The Dynamics of Visual Reweighting in Healthy and Fall-Prone Older Adults

Multisensory reweighting (MSR) is an adaptive process that prioritizes the visual, vestibular, and somatosensory inputs to provide the most reliable information for postural stability when environmental conditions change. This process is thought to degrade with increasing age and to be particularly deficient in fall-prone versus healthy older adults. In the present study, the authors investigate the dynamics of sensory reweighting, which is not well-understood at any age. Postural sway of young, healthy, and fall-prone older adults was measured in response to large changes in the visual motion stimulus amplitude within a trial. Absolute levels of gain, and the rate of adaptive gain change were examined when visual stimulus amplitude changed from high to low and from low to high. Compared with young adults, gains in both older adult groups were higher when the stimulus amplitude was high. Gains in the fall-prone elderly were higher than both other groups when the stimulus amplitude was low. Both older groups demonstrated slowed sensory reweighting over prolonged time periods when the stimulus amplitude was high. The combination of higher vision gains and slower down weighting in older adults suggest deficits that may contribute to postural instability.     

Consciousness as a guide to personal persistence

Mentalistic (or Lockean) accounts of personal identity are normally formulated in terms of causal relations between psychological states such as beliefs, memories, and intentions. In this paper we develop an alternative (but still Lockean) account of personal identity, based on phenomenal relations between experiences. We begin by examining a notorious puzzle case due to Bernard Williams, and extract two lessons from it: first, that Williams's puzzle can be defused by distinguishing between the psychological and phenomenal approaches, second, that so far as personal identity is concerned, it is phenomenal rather than psychological continuity that matters. We then consider different ways in which the phenomenal approach may be developed, and respond to a number of objections.

That with which the consciousness of this present thinking thing can join itself, makes the same person, and is one self with it, and with nothing else; and so attributes to itself and owns all the actions of that thing, as its own, as far as that consciousness reaches, and no farther; as every one who reflects will perceive.

Locke, Essay Concerning Human Understanding [II.xxvii.17]     

Illusory correlation,group size and memory

Two studies were conducted to test the predictions of a multi-component model of distinctiveness-based illusory correlation (IC) regarding the use of episodic and evaluative information in the production of the phenomenon. Extending on the standard paradigm, participants were presented with 4 groups decreasing in size, but all exhibiting the same ratio of positive to negative behaviours. Study 1 (N = 75) specifically tested the role of group size and distinctiveness, by including a zero-frequency cell in the design. Consistent with predictions drawn from the proposed model, with decreasing group size, the magnitude of the IC effect showed a linear increase in judgments thought to be based on evaluative information. In Study 2 (N = 43), a number of changes were introduced to a group assignment task (double presentation, inclusion of decoys) that allowed a more rigorous test of the predicted item-specific memory effects. In addition, a new multilevel, mixed logistic regression approach to signal-detection type analysis was used, providing a more flexible and reliable analysis than previously. Again, with decreasing group size, IC effects showed the predicted monotonic increase on the measures (group assignment frequencies, likability ratings) thought to be dependent on evaluative information. At the same time, measures thought to be based on episodic information (free recall and group assignment accuracy) partly revealed the predicted enhanced episodic memory for smaller groups and negative items, while also supporting a distinctiveness-based approach. Additional analysis revealed that the pattern of results for judgments though to be based on evaluative information was independent of interpersonal variation in behavioral memory, as predicted by the multi-component model, and in contrast to predictions of the competing models. The results are discussed in terms of the implications of the findings for the proposed mechanisms of illusory correlation.     

The inspired time traveler: examining the implications of nostalgic entertainment experiences for two-factor models of entertainment

ABSTRACT

Two studies investigated the characteristics of nostalgic entertainment experiences. A survey (Study 1) asked American undergraduates to report their cognitive and affective reactions during a recent entertainment experience that they deemed nostalgic, meaningful, or pleasurable. Results indicated that nostalgic experiences often occurred after exposure to familiar media content (e.g., beloved children’s shows). Although these experiences were affectively similar to both pleasurable entertainment experiences (in terms of enjoyment) and meaningful entertainment experiences (in terms of mixed affect), they differed in the focus of their associated cognitions (i.e., reflection on the self in the past and over time). A follow-up experiment (Study 2) demonstrated that exposure to familiar children’s shows (rather than unfamiliar children’s shows or meaningful film trailers) induced nostalgic reactions in adults ranging in age from 19 to 47. The implications of these findings for current two-factor models of entertainment are discussed.     

The impact of mindfulness on well-being and performance in the workplace: an inclusive systematic review of the empirical literature

Work can be demanding, imposing challenges that can be detrimental to the physical and mental health of workers. Efforts are therefore underway to develop practices and initiatives that may improve occupational well-being. These include interventions based on mindfulness meditation. This paper offers a systematic review of empirical studies featuring analyses of mindfulness in occupational contexts. Databases were reviewed from the start of records to January 2016. Eligibility criteria included experimental and correlative studies of mindfulness conducted in work settings, with a variety of well-being and performance measures. A total of 153 papers met the eligibility criteria and were included in the systematic review, comprising 12,571 participants. Mindfulness was generally associated with positive outcomes in relation to most measures. However, the quality of the studies was inconsistent, so further research is needed, particularly involving high-quality randomized control trials.     

The Unravelling of Identities and Belonging: Criminal Gang Involvement of Youth from Immigrant Families

Grounded in the experiences of 30 gang-involved respondents in Calgary, this Canadian study examined criminal gang involvement of youth from immigrant families. Our analysis showed that gang-involved youth had experienced multiple, severe and prolonged personal and interpersonal challenges in all facets of their lives and that gradual disintegration of their relationships with family, school and community had resulted in the unravelling of self-concept, ethnic identity, sense of belonging and sense of citizenship and progressively propelled them towards membership in high-risk social cliques and criminal gangs. Our findings brought attention to the need for coordinated, comprehensive support for youth from immigrant families through family-based, school-based and community-based programs.     

Match-Action: The Role of Motion and Audio in Creating Global Change Blindness in Film

An everyday example of change blindness is our difficulty to detect cuts in an edited moving-image. Edit blindness (Smith & Henderson, 2008) is created by adhering to the continuity editing conventions of Hollywood, for example, coinciding a cut with a sudden onset of motion (match-action). In this study, we isolated the roles motion and audio play in limiting awareness of match-action cuts by removing motion before and/or after cuts in existing Hollywood film clips and presenting the clips with or without the original soundtrack whilst participants tried to detect cuts. Removing post-cut motion significantly decreased cut detection time and the probability of missing the cut. By comparison, removing pre-cut motion had no effect suggesting, contrary to the editing literature, that the onset of motion before a cut may not be as critical for creating edit blindness as the motion after a cut. Analysis of eye movements indicated that viewers reoriented less to new content across intact match-action cuts than shots with motion removed. Audio played a surprisingly large part in creating edit blindness with edit blindness mostly disappearing without audio. These results extend film editor intuitions and are discussed in the context of the Attentional Theory of Cinematic Continuity (Smith, 2012a).     

Why Narcissists are Unwilling to Apologize: The Role of Empathy and Guilt

We hypothesized that narcissists would be unwilling to apologize for their interpersonal transgressions, and that reduced levels of self‐reported empathy and guilt would serially mediate this effect. Narcissism is characterized by little empathy for the victim, which reduces guilt about one's transgressions. Low guilt, in turn, is associated with unwillingness to apologize. In Study 1, we assessed dispositional narcissism, empathy, guilt, and willingness to apologize. In Study 2, we assessed dispositional narcissism and obtained state measures of empathy, guilt, and willingness to apologize. In Study 3, we manipulated narcissism and collected state measures of empathy, guilt, and willingness to apologize. Narcissism was negatively associated with (Studies 1–2) and decreased (Study 3) willingness to apologize, with this link being explained (i.e., serially mediated) by low empathy and guilt. Finally, in Study 4, we showed that antagonistic narcissism (i.e., narcissistic rivalry), but not agentic narcissism (i.e., narcissistic admiration), was negatively associated with willingness to apologize and apologizing behaviour. In all, narcissists are unwilling to apologize for their transgressions, as they experience little empathy for their victims and lower guilt. Copyright © 2017 European Association of Personality Psychology     

Job attitudes of workers with two jobs

This article examines the job attitudes of people who hold more than one job. Satisfaction, stress, and organizational (continuance and affective) commitment were assessed for both primary and secondary jobs for 83 full-time workers who held two jobs concurrently. Consistency between job constructs across jobs was negligible, except for continuance organizational commitment and job satisfaction. Similarity between jobs was a significant moderator of convergence (though not consistency), whereas affective disposition did not appear to affect consistency or convergence. Holders of multiple jobs had higher satisfaction, higher stress, and higher affective organizational commitment with their primary jobs compared to their secondary jobs. Hierarchical regression analyses demonstrated that job constructs associated with the primary job were useful for explaining life outcomes, even after controlling for affective disposition. Job constructs associated with secondary jobs, however, were not useful in explaining life outcomes. Limitations of the current study as well as suggestions for future research are given.     

Performance benefits of depression: sequential decision making in a healthy sample and a clinically depressed sample

Previous research reported conflicting results concerning the influence of depression on cognitive task performance. Whereas some studies reported that depression enhances performance, other studies reported negative or null effects. These discrepant findings appear to result from task variation, as well as the severity and treatment status of participant depression. To better understand these moderating factors, we study the performance of individuals-in a complex sequential decision task similar to the secretary problem-who are nondepressed, depressed, and recovering from a major depressive episode. We find that depressed individuals perform better than do nondepressed individuals. Formal modeling of participants' decision strategies suggested that acutely depressed participants had higher thresholds for accepting options and made better choices than either healthy participants or those recovering from depression.