Neurocognitive control in dance perception and performance

Dance is a rich source of material for researchers interested in the integration of movement and cognition. The multiple aspects of embodied cognition involved in performing and perceiving dance have inspired scientists to use dance as a means for studying motor control, expertise, and action-perception links. The aim of this review is to present basic research on cognitive and neural processes implicated in the execution, expression, and observation of dance, and to bring into relief contemporary issues and open research questions. The review addresses six topics: 1) dancers' exemplary motor control, in terms of postural control, equilibrium maintenance, and stabilization; 2) how dancers' timing and on-line synchronization are influenced by attention demands and motor experience; 3) the critical roles played by sequence learning and memory; 4) how dancers make strategic use of visual and motor imagery; 5) the insights into the neural coupling between action and perception yielded through exploration of the brain architecture mediating dance observation; and 6) a neuroesthetics perspective that sheds new light on the way audiences perceive and evaluate dance expression. Current and emerging issues are presented regarding future directions that will facilitate the ongoing dialog between science and dance.     

Masculinity,status, and subordination: Why working for a gender stereotype violator causes men to lose status

Occupying gender stereotype-incongruent roles can lead individuals to lose status and earn a lower salary. The present research examined whether merely working for a supervisor in a gender-atypical occupational role leads a subordinate to lose status. Two studies found that male subordinates of gender deviants (i.e., a female supervisor in a masculine domain or a male supervisor in a feminine domain) were accorded lower status and were paid less than male subordinates of supervisors in gender-congruent roles (i.e., a female supervisor in a feminine domain or a male supervisor in a masculine domain). However, the status of female subordinates was unaffected by working for a gender atypical supervisor. Moreover, the status loss for male subordinates was mediated by a perceived lack of masculinity. Thus, establishing the male subordinate's masculine credentials eliminated the bias.     

Building blocks of bias: Gender composition predicts male and female group members’ evaluations of each other and the group

The present research examined how a group's gender composition influences intragroup evaluations. Group members evaluated fellow group members and the group as a whole following a shared task. As predicted, no performance differences were found as a function of gender composition, but judgments of individuals’ task contributions, the group's effectiveness, and desire to work with one's group again measured at a 10-week follow-up were increasingly negative as the proportion of women in the group increased. Negative judgments were consistently directed at male and female group members as indicated by no gender of target effects, demonstrating that men, simply by working alongside women, can be detrimentally affected by negative stereotypes about women. Implications for gender diversity in the workplace are discussed.     

Auditory and visual temporal sensitivity: evidence for a hierarchical structure of modality-specific and modality-independent levels of temporal information processing

The present study investigated modality-specific differences in processing of temporal information in the subsecond range. For this purpose, participants performed auditory and visual versions of a rhythm perception and three different duration discrimination tasks to allow for a direct, systematic comparison across both sensory modalities. Our findings clearly indicate higher temporal sensitivity in the auditory than in the visual domain irrespective of type of timing task. To further evaluate whether there is evidence for a common modality-independent timing mechanism or for multiple modality-specific mechanisms, we used structural equation modeling to test three different theoretical models. Neither a single modality-independent timing mechanism, nor two independent modality-specific timing mechanisms fitted the empirical data. Rather, the data are well described by a hierarchical model with modality-specific visual and auditory temporal processing at a first level and a modality-independent processing system at a second level of the hierarchy.     

Kv4.2 knockout mice have hippocampal-dependent learning and memory deficits

Kv4.2 channels contribute to the transient, outward K(+) current (A-type current) in hippocampal dendrites, and modulation of this current substantially alters dendritic excitability. Using Kv4.2 knockout (KO) mice, we examined the role of Kv4.2 in hippocampal-dependent learning and memory. We found that Kv4.2 KO mice showed a deficit in the learning phase of the Morris water maze (MWM) and significant impairment in the probe trial compared with wild type (WT). Kv4.2 KO mice also demonstrated a specific deficit in contextual learning in the fear-conditioning test, without impairment in the conditioned stimulus or new context condition. Kv4.2 KO mice had normal activity, anxiety levels, and prepulse inhibition compared with WT mice. A compensatory increase in tonic inhibition has been previously described in hippocampal slice recordings from Kv4.2 KO mice. In an attempt to decipher whether increased tonic inhibition contributed to the learning and memory deficits in Kv4.2 KO mice, we administered picrotoxin to block GABA(A) receptors (GABA(A)R), and thereby tonic inhibition. This manipulation had no effect on behavior in the WT or KO mice. Furthermore, total protein levels of the α5 or δ GABA(A)R subunits, which contribute to tonic inhibition, were unchanged in hippocampus. Overall, our findings add to the growing body of evidence, suggesting an important role for Kv4.2 channels in hippocampal-dependent learning and memory.     

Informational nudges as an effective approach in raising awareness among young adults about the risk of future disability

As many consumers have neither sufficient time nor the cognitive and motivational resources to deal with complex insurance decisions, the mere provision of information might not be enough to influence consumer perception and choice. The way such information is presented might also affect any decision made. This paper focuses on the risk of becoming unable to continue in a profession as a result of illness or an accident. In collaboration with an insurance company, we examined the effectiveness of ‘informational nudging’ (i.e. providing information which acts as a nudge) in sensitizing young adults to the potential risk of disability. In a pre‐study, an online survey (n = 1003) was conducted to assess the main barriers preventing young Swiss adults from participating in private provision. Based on the results of the pre‐study, we developed four ‘informational nudges’ and tested their effects on risk awareness and insurance choices among young adults using an online experiment (n = 240). We found that by presenting information on a company website in such a way that heuristics such as availability or loss aversion were exploited, enhanced risk awareness and a corresponding increase in insurance preferences were observed to some degree. However, the informational nudges did not motivate the participants to investigate the issues any further. Indeed, the results suggested that informational nudging could be an effective tool in raising participant awareness, but that future research is needed to understand better the interplay between automatic and deliberate processes activated by the informational nudges. Copyright © 2016 John Wiley & Sons, Ltd.     

“I'm Not Prejudiced,but . . .”: Compensatory Egalitarianism in the 2008 Democratic Presidential Primary

The historic 2008 Democratic presidential primary race between Barack Obama and Hillary Clinton posed a difficult choice for egalitarian White voters, and many commentators speculated that the election outcome would reflect pitting the effects of racism against sexism ( Steinem, 2008 ). Because self‐reported prejudices may be untrustworthy, we used the Implicit Association Test (IAT) to assess White adults’ (1) condemnation of prejudices, and (2) attitudes toward the candidates in relation to voting decisions, as part of an online survey. Results supported the proposed compensatory egalitarianism process, such that Whites’ voting choice was consistent with their implicit candidate preference, but in an effort to remain egalitarian, participants compensated for this preference by automatically condemning prejudice toward the other candidate's group. Additional findings showed that this process was moderated by participants’ ethnicity and level of prejudice, as expected. Specifically, compensatory egalitarianism occurred primarily among Whites and individuals low in explicit prejudice. Implications for candidate support, aversive racism theory, and implicit compensation processes are discussed.     

Impulsivity and Behavior-Dependent Life Events Mediate the Relationship of Reward Sensitivity and Depression,but Not Hypomania,Among at-Risk Adolescents

Both reward sensitivity and impulsivity are related to the development and course of bipolar spectrum disorders (BSDs) and have been implicated in other disorders and negative functional outcomes such as substance abuse, obesity, suicidal behaviors, and risk-taking. Furthermore, according to the transactional component of the Behavioral Approach System (BAS)/reward hypersensitivity theory of BSDs, people with reward hypersensitivity should experience more BAS-relevant events, and thus, are more vulnerable to mood symptoms and episodes via stress generation. Impulsivity may exacerbate stress generation in individuals at risk for BSDs based on exhibiting reward hypersensitivity. The current study examined whether impulsivity explained the generation of stress and subsequent mood symptoms beyond what is explained by reward sensitivity alone. Participants were 131 Moderate BAS and 216 High BAS sensitivity adolescents (M = 18.43 years, SD = 1.40), who completed baseline measures of reward sensitivity and impulsivity, as well as follow-up measures of life events and mood symptoms. Results from linear regression analyses indicated that higher baseline impulsivity predicted behavior-dependent, but not behavior-independent, life events. Furthermore, path analyses suggested that the effect of BAS group on depression symptoms at next follow-up was partly explained via the indirect effect of impulsivity and negative behavior-dependent life events. We did not find these effects for behavior-independent or positive-dependent events or for prediction of hypomanic symptoms. The findings suggest that impulsivity may account for stress generation of negative events that precede depression.     

The Quarter-life Time Period: An Age of Indulgence,Crisis or Both?

A new developmental stage called the quarter-life is proposed, extending from approximately 18–29 years of age and sometimes later. The emergence of this period is believed to be the result of several social, historic and economic factors that occurred post WWII. This article explores these changes in terms of the experiences of affluent young people in today’s Western society. A typology of adaptational responses are presented and explored as the quarter-lifers attempt to navigate their way to adulthood within the context of this ‘new’ affluent society. Implications for family therapists are considered.     

Does making a conversation asynchronous reduce the negative impact of phone call on driving?

Mobile phone use at the wheel has a proven negative impact on driving. This paper aims to assess whether using an answerphone instead of a normal phone reduces this negative impact. The answerphone makes communication asynchronous and splits it into three disconnected and successive phases: interaction with the voice interface, listening to the message and answering, which have been evaluated separately.The experiment was conducted on a fixed base simulator, with 30 participants (half male and female, aged from 18 to 50 years, driving at least 5000 km per year).The results show better scores for correct responses to stimuli for answerphone communications than for phone communications, although response times were higher in both communication conditions than in the driving alone condition. When the three phases of answerphone use were compared, interacting with the answerphone and listening to the message were found to be significantly less disturbing than answering, in terms of correct responses and response times.By making the conversation asynchronous, the answerphone avoids direct interaction between driver and caller. The fact that communication is under the driver’s control allows him/her to pace the interaction better. Lastly, splitting up the conversation into different phases decreases the overall task difficulty.