However, in the latter, recurrent asymmetries in the (...) research work continue to appear: a bilingual diagram of water usage is displayed but produces confusion; measuring a water hole for salinity, a member of the scientific team throws in a water meter, while a Yolngu elder prefers the telling of an ancestral story; a collaborative 3-D mapping exercise invites participation from community members but struggles to develop an outcome that differs from existing maps used by scientists and government staff. Focusing on these moments as subtle points of rupture, we suggest that attending to “seeing,” “telling,” and “mapping” in both stages of this water management project offers a way to explore the political work of crafting climate futures and beginning to interrogate differing means for “doing difference” within them. (shrink)

BackgroundFinancial interactions between pharmaceutical companies and physicians lead to conflicts of interest. This study examines the extent and trends of non-research payments made by pharmaceutical companies to board-certified allergists in Japan between 2016 and 2020.MethodsA retrospective analysis of disclosed payment data from pharmaceutical companies affiliated with the Japanese Pharmaceutical Manufacturers Association was conducted. The study focused on non-research payments for lecturing, consulting, and manuscript drafting made to board-certified allergists from 2016 to 2020. We performed descriptive analyses on payment data. Trends (...) were analyzed using generalized estimating equation models.ResultsOf the 3,943 board-certified allergists, 2,398 (60.8%) received non-research payments totaling $43.4 million over five years. Lecturing fees comprised 85.7% ($37.2 million) of the total payment amounts. For allergists who received at least one payment, the median amount per allergist was $3,106 (interquartile range: $966 – $12,124), in contrast to a mean of $18,092 (standard deviation: $49,233) over the five-year span. The top 1% and 10% of these allergists accounted for 20.8% and 68.8% of all non-research payments, respectively. The annual payment amounts significantly increased by 7.2% annual increase (95% CI: 4.4 – 10.0%, p < 0.001) each year until 2019, but saw a significant decrease in 2020 amid the COVID-19 pandemic.ConclusionThe majority of allergists received non-research payments, with a notable concentration among a small group. Payments increased annually until the pandemic’s onset, which coincided with a substantial decrease. Further research is needed to explore the implications of these financial interactions on clinical practice and patient care in Japan. (shrink)

In their target article, Peterson et al. discuss the intriguing prospect of using psychedelics as a treatment for patients with Alzheimer’s Disease and Related Dementias (AD/ADRD) (Peterson et al....

The so-called Buddhist momentarists, such as Dharmakīrti and his followers, defend the momentariness of all things. However, with equal force they also defend the persistence of all things, not just within a single lifetime but over an indefinite cycle of rebirth. Naturally, they have an interesting theory of persistence, according to which things persist without being self-identical over time. The theory is best presented in the Lokāyatāparīkṣā chapter of Śāntarakṣita’s Tattvasaṃgraha and Kamalaśīla’s Paṅjikā, as they clearly articulate the criteria of (...) persistence without identity. The purpose of this paper is to formulate a Buddhist theory of persistence through the analysis of these texts. Here is the basic formula: Things persist as series, which is constituted by momentary entities that are causally related as upādāna and upādeya. Upādāna causal relation is demarcated from other causal relations by the principle of changeability with temporal restriction, and the principle adopts further qualifications to accommodate complex cases and personal persistence. I have addressed a problem that contemporary physicalism might pose a threat to the Buddhist account of personal persistence, and argued that the problem can be evaded by regarding persons as psycho-physical entities rather than strictly non-physical. In its general outlook, the Buddhist theory of persistence is close to Theodore Sider’s stage theory in that persistence is a matter of distinct individuals standing in a special causal relationship. As regards personal persistence, the Buddhist has a stricter condition than Parfit’s IDM thesis, which states that psychological connectedness with any cause is what matters for survival. The Buddhist would say it is moral connectedness with a special cause called upādāna. (shrink)

The present study examines the interactional phenomenon of enactment, wherein conversation participants act out themselves or others by utilizing both linguistic and non-linguistic resources and demonstrate certain ideas rather than describe them. While past research has revealed that people, based on their first- or second-hand experiences, frequently use enactment during storytelling activities to depict what story characters said and/or did, this article explores cases in which participants in Japanese conversations enact based on what co-participants have experienced. In such cases, producers (...) of enactment are recipients of the enacted information provided by co-participants. This study refers to interactants who originally provide certain information as “tellers,” and it refers to interactants who enact the received information as “recipients”. Employing Conversation Analysis as an analytical framework, the present study investigates how recipients’ enactments are utilized as a resource to demonstrate their understanding of information given at the moment of their interaction in Japanese. (shrink)

法実証主義の現代的展開として法多元主義を位置づけるとともに、社会保障と自衛官合祀訴訟という個別の題材、さらに、組織論にもアプローチ。グローバル化がもたらす国家法と非国家法が交錯する世界を読み解く法理論 。.

The aim of this paper is to examine the role of imagination in environmental ethics and introduce an imaginative dimension as an essential part of environmental ethics. Imagination constitutes a basic condition for ethical thinking and action. Matters of environmental ethics have revealed the indispensable role of imagination in ethics. I’ll advance an imagination-based environmental ethics by developing Hans Jonas’ ethical thought. From his viewpoint, various effects of our action on nature and future generations, generally out of our sight, have (...) become an ethical concern. This necessitates the exercise of imagination because we must “imagine” those distant effects to act in an environmentally responsible way. Jonas’ “heuristics of fear” is an imaginative approach necessary for responsible action. Further, I reinterpret the role of imagination as motivating our “will to know.” In conclusion, I suggest the importance of environmental education as cultivating ecological imagination from the standpoint of environmental ethics. (shrink)

Freezing of gait is a common symptom in the late stages of Parkinson’s disease and related disorders. Videos are the gold standard method to conduct FOG scoring; however, the measurement accuracy of FOG scoring based on videos has not been formally assessed, despite its use in previous studies. This study aimed to calculate the measurement accuracy of video-based FOG scoring. Three evaluators scored the FOG based on 157 video data points collected from 21 patients using an annotation tool. One evaluator (...) measured the intra-rater reliability of the retest. The total duration of observed FOG, percentage of the time spent with FOG during the walking task, and FOG phenotypes were evaluated. Intraclass correlation coefficients were used to determine the intra- and inter-rater reliabilities. The duration of FOG and %FOG showed good measurement accuracy for both intra-rater and inter-rater reliabilities. However, the FOG phenotypes showed poor measurement accuracy in inter-rater reliability. These results indicate that the temporal characteristics of FOG can be scored with a high degree of measurement accuracy, even with different evaluators; conversely, the FOG phenotypes need to be scored by several evaluators. (shrink)

This study examined whether 8-month-old infants’ hemodynamic responses in the temporal region were modulated by repeated presentation of “Peekaboo” by using functional near-infrared spectroscopy. Previous studies have shown that infants’ temporal region responds to faces. A recent electroencephalography study showed that the neural activity of infants was modulated by repeated presentation of “Peekaboo.” Some fNIRS studies also revealed that the movie of “Peekaboo” activated the hemodynamic response of the temporal region in infancy. However, no studies have shown the hemodynamic modulation (...) of the temporal region according to the repeated presentation of “Peekaboo” in infants. In order to examine whether the hemodynamic responses of the temporal region were modulated by repeated presentation of “Peekaboo,” we compared the activity of the temporal region between the early and late trials. We set long and short delays before face-presentation. The results showed that the concentration of oxy-hemoglobin in the right occipitotemporal region in both conditions increased after the presentation of “Peekaboo” relative to the baseline. Moreover, in the long delay condition, the hemodynamic modulation of the right occipitotemporal region was induced according to the repeated presentation of “Peekaboo” in infants. (shrink)

An emerging concept is that quiescent mature skeletal cells provide an important cellular source for bone regeneration. It has long been considered that a small number of resident skeletal stem cells are solely responsible for the remarkable regenerative capacity of adult bones. However, recent in vivo lineage‐tracing studies suggest that all stages of skeletal lineage cells, including dormant pre‐adipocyte‐like stromal cells in the marrow, osteoblast precursor cells on the bone surface and other stem and progenitor cells, are concomitantly recruited to (...) the injury site and collectively participate in regeneration of the damaged skeletal structure. Lineage plasticity appears to play an important role in this process, by which mature skeletal cells can transform their identities into skeletal stem cell‐like cells in response to injury. These highly malleable, long‐living mature skeletal cells, readily available throughout postnatal life, might represent an ideal cellular resource that can be exploited for regenerative medicine. (shrink)

In recent decades, Asian subsidiaries of Japanese manufacturing multi-national enterprises (MNEs) have faced heightened competitions from local firms to underscore the strategic importance of developing competent “host country nationals” (HCNs) to overcome their liability of foreignness. In addition, in recent literature on global MNEs, the importance of “boundary spanners” (BSs) has been pointed out in facilitating knowledge sharing across intra-organizational boundaries. Given these discussions, this study focuses on an interesting contingent relationship in the role of BSs observed in author’s interviews. (...) i.e., In cases of “bad BSs,” “knowledge appropriation” can take place where newly promoted HCNs would monopolize their knowledge and information, and the mitigating processes of notion gap problem in grey areas management are heavily stagnated. Whereas in cases of “good BSs,” “knowledge sharing” would take place where newly promoted HCNs would be willing to share them with other members, and the mitigating processes of the notion gap problem are steadily progressed. The study proposes a framework illustrating conditions under which HCNs choose knowledge sharing over appropriation. The analysis identifies two key factors influencing this choice: dependence on personal skills and prospects for growth opportunities. The findings suggest a dynamic relationship where knowledge sharing leads to effective control and efficient knowledge transfer, fostering virtuous cycles, while knowledge appropriation results in inefficiencies, creating vicious cycles. The study calls for further research on dynamic aspects of this contingent relationship and suggests practical strategies for shifting from knowledge appropriation to sharing, thereby enhancing organizational performance in foreign subsidiaries. (shrink)

The Nature of Liberty trilogy presents an ethical case for individual liberty, arguing from the philosophy of Ayn Rand and citing the findings of evolutionary psychology to demonstrate the compatibility between human nature and laissez-faire liberty. The first installment, The Freedom of Peaceful Action, makes the philosophic case that an approach starting from observational reason will indicate the practicality and ethical desirability of a free-market system based on rights.

The standing screens on the title is the oldest work extant of KANO Motonobu's work as folding screens of thick colored flowers and birds with golden background. This thesis designates that the scenery and the motif of the work are in correspondence with both descriptions of the scenery of Pure Land in several Buddhist scriptures and the design of actual gardens. Firstly, a peacock on the right hand screen is focused to indicate the bird connotes the elements of auspicious birds (...) in Buddhism, such as Mahamayuri and Kalavinka.Secondly, the elements of the scenery in the work, such as the four seasons at the same time ∼ the depiction of perpetuity ∼ and the existence of a pond, are identified with the description of Pure Land in Kwan-mu-liang-shou-ching and Ta-wuliang-shou-ching. These elements of the garden in the work are placed similarly to the Pure Land style gardens, which are illustrated in "Center and Surrounds of Kyoto" 's. In consideration of the above factors, the conclusion that, in the work, KANO Motonobu succeeded to portray the ideal garden by combining the scenery of Pure Land and that of actual gardens, is drawn. (shrink)

Endosteal stem cells are a subclass of bone marrow skeletal stem cell populations that are particularly important for rapid bone formation occurring in growth and regeneration. These stem cells are strategically located near the bone surface in a specialized microenvironment of the endosteal niche. These stem cells are abundant in young stages but eventually depleted and replaced by other stem cell types residing in a non‐endosteal perisinusoidal niche. Single‐cell molecular profiling and in vivo cell lineage analyses play key roles in (...) discovering endosteal stem cells. Importantly, endosteal stem cells can transform into bone tumor‐making cells when deleterious mutations occur in tumor suppressor genes. The emerging hypothesis is that osteoblast‐chondrocyte transitional identities confer a special subset of endosteal stromal cells with stem cell‐like properties, which may make them susceptible for tumorigenic transformation. Endosteal stem cells are likely to represent an important therapeutic target of bone diseases caused by aberrant bone formation. (shrink)

In Western countries, the ideal professional and ethical attributes of healthcare providers and the ideal patient-doctor relationship have been analysed in detail. Other cultures, however, may have different norms, arising in response to diverse healthcare needs, cultural values and offering alternative perspectives. In this paper, drawing a case study, we introduce the concept of Shinmi, used in Japan to describe a desirable approach to medical care. Shinmi means kind or cordial in Japanese. In the medical context, it refers to doctors (...) treating patients with a degree of emotional closeness as if they were the doctors’ own family. We analyse the concept of Shinmi, drawing on virtue ethics. We distinguish two different elements to a Shinmi-na attitude. As illustrated in our example, excessive Shinmi can be problematic for patients and doctors. Furthermore, elements of Shinmi may conflict with existing Western values (for example, norms that encourage emotional detachment and discourage doctors’ treatment of family members). However, if pursued appropriately, we argue that a balanced Shinmi-na approach can be conducive to the goals of medicine. The concept of Shinmi may be valuable for medical students, in Japanese and potentially other health care systems, and help them to cultivate a virtuous approach to meeting the emotional needs of patients. (shrink)