Memory for target height is scaled to observer height

According to the embodied approach to visual perception, individuals scale the environment to their bodies. This approach highlights the central role of the body for immediate, situated action. The present experiments addressed whether body scaling—specifically, eye-height scaling—occurs in memory when action is not immediate. Participants viewed standard targets that were either the same height as, taller than, or shorter than themselves. Participants then viewed a comparison target and judged whether the comparison was taller or shorter than the standard target. Participants were most accurate when the standard target height matched their own heights, taking into account postural changes. Participants were biased to underestimate standard target height, in general, and to push standard target height away from their own heights. These results are consistent with the literature on eye-height scaling in visual perception and suggest that body scaling is not only a useful metric for perception and action, but is also preserved in memory.     

Integrating multiple perspectives on error-related brain activity: The ERN as a neural indicator of trait defensive reactivity

In the past 20 years, research concerning the error-related negativity (ERN), a negative-going deflection in the event-related brain potential (ERP) following an erroneous response, has flourished. Despite a substantial body of research, debate regarding its functional significance persists. In what follows, we selectively review literature on the ERN, and outline several prominent cognitive theories related to the generation and significance of the ERN. Cognitive theories predict that the size of the ERN should relate to variation in behavior, although there is substantial evidence that the ERN and behavioral measures are at least partially dissociable. Moreover, individual difference measures, psychopathology, and motivational factors all appear to impact basic mechanisms that generate the ERN to moderate the magnitude of the ERN, suggesting a need to integrate alternative perspectives into models of ERN amplitude. Insofar as errors prompt the mobilization of defensive responses, we view variation in the ERN in terms of error detection in the service of protecting the organism. Based on data indicating that the ERN is highly stable over time, heritable, and related to broad dimensions of personality, we propose that the ERN is a neural index of a neurobehavioral trait and variation in its amplitude is related in part to individual differences in defensive reactivity. Implications and future directions are considered.     

Retaliation and antisocial punishment are overlooked in many theoretical models as well as behavioral experiments

Guala argues that there is a mismatch between most laboratory experiments on costly punishment and behavior in the field. In the lab, experimental designs typically suppress retaliation. The same is true for most theoretical models of the co-evolution of costly punishment and cooperation, which a priori exclude the possibility of defectors punishing cooperators.     

Who we were and who we will be: the temporal context of women's in-group stereotype content

Research has elaborated considerably on the dimensions of out-group stereotype content and on the origins and functions of different content combinations. Less attention has been given to the origins and functions of in-group stereotype content. We argue that in-group stereotypes are likely to serve different social identity functions, and thus attract different content, dependent on individual differences in in-group identification and on the temporal perspective of the perceiver. Two studies (Ns = 43 and 93) found that women's in-group stereotype content varied as a function of gender group identification and temporal perspective. When the past was primed, highly identified women generated stereotypes that emphasized the warmth (but not competence) of their group. When the future was primed, highly identified women generated stereotypes that emphasized the competence (as well as warmth) of their group. These results are discussed in terms of the use of stereotypes for social creativity versus social change.     

Hypnotic ingroup-outgroup suggestion influences economic decision-making in an Ultimatum Game

Studies in economic decision-making have demonstrated that individuals appreciate social values supporting equity and disapprove unfairness when distributing goods between two or more parties. However, this seems to critically depend on psychological mechanisms partly pertaining to the ingroup-outgroup distinction. Little is known as to what extent economic bargaining can be manipulated by means of psychological interventions such has hypnosis. Here we show that a hypnotic ingroup versus outgroup suggestion impacts the tolerance of unfairness in an Ultimatum Game. Specifically, the ingroup suggestion was associated with significantly greater acceptance rates of unfair offers than the outgroup suggestion, whereas hypnosis alone exerted only small effects on unfairness tolerance. These findings indicate that psychological interventions such as hypnotic suggestion can contribute to ingroup favoritism and outgroup rejection.     

Differential involvement of mGluR1 and mGluR5 in memory reconsolidation and retrieval in a passive avoidance task in 1-day old chicks

Group I metabotropic glutamate receptors (mGluRs) are involved in memory formation. The Ca2+ signal derived from stimulation of IP3 receptors (IP3Rs) via mGluRs, initiates protein synthesis that is required for memory consolidation and reconsolidation. However it has been suggested that different mechanisms are triggered by mGluR1/5 activation in these two processes. It is also not clear whether the transient amnesia observed after blockade of group I mGluRs after a reminder, results from disturbance of memory reconsolidation or temporal impairment of recall. The aim of this study was to examine more closely the role of mGluR1 in memory consolidation and reconsolidation and to detect differences in the participation of mGluR1 and mGluR5 in memory retrieval after initial training and after the remainder of the task. Our results demonstrate, that in chicks performing a one-trial passive avoidance task, antagonists of mGluR1, mGluR5 and IP3R significantly disturb memory consolidation and reconsolidation. Inhibition of mGluR5 and IP3R also impairs memory recall, whereas mGluR1 do not seem to participate in this process. The presented data suggest that activation of mGluR1 and mGluR5 is necessary for the correct course of memory consolidation and reconsolidation, whereas mGluR5 are additionally involved in retrieval processes dependent on Ca2+ release from IP3 activated intracellular stores.     

Subjectivity in psychological science: From problem to prospect

The problem of subjectivity within psychological research has long been recognized. The practices of scientific psychology, however, continue to assume that objectivity is desirable, even if not completely possible, and that subjectivity is a source of bias that must be minimized or eliminated. Such a dispassionate stance has offered and continues to offer a range of benefits, not least a tight focus on participants' relevant responses. Nonetheless, in this article, we question the wisdom of always or automatically working to minimize participant and researcher subjectivity, and we invite psychological researchers to consider the benefits of a more, what we term, reflexive scientific attitude. We turn in particular to recent theoretical and methodological innovations within qualitative research in order to help us progress toward a more reflexive psychological science where subjectivity is re-viewed as a resource that can be tapped in order to contextualize and enrich the psychological research process and its products. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

The Third Rail of Family Systems: Sibling Relationships, Mental and Behavioral Health, and Preventive Intervention in Childhood and Adolescence

Sibling relationships are an important context for development, but are often ignored in research and preventive interventions with youth and families. In childhood and adolescence, siblings spend considerable time together, and siblings’ characteristics and sibling dynamics substantially influence developmental trajectories and outcomes. This paper reviews research on sibling relationships in childhood and adolescence, focusing on sibling dynamics as part of the family system and sibling influences on adjustment problems, including internalizing and externalizing behaviors and substance use. We present a theoretical model that describes three key pathways of sibling influence: one that extends through siblings’ experiences with peers and school, and two that operate largely through family relationships. We then describe the few existing preventive interventions that target sibling relationships and discuss the potential utility of integrating siblings into child and family programs.     

Top-down modulation: bridging selective attention and working memory

Selective attention, the ability to focus our cognitive resources on information relevant to our goals, influences working memory (WM) performance. Indeed, attention and working memory are increasingly viewed as overlapping constructs. Here, we review recent evidence from human neurophysiological studies demonstrating that top-down modulation serves as a common neural mechanism underlying these two cognitive operations. The core features include activity modulation in stimulus-selective sensory cortices with concurrent engagement of prefrontal and parietal control regions that function as sources of top-down signals. Notably, top-down modulation is engaged during both stimulus-present and stimulus-absent stages of WM tasks; that is, expectation of an ensuing stimulus to be remembered, selection and encoding of stimuli, maintenance of relevant information in mind and memory retrieval.