Witnesses in action: the effect of physical exertion on recall and recognition

Understanding memory performance under different operational conditions is critical in many occupational settings. To examine the effect of physical exertion on memory for a witnessed event, we placed two groups of law-enforcement officers in a live, occupationally relevant scenario. One group had previously completed a high-intensity physical-assault exercise, and the other had not. Participants who completed the assault exercise showed impaired recall and recognition performance compared with the control group. Specifically, they provided significantly less accurate information concerning critical and incidental target individuals encountered during the scenario, recalled less briefing information, and provided fewer briefing updates than control participants did. Exertion was also associated with reduced accuracy in identifying the critical target from a lineup. These results support arousal-based competition accounts proposing differential allocation of resources under physiological arousal. These novel findings relating to eyewitness memory performance have important implications for victims, ordinary citizens who become witnesses, and witnesses in policing, military, and related operational contexts.     

Passion, Containment, and Commitment-Essential Elements of Groups Across the Lifespan in Bruce Springsteen's Work

Abstract The group, with its intensity, interaction, roles and dynamics, is an important unit of experience in everyday life, in psychotherapy groups, and in Bruce Springsteen's music. This paper explores experiences of and ideas about real life groups throughout the lifecycle through Springsteen's music, framed in concepts from a broad group literature including clinical psychology, social psychology, group psychotherapy, sociology, anthropology, and organizational psychology. The lifecycle includes adolescence and the role of the group to contain all its passions; the work world with its excitements and disillusionments; encounters with loss, and the holding power of the group; experiences of dissolution of the group, and possibilities for recommitment; and the passion and support of the group during celebrations. Themes of passion, containment, and commitment weave throughout the narrative.     

Emotional Expression and Language: A Longitudinal Study of Typically Developing Earlier and Later Talkers from 15 to 30 Months

Children's emotional expression and language both develop during infancy and early childhood, yet these two communication systems have been studied primarily in isolation. This study focuses instead on assessing the relation between them just as productive language emerges during toddlerhood. Seventy‐seven typically developing, firstborn toddlers and their families were recruited at 13 months of age. Using an extreme groups design, earlier and later talkers were selected based on their MacArthur Communicative Development Inventory production scores. Laboratory visits occurred at 15, 21, and 30 months; home visits occurred at 3‐month intervals from 15 to 30 months. Observational and parent report measures assessed child language, emotional expression, temperament, and overall developmental functioning. Parents also reported on parenting stress and family life events. Overall, results support a significant relation between emotional expression and productive language that varies according to the specific emotion, a finding that may resolve earlier contradictory results in this area. Earlier talkers expressed more joy/pleasure than did later talkers, but later talkers expressed more fear and anger than did earlier talkers. Potential contributions of various child/family factors were explored. Child temperament is proposed as influencing this relation through its effects on the child's transactions with the caregiving environment.     

Beauty, Ethnicity, and Age: Does Internalization of Mainstream Media Ideals Influence Attitudes Towards Older Adults?

Mainstream North American media promotes the message that attaining a thin, youthful appearance is central to a woman’s value and social role while appearing older is highly undesirable. However, appearance ideals and attitudes toward aging differ substantially across cultural and ethnic groups, which may influence the degree to which one internalizes media ideals and holds anti-aging attitudes. Consequently, this study examined the relationships between internalization of the youthful, thin-ideal appearance perpetuated by mainstream North American media and attitudes toward the elderly in a sample of 281 undergraduate females under the age of 30 attending a university in the Western United States. Specifically, European American (n?=?115), Asian American/Pacific Islander (n?=?74), Hispanic/Latina (n?=?52), and African American (n?=?42) women voluntarily completed self-report measures of internalization of media ideals and attitudes towards older adults. Attitudes towards the elderly were significantly more negative at higher levels of internalization of North American appearance ideals, independent of ethnicity. These data suggest that internalization of North American appearance ideals perpetuated by media are related to negative attitudes towards older adults. Future research should investigate the influence of negative attitudes about aging on behaviors toward older adults or one’s own aging process.     

Linking self and ingroup: Self‐anchoring as distinctive cognitive route to social identification

The present paper investigates how cognitive projection processes instigate social identification. We complement the classical self‐stereotyping approach (i.e., conforming to prototypical group norms) by investigating self‐anchoring (i.e., projection from self to group) as a distinct cognitive route to social identification. Self‐anchoring has mainly been investigated as predictor of intergroup differentiation. Surprisingly, no reliable link has been provided yet between self‐anchoring and social identification. In Study 1, we provide first evidence for this positive link. In Study 2, we add self‐stereotyping to our model and show that self‐anchoring is still positively related to social identification when controlling for self‐stereotyping. Additionally, we show that self‐anchoring is positively related to affective components of identification, while self‐stereotyping is positively related to cognitive components. Moreover, we examined the impact of self‐concept stability on self‐anchoring. Self‐concept stability was positively related to self‐anchoring, and hence to social identification (Study 1), independently from self‐stereotyping (Study 2). In the discussion, we argue that disentangling self‐anchoring from self‐stereotyping is important as it increases our insight in how people identify, and how this may vary depending on self‐concept and group context. Copyright © 2011 John Wiley & Sons, Ltd.     

Scaling space with the mirror illusion: The influence of body plasticity on perceived affordances

How do body representations influence decisions about action? We developed a novel paradigm using the mirror illusion (Holmes, Crozier, & Spence, in Cognitive, Affective, & Behavioral Neuroscience, 4, 193–200, 2004) to examine two ways of evoking body plasticity—extension of body capabilities and visual capture—and its influence on perceived affordances. In two experiments, we manipulated the action capabilities of a seen left hand by lengthening the arm with a rod (Exp. 1) or enlarging the hand with a glove (Exp. 2). The right hand was unaltered physically and was occluded by placement in a mirror box. We induced visual capture through synchronous finger movements of both hands. Right-hand estimates of reaching and of fitting through apertures increased relative to actual capabilities during visual capture, supporting the claim that visual capture can induce the incorporation of an apparent body extension into action decisions. The results suggest that both perceptual and cognitive influences on bodily awareness underlie perceived affordances.     

Perceived Risks and Benefits in a Text Message Study of Substance Abuse and Sexual Behavior

To inform ethical procedures for human subjects research using mobile health (mHealth), we examined perceived risks and benefits of study participation among emerging adults (N = 54) with drug use who completed text message assessments of substance use and sexual behaviors. Most participants reported comfort with participation and some reported perceived benefits, such as improved relationships. Perceived risks were infrequently reported, including negative emotions and legal or financial concerns. In conclusion, participants from a vulnerable population reported few perceived harms of participation in longitudinal mHealth assessments of sensitive behaviors. Researchers should continue characterizing participants’ perspectives on ethical aspects of mHealth research.