Background: Depression is the largest cause of mental ill health worldwide. Although interventions such as Dance Movement Therapy (DMT) may offer interesting and acceptable treatment options, current clinical guidelines do not include these interventions in their recommendations mainly because of what is perceived as insufficient research evidence. The 2015 Cochrane review on DMT for depression includes only three RCTs leading to inconclusive results. It is therefore, necessary to also look beyond such designs in order to identify and assess the (...) range of current evidence. Methods: We therefore, conducted a systematic review of studies that aimed to explore the effectiveness in the use of DMT with people with depression. This led to a qualitative narrative synthesis followed by a subgroup analysis and a sensitivity analysis. In all meta-analyses a random effects model was used with Standardised Mean Differences (SMD) to accommodate for the heterogeneity of studies and outcome measures. Results: From the 817 studies reviewed, eight studies met our inclusion criteria. 351 people with depression (mild to severe) participated, 192 of whom attended DMT groups while receiving treatment as usual (TAU) and 159 received TAU only. Qualitative findings suggest there was a decrease in depression scores in favour of DMT groups in all studies. Subgroup analysis performed on depression scores before and three months after the completion of DMT groups suggested changes in favour of the DMT groups. When sensitivity analysis was performed, RCTs at high risk of bias were excluded, leaving only studies with adult clients up to the age of 65. In these studies, the highest effect size was found favouring DMT plus TAU for adults with depression, when compared to TAU only. Conclusions: Based on studies with moderate to high quality, we concluded that DMT is an effective intervention in the treatment of depression with adults. Furthermore, by drawing on a wide range of designs with diverse quality, we were able to compile a comprehensive picture of relevant trends. Despite the fact that there remains a paucity of high-quality studies, the results have relevance to both policy-making and clinical practice, and become a platform for further research. (shrink)

Although the Federal Common Rule requires that informed consent documents include all material information, it does not specify the content of materials used to recruit human subjects. In particular, there is no federal regulation relating to how payment for research participation is to be advertised. Rather, the FDA has issued guidance, advising researchers not to emphasize payment information. In order to determine how IRBs have interpreted this guidance, we coded the policies of the top 100 institutions by receipt of NIH (...) funding, in order to determine whether they require, permit, or forbid researchers to disclose the amount of compensation in their recruitment materials. We found that the vast majority of institutions implicitly or explicitly permit such disclosures; however, there are a significant number of IRBs at each extreme, some discouraging or forbidding with others encouraging or mandating such disclosures. Such heterogeneity in local regulations suggests that IRB discretion may be imposing costs on human subjects and the scientific enterprise that outweigh the benefits. We suggest that this heterogeneity should be resolved towards a national consensus on permissibility. (shrink)

Do academics who commercialize their inventions have a different professional character than those who do not? The author conducted a nationwide survey in Hungary including 1,562 academics of hard sciences from 14 universities. According to the cluster analysis based on their participation in research commercialization, university scholars can be divided into three distinct groups: ‘traditional faculty’, ‘market-oriented faculty’, and ‘academic entrepreneurs’. Traditional faculty members typically do not participate in RC, while, within the framework of the university, market-oriented academics are engaged (...) in RC the most frequently. Academic entrepreneurs, in addition to their university positions, work for spin-off firms that commercialize research findings. Multinomial logistic regressions revealed that university scientists in various engineering fields, and especially in chemical technology, as well as in biotechnology and pharmaceutics have a considerably greater potential to engage in RC, similar to scholars with industry work experience, high number of publications, and professorial rank. Discipline, work experience, scientific performance, and academic rank seem to outweigh the effect of the university and its location on RC behavior. These findings underscore the inherent diversity of the academic profession and question the necessity of implementing uniform RC policies such as the Bayh–Dole model across universities, disciplines, and segments of university scientists. (shrink)

The payment of human subjects is an area where Institutional Review Boards have wide discretion. Although the “Common Rule” requires the provision of full information to human research participants to secure valid consent, the Rule is silent on the issue of payment. Still, some federal agencies offer guidance on the matter. For example, the National Science Foundation cautions that high payments for risky research “may induce a needy participant to take a risk that they normally would prefer not to (...) take.” For research under its purview, the Food and Drug Administration guidance provides that “[a]dvertisements may state that subjects will be paid, but should not emphasize the payment or the amount to be paid, by such means as larger or bold type.” One might read the FDA guidance to permit the advertisement for human subjects to state the specific amount of payment, as long as it is not emphasized. (shrink)

Pregnancy presents some interesting challenges for the philosophy of embodied cognition. Mother and fetus are generally considered to be passive during pregnancy, both individually and in their relation. In this paper, we use the enactive operational concepts of autonomy, agency, individuation, and participation to examine the relation between mother and fetus in utero. Based on biological, physiological, and phenomenological research, we explore the emergence of agentive capacities in embryo and fetus, as well as how maternal agency changes as pregnancy advances. (...) We show that qualitatively different kinds of agency have their beginnings already in utero, and to what extent fetal and maternal movement modulate affectivity and individuation in pregnancy. We thus propose that mother and fetus are both agents who participate in pregnancy. Pregnancy then emerges as a relational developmental organization that anchors and holds its developing participants. We end the paper with reflections on ethical implications of this proposal, and suggestions for future research. (shrink)

This article examines the development of and contestation over the standards for certified fair trade, with particular attention to the U.S. context. It charts fair trade's rapid growth in the United States since the 1999 advent of formal certification, explores the controversies generated by the strategy of market mainstreaming in the sector, and focuses on five key issues that have generated particularly heated contention within the U.S. fair trade movement. It offers a theoretical framework based in the literatures on (...) agrifood systems, social movements, and public-choice economics, for understanding the corporate response to alternative markets such as fair trade. The article suggests a typology of responses by social movement actors to this increased corporate participation, and assesses the relevance of the U.S. case for the future prospects of fair trade, both in other national contexts and as an international movement. (shrink)

Many writers have commented on the heterogeneity of the socially responsible investment (SRI) movement. However, few have actually tried to understand and explain it, and even fewer have discussed whether the opposite – standardisation – is possible and desirable. In this article, we take a broader perspective on the issue of the heterogeneity of SRI. We distinguish between four levels on which heterogeneity can be found: the terminological, definitional, strategic and practical. Whilst there is much talk about the definitional (...) ambiguities of SRI, we suggest that there is actually some agreement on the definitional level. There are at least three explanations which we suggest can account for the heterogeneity on the other levels: cultural and ideological differences between different regions, differences in values, norms and ideology between various SRI stakeholders, and the market setting of SRI. Discussing the implications of the three explanations for the SRI market, we suggest that there is reason to be sceptical about the possibilities of standardisation if not standardisation is imposed top-down. Whether this kind of standardisation is desirable or not, we argue, depends on what the motives for it would be. To the extent that standardisation may facilitate the mainstreaming of SRI, it could be a good thing – but we entertain doubts about whether mainstreaming really requires standardisation. (shrink)

In science and environmental studies, there is a general concern for the democratization of the expert-lay interplay. However, the democratization of expertise does not necessarily lead to more sustainable decisions. If citizens do not take the sustainable choice, what should experts and decision makers do? Should the expert-lay interplay be dissolved? In thinking about how to shape the expert-lay interplay in a better way in agro-biodiversity conservation, I take the case of the MST (Movimento Sem Terra/Landless People’s Movement), possibly (...) the largest rural movement in Latin America. The MST is in a process of turning towards environmentalism. It has adopted agroecology, a democratically oriented knowledge field. However, not all of the farmers were willing to adopt new environmentalist ideas and practices. Through ethnographic research, I analyze how expertise was recognized and redistributed within the MST, attending particularly to the role of MST coordinators and technicians. I explore how participation was framed and put into action. The adoption of agroecology brought to the MST a new and more inclusive map of expertise, but it also influenced new social distinctions within the communities. In part, farmers’ knowledge was labeled as ignorance. This may close down possibilities for dialogue as well as for sustainability. The paper suggests that experts’ power for discriminating among lay knowledges should come together with a responsibility for opening spaces for dialogue and action. One way of doing so could be by adding “interactional reflexivity” to experts’ expertise. (shrink)

Corporate social responsibility movement against labor abuses has gained momentum globally since the 1990s when many corporations adopted codes of conduct to regulate labor practices in their global supply chains. However, workers' participation in the process is relatively weak until very recently, when new worker empowerment programs are increasingly initiated. Using conceptual tool created by stakeholder theorists, this article examines dynamics and performance of worker participation in implementation process of codes of conduct through a case study of CSR practices (...) of Reebok at one of its footwear supplier factories in south China. Empirical data was collected during 2002-2005 through participant observation, in-depth interviews, and document reviews. (shrink)

This article shows how activists in the open data movement re-articulate notions of democracy, participation, and journalism by applying practices and values from open source culture to the creation and use of data. Focusing on the Open Knowledge Foundation Germany and drawing from a combination of interviews and content analysis, it argues that this process leads activists to develop new rationalities around datafication that can support the agency of datafied publics. Three modulations of open source are identified: First, by (...) regarding data as a prerequisite for generating knowledge, activists transform the sharing of source code to include the sharing of raw data. Sharing raw data should break the interpretative monopoly of governments and would allow people to make their own interpretation of data about public issues. Second, activists connect this idea to an open and flexible form of representative democracy by applying the open source model of participation to political participation. Third, activists acknowledge that intermediaries are necessary to make raw data accessible to the public. This leads them to an interest in transforming journalism to become an intermediary in this sense. At the same time, they try to act as intermediaries themselves and develop civic technologies to put their ideas into practice. The article concludes with suggesting that the practices and ideas of open data activists are relevant because they illustrate the connection between datafication and open source culture and help to understand how datafication might support the agency of publics and actors outside big government and big business. (shrink)

Here, we propose that the heterogeneity of mutational types in populations underpins alternative pathways of evolutionary adaptation. Point mutations, deletions, insertions, transpositions and duplications cause different biological effects and provide distinct adaptive possibilities. Experimental evidence for this notion comes from the mutational origins of adaptive radiations in large, clonal bacterial populations. Independent sympatric lineages with different phenotypes arise from distinct genetic events including gene duplication, different insertion sequence movements and several independent point mutations. The breadth of the mutational spectrum in (...) the ancestral population should be viewed as a form of bet‐hedging, reducing the risk of evolutionary dead ends and complementing the phenotypic and epigenetic heterogeneities that improve the survival capabilities of a population. Different mutational events arise from distinct cellular processes and are subject to separate environmental impacts, so the availability of any particular type of mutation may constrain or promote adaptive pathways in populations. (shrink)

One of the most urgent debates of our time is about the exact role that new technologies can and should play in our societies and particularly in our public decision-making processes. This paper is a first attempt to introduce the idea of CrowdLaw, defined as online public participation leveraging new technologies to tap into diverse sources of information, judgments and expertise at each stage of the law and policymaking cycle to improve the quality as well as the legitimacy of the (...) resulting laws and policies. First, we explain why CrowdLaw differs from many previous forms of political participation. Second,we reproduce and explain the CrowdLaw Manifesto that the rising CrowdLaw community has elaborated to foster such approaches around the world. Lastly, we introduce some preliminary considerations on the notions of justice, legitimacy and quality of lawmaking and public decision-making, which are central to the idea of CrowdLaw. (shrink)

This article focuses on the ways gendered experiences varied by race with regard to women's recruitment and participation in the civil rights movement of Mississippi. The author analyzes 13 interviews with both African American and white women who were connected to the movement. By privileging the voices of movement actors, this study begins to illuminate the ways recruitment and participation varied by race. Three types of women's participation are distinguished: high-risk activism, low-risk institutional, and activist mothering and (...) “women's work.” Explanations for these different forms of participation are found in examining two primary patterns of recruitment. (shrink)

Corporate social responsibility (CSR) movement against labor abuses has gained momentum globally since the 1990s when many corporations adopted codes of conduct to regulate labor practices in their global supply chains. However, workers' participation in the process is relatively weak until very recently, when new worker empowerment programs are increasingly initiated. Using conceptual tool created by stakeholder theorists, this article examines dynamics and performance of worker participation in implementation process of codes of conduct through a case study of CSR (...) practices of Reebok at one of its footwear supplier factories in south China. Empirical data was collected during 2002-2005 through participant observation, in-depth interviews, and document reviews. (shrink)

BackgroundFried physical frailty, with mobility frailty and non-motor frailty phenotypes, is a heterogeneous syndrome. The coexistence of the two phenotypes and cognitive impairment is referred to as cognitive frailty. It remains unknown whether frailty phenotype has a different association with hearing loss and tinnitus.MethodsOf the 5,328 community-dwelling older adults, 429 participants aged ≥58 years were enrolled in the study. The participants were divided into robust, mobility, and non-mobility frailty, mobility and non-mobility CF, and cognitive decline [subdivided into (...) mild cognitive impairment and pre-MCI] groups. The severity and presentations of HL and/or tinnitus were used as dependent variables in the multivariate logistic or nominal regression analyses with forward elimination adjusted for frailty phenotype stratifications and other covariates.ResultsPatients with physical frailty or who are robust were found to have lower probability of developing severe HL and tinnitus, and presented HL and/or tinnitus than those with only cognitive decline, or CF. Patients with RCF and non-mobility RCF had higher probability with less HL and tinnitus, and the presentation of HL and/or tinnitus than those with PRCF and mobility RCF. Other confounders, age, cognitive and social function, cardiovascular disease, depression, and body mass index, independently mediated the severity of HL and tinnitus, and presented HL and/or tinnitus.ConclusionFrailty phenotypes have divergent association with HL and tinnitus. Further research is required to understand the differential mechanisms and the personalized intervention of HL and tinnitus.Clinical Trial RegistrationClinicalTrials.gov identifier, NCT2017K020. (shrink)

In order to understand ongoing activity, observers segment it into meaningful temporal parts. Segmentation can be based on bottom‐up processing of distinctive sensory characteristics, such as movement features. Segmentation may also be affected by top‐down effects of knowledge structures, including information about actors' intentions. Three experiments investigated the role of movement features and intentions in perceptual event segmentation, using simple animations. In all conditions, movement features significantly predicted where participants segmented. This relationship was stronger when (...) class='Hi'>participants identified larger units than when they identified smaller units, and stronger when the animations were generated randomly than when they were generated by goal‐directed human activity. This pattern suggests that bottom‐up processing played an important role in segmentation of these stimuli, but that this was modulated by top‐down influence of knowledge structures. To describe accurately how observers perceive ongoing activity, one must account for the effects of distinctive sensory characteristics, the effects of knowledge structures, and their interactions. (shrink)

The aim of the study was to explore heterogeneity of change in state affect following the introduction of insulin therapy in patients with type 2 diabetes. State affect was assessed twice among 305 patients: just before the introduction of insulin therapy and at 1-month follow-up. Latent class growth modeling showed that negative affect increased in 78% of the sample, whereas positive affect improved in only 17% of the participants. On the basis of cross-tabulation of these changes a 4-class model (...) of emotional response to the new treatment was obtained. The largest subgroup of participants manifested “threat response”, i.e. moderate-stable PA with increase in NA. Participants in the “challenge response” subgroup showed increases in both NA and PA. The third class characterized by “no response”, had low-stable NA and moderate-stable PA. The smallest “stress response” subgroup showed increase in NA and high-stable PA. Gender, age and education level were significant covariates of group membership. Thus, the findings revealed heterogeneous emotional response to the new treatment, which may be of clinical relevance for improving diabetic patients’ adjustment through a more individual, person-centered approach. (shrink)

In two pre-registered online studies during the COVID-19 pandemic and the early 2020 lockdown (one of which with a UK representative sample) we elicit risk-tolerance for 1,254 UK residents using four of the most widely applied risk-taking tasks in behavioral economics and psychology. Specifically, participants completed the incentive-compatible Balloon Analog Risk Task (BART) and the Binswanger-Eckel-Grossman (BEG) multiple lotteries task, as well as the Domain-Specific Risk-Taking Task (DOSPERT) and the self-reported questions for risk-taking used in the German Socio-economic Panel (...) (SOEP) study. In addition, participants in the UK representative sample answered a range of questions about COVID-19-related risky behaviors selected from the UCL COVID-19 Social Survey and the ICL-YouGov survey on COVID-19 behaviors. Consistently with pre-COVID-19 times, we find that risk tolerance during the UK lockdown (i) was higher in men than in women and (ii) decreased with age. Undocumented in pre-COVID-19 times, we find some evidence for healthier participants displaying significantly higher risk-tolerance for self-reported risk measures. We find no systematic nor robust patterns of association between the COVID-19 risky behaviors and the four risk-taking tasks in our study. Moreover, we find no evidence in support of the so-called “risk compensation” hypothesis. If anything, it appears that participants who took greater risk in real-life COVID-19-relevant risky behaviors (e.g., isolating or taking precautions) also exhibited higher risk-tolerance in our experimental and self-reported risk-taking measures. (shrink)

Differences in the ability of students to judge images can be assessed by analyzing the individual preference order of images. To gain insights into potential heterogeneity in judgement of visual abstraction among students, we combine Bradley–Terry preference modeling and model-based recursive partitioning. In an experiment a sample of 1,020 high-school students ranked five sets of images, three of which with respect to their level of visual abstraction. Additionally, 24 art experts and 25 novices were given the same task, while their (...) eye movements were recorded. Results show that time spent on the task, the students’ age, and self-reported interest in visual puzzles had significant influence on rankings. Fixation time of experts and novices revealed that both groups paid more attention to ambiguous images. The presented approach makes the underlying latent scale of visual judgments quantifiable. (shrink)

The neurodiversity paradigm is presented by its proponents as providing a philosophical foundation for the activism of the neurodiversity movement. Its central claims are that autism and other neurodivergent conditions are not disorders because they are not intrinsically harmful, and that they are valuable, natural and/or normal parts of human neurocognitive variation. This paper: (a) identifies the non‐disorder claim as the most central of these, based on its prominence in the literature and connections with the practical policy claims that (...) the paradigm is supposed to support; (b) describes the heterogeneity of autism at the behavioural and causal levels, and argues that at the behavioural level this encompasses ways of being autistic that are harmful in ways that cannot be not wholly attributed to discrimination or unjust social arrangements, challenging the claim that autism is not a disorder; (c) considers and rejects responses to this challenge based on separation of high‐ and low‐functioning autism, separation of autism from co‐occurring conditions, and viewing autism as part of an individual’s identity. Two of these responses fail for reasons that are themselves connected with the behavioural and/or causal heterogeneity of autism. (shrink)

In two experiments, participants solved anagram problems while their eye movements were monitored. Each problem consisted of a circular array of five letters: a scrambled four-letter solution word containing three consonants and one vowel, and an additional randomly-placed distractor consonant. Viewing times on the distractor consonant compared to the solution consonants provided an online measure of knowledge of the solution. Viewing times on the distractor consonant and the solution consonants were indistinguishable early in the trial. In contrast, several seconds (...) prior to the response, viewing times on the distractor consonant decreased in a gradual manner compared to viewing times on the solution consonants. Importantly, this pattern was obtained across both trials in which participants reported the subjective experience of insight and trials in which they did not. These findings are consistent with the availability of partial knowledge of the solution prior to such information being accessible to subjective phenomenal awareness. (shrink)

The effect of concurrent movement on incidental versus intentional statistical learning was examined in two experiments. In Experiment 1, participants learned the statistical regularities embedded within familiarization stimuli implicitly, whereas in Experiment 2 they were made aware of the embedded regularities and were instructed explicitly to learn these regularities. Experiment 1 demonstrated that while the control group were able to learn the statistical regularities, the resistance-free cycling group and the exercise group did not demonstrate learning. This is in (...) contrast with the findings of Experiment 2, where all three groups demonstrated significant levels of learning. The results suggest that the movement demands, rather than the physiological stress, interfered with statistical learning. We suggest movement activates the striatum, which is not only responsible for motor control but also plays a role in incidental learning. (shrink)

Group dynamics play an important role in the social interactions of both children and adults. A large amount of research has shown that merely being allocated to arbitrarily defined groups can evoke disproportionately positive attitudes toward one’s in-group and negative attitudes toward out-groups, and that these biases emerge in early childhood. This prompts important empirical questions with far-reaching theoretical and applied significance. How robust are these inter-group biases? Can biases be mitigated by behaviors known to bond individuals and groups together? (...) How can bonds be forged across existing group divides? To explore these questions, we examined the bonding effects of interpersonal synchrony on minimally constructed groups in a controlled experiment. In-group and out-group bonding were assessed using questionnaires administered before and after a task in which groups performed movements either synchronously or non-synchronously in a between-participants design. We also developed an implicit behavioral measure, the Island Game, in which physical proximity was used as an indirect measure of interpersonal closeness. Self-report and behavioral measures showed increased bonding between groups after synchronous movement. Bonding with the out-group was significantly higher in the condition in which movements were performed synchronously than when movements were performed non-synchronously between groups. The findings are discussed in terms of their importance for the developmental social psychology of group dynamics as well as their implications for applied intervention programs. (shrink)

People often make use of a spatial “mental time line” to represent events in time. We investigated whether the eyes follow such a mental time line during online language comprehension of sentences that refer to the past, present, and future. Participants' eye movements were measured on a blank screen while they listened to these sentences. Saccade direction revealed that the future is mapped higher up in space than the past. Moreover, fewer saccades were made when two events are simultaneously (...) taking place at the present moment compared to two events that are happening in different points in time. This is the first evidence that oculomotor correlates reflect mental looking along an abstract invisible time line during online language comprehension about time. Our results support the idea that observing eye movements is likely to “detect” invisible spatial scaffoldings which are involved in cognitively processing abstract meaning, even when the abstract meaning lacks an explicit spatial correlate. Theoretical implications of these findings are discussed. (shrink)

This study investigates how speed of motion is processed in language. In three eye-tracking experiments, participants were presented with visual scenes and spoken sentences describing fast or slow events (e.g., The lion ambled/dashed to the balloon). Results showed that looking time to relevant objects in the visual scene was affected by the speed of verb of the sentence, speaking rate, and configuration of a supporting visual scene. The results provide novel evidence for the mental simulation of speed in language (...) and show that internal dynamic simulations can be played out via eye movements toward a static visual scene. (shrink)

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

Jasna Russo argues powerfully for survivor-controlled narrative research as a counterpoint to ‘conventional narrative research,’ in which a clear dichotomy obtains between the researcher who interprets and the participant whose narrative is interpreted. Russo calls us to an ethic of engagement and a focus on dialogic relationships within the research process as a way to disrupt the potential for ‘epistemic violence’ in conventional narrative research, and toward the development of a survivor owned ‘model of madness.’ Herein I extend the discussion (...) of intersectionality that Russo opened. In particular, I ask: What theoretical resources and scholarship can we draw upon to support the kind of critical... (shrink)

Organizational members are likely to harbor different allegiances, values, and identifications that can affect how they respond to their organization’s stigmatization. Drawing on the empirical case of a public broadcaster in South Korea initially stigmatized for its association with an authoritarian government, we focus on the responses of different intra-organizational groups to stigma and their interactions with each other and with external audiences. We find that faced with stigma, groups in the organization were divided about how to respond, with those (...) defying the stigma and advocating a close relationship with the government competing with those who shared the values of stigmatizing audiences. Both groups sought control over journalism work, the organizational attribute for which the broadcaster was stigmatized, allying with external audiences that shared their respective visions. The dominance of the group that defied the stigma led to increased stigmatization of the organization by existing audiences and additionally prompted the participation of initially passive audiences in its denigration, eventually leading to organizational decline. We contribute to the literature on stigma by promoting an understanding of heterogeneity among members in stigmatized organizations and its implications for the consequences of stigma. We also contribute to theorizing stigmatization as a relational process by demonstrating how the heterogeneity of organizational members’ experience of stigma interacted with audience heterogeneity and highlighting the relative roles played by active and passive audiences in bringing about the decline of a stigmatized organization. (shrink)

Human interaction has two principle functions: building and maintaining relationships with others and exchanging information. The function of building and maintaining relationships with others relates to interpersonal coordination; this behavior pattern is expected to predict the outcome of social relationships, such as between therapists and patients. It is unclear, however, whether the exchange of information is associated with interpersonal coordination. In the present study, we tested a hypothesis of whether body movement synchrony occurs in a natural conversation and whether (...) this synchrony has a positive correlation with the degree of information exchange. Fifty participants were engaged in a conversation task; each had different roles in the conversation. We measured their body movements during this conversation using an optical motion capture system. Similar to methods that can be found in previous research, we calculated body movements and quantified their synchrony applying the methods previously reported that automatically quantified their body movements. Moreover, we determined the participants’ degree of information exchange concerning the conversation using a questionnaire. We observed that the body movement synchrony of pairs who talked with each other was significantly higher than that of pairs who did not talk with each other, and that this synchrony was positively associated with the degree of information exchange. These results suggest that body movement synchrony predicted information exchange. (shrink)

The idea that our conscious decisions determine our actions has been challenged by a report suggesting that the brain starts to prepare for a movement before the person concerned has consciously decided to move . Libet et al. claimed that their results show that our actions are not consciously initiated. The current article describes two experiments in which we attempted to replicate Libet et al.'s comparison of participants' movement-related brain activity with the reported times of their decisions (...) to move and also the reported times of their decisions of which hand to move. We also looked at the distribution of participants' reports over time to evaluate an alternative explanation of Libet et al.'s results. Although the Readiness Potential was usually present before all of the decisions to move, consistent with the findings of Keller and Heckhausen and Libet et al. , we found that many reported decision times were before the onset of the Lateralized Readiness Potential, which measures hand-specific movement preparation. The latter finding is consistent with the conclusion that the LRP always started after the conscious decision to move. We conclude that even though activity related to movement anticipation may be present before a conscious decision to move, the cortical preparation necessary for the movement to happen immediately may not start until after the conscious decision to move. (shrink)

As we move towards a world that is using machine learning and nascent artificial intelligence to analyse and, in many ways, guide most aspects of our lives, new forms of heterogeneous collaborative teams that include human/intelligent machine agents will become not just possible, but an inevitable part of our shared world. The conscious participation of the arts in the conversation about, and development and implementation of, these new collaborative possibilities is crucial, as the arts serve as our best lens (...) through which we can explore the full spectrum of potential possibilities and futures. Through the complex relationships formed through heterogeneous human/intelligent agent collaboration, we are given the opportunity to re-examine some of our assumptions and suppositions of teamwork and forms of relating and thinking within a group environment. (shrink)

Arthrogryposis multiplex congenita (AMC) is a heterogeneous syndrome where multiple joints have reduced range of motion due to contracture formation prior to birth. A common cause of AMC is reduced embryonic movement in utero. This reduction in embryonic movement can perturb molecular mechanisms and signaling pathways involved in the formation of joints during development. The absence of mechanical stimuli can impair joint cavitation, resulting in joint fusion, and ultimately eliminate function. In turn, mechanical stimuli are critical for (...) proper joint formation during development and for mitigating AMC. Studies in experimental animal models have provided a greater understanding on the molecular pathophysiology of congenital contracture formation as a consequence of embryonic immobilization. Elucidation of how the mechanical signaling environment is transduced to initiate a biological response will be necessary to gain a deeper understanding of how mechanical stimuli are intertwined in the molecular regulation of joint development. (shrink)

Sequential action makes up the bulk of human daily activity, and yet much remains unknown about how people learn such actions. In one motor learning paradigm, the serial reaction time (SRT) task, people are taught a consistent sequence of button presses by cueing them with the next target response. However, the SRT task only records keypress response times to a cued target, and thus it cannot reveal the full time‐course of motion, including predictive movements. This paper describes a mouse (...) class='Hi'>movement trajectory SRT task in which the cursor must be moved to a cued location. We replicated keypress SRT results, but also found that predictive movement—before the next cue appears—increased during the experiment. Moreover, trajectory analyses revealed that people developed a centering strategy under uncertainty. In a second experiment, we made prediction explicit, no longer cueing targets. Thus, participants had to explore the response alternatives and learn via reinforcement, receiving rewards and penalties for correct and incorrect actions, respectively. Participants were not told whether the sequence of stimuli was deterministic, nor if it would repeat, nor how long it was. Given the difficulty of the task, it is unsurprising that some learners performed poorly. However, many learners performed remarkably well, and some acquired the full 10‐item sequence within 10 repetitions. Comparing the high‐ and low‐performers’ detailed results in this reinforcement learning (RL) task with the first experiment's cued trajectory SRT task, we found similarities between the two tasks, suggesting that the effects in Experiment 1 are due to predictive, rather than reactive processes. Finally, we found that two standard model‐free reinforcement learning models fit the high‐performing participants, while the four low‐performing participants provide better fit with a simple negative recency bias model. (shrink)

Sequential action makes up the bulk of human daily activity, and yet much remains unknown about how people learn such actions. In one motor learning paradigm, the serial reaction time (SRT) task, people are taught a consistent sequence of button presses by cueing them with the next target response. However, the SRT task only records keypress response times to a cued target, and thus it cannot reveal the full time‐course of motion, including predictive movements. This paper describes a mouse (...) class='Hi'>movement trajectory SRT task in which the cursor must be moved to a cued location. We replicated keypress SRT results, but also found that predictive movement—before the next cue appears—increased during the experiment. Moreover, trajectory analyses revealed that people developed a centering strategy under uncertainty. In a second experiment, we made prediction explicit, no longer cueing targets. Thus, participants had to explore the response alternatives and learn via reinforcement, receiving rewards and penalties for correct and incorrect actions, respectively. Participants were not told whether the sequence of stimuli was deterministic, nor if it would repeat, nor how long it was. Given the difficulty of the task, it is unsurprising that some learners performed poorly. However, many learners performed remarkably well, and some acquired the full 10‐item sequence within 10 repetitions. Comparing the high‐ and low‐performers’ detailed results in this reinforcement learning (RL) task with the first experiment's cued trajectory SRT task, we found similarities between the two tasks, suggesting that the effects in Experiment 1 are due to predictive, rather than reactive processes. Finally, we found that two standard model‐free reinforcement learning models fit the high‐performing participants, while the four low‐performing participants provide better fit with a simple negative recency bias model. (shrink)