The effects of verbal cueing on implicit hand maps

The use of position sense to perceive the external spatial location of the body requires that immediate proprioceptive afferent signals be combined with stored representations of body size and shape. Longo and Haggard (2010) developed a method to isolate and measure this representation in which participants judge the location of several landmarks on their occluded hand. The relative location of judgements is used to construct a perceptual map of hand shape. Studies using this paradigm have revealed large, and highly stereotyped, distortions of the hand, which is represented as wider than it actually is and with shortened fingers. Previous studies using this paradigm have cued participants to respond by giving verbal labels of the knuckles and fingertips. A recent study has shown differential effects of verbal and tactile cueing of localisation judgements about bodily landmarks (Cardinali et al., 2011). The present study therefore investigated implicit hand maps measuring through localisation judgements made in response to verbal labels and tactile stimuli applied to the same landmarks. The characteristic set of distortions of hand size and shape were clearly apparent in both conditions, indicating that the distortions reported previously are not an artefact of the use of verbal cues. However, there were also differences in the magnitude of distortions between conditions, suggesting that the use of verbal cues may alter the representation of the body underlying position sense.     

Negative intergroup contact makes group memberships salient: explaining why intergroup conflict endures

Drawing from the intergroup contact model and self-categorization theory, the authors advanced the novel hypothesis of a valence-salience effect, whereby negative contact causes higher category salience than positive contact. As predicted, in a laboratory experiment of interethnic contact, White Australians (N = 49) made more frequent and earlier reference to ethnicity when describing their ethnic contact partner if she had displayed negative (vs. positive, neutral) nonverbal behavior. In a two-wave experimental study of retrieved intergenerational contact, American young adults (N = 240) reported age to be more salient during negative (vs. positive) contact and negative contact predicted increased episodic and chronic category salience over time. Some evidence for the reverse salience-valence effect was also found. Because category salience facilitates contact generalization, these results suggest that intergroup contact is potentially biased toward worsening intergroup relations; further implications for theory and policy making are discussed.     

Public involvement: How to encourage citizen participation

The study was aimed at identifying the impact of a pool of variables on the willingness of the participants in five consultative arenas (Open Space Technology) to become involved in future experiences of civic engagement. The study also intended to verify whether such willingness varied among subgroups of participants. In total, 194 participants (49.5% men, 50.5% women; mean age = 37.04) were recruited during five OSTs held in Italy between May and November 2008 and asked to fill in a questionnaire composed of the following measures: perceived costs and benefits, emotions, sense of community, trust in institutions and need for cognitive closure. Findings suggested that the setting‐related variables—namely the perception of costs and benefits and the arousal of positive feelings—were more influential than the community‐related variables, such as sense of community and trust in institutions. Indications and suggestions for the design, implementation and evaluation of participatory settings were discussed. Copyright © 2009 John Wiley & Sons, Ltd.     

Chasing perception in domestic cats and dogs

Animal Cognition - Chasing motion is often used to study the perception of inanimate objects as animate. When chasing interaction and independent motions between two agents are displayed...     

Impairment of the Body Image: Perceptions and Subjective Evaluations in Adolescents and Young Adults

The construction of body image consists of the ways in which the body is considered, perceived, and evaluated. The ideal body image has been changing considerably over the centuries; the discrepancy between real and ideal body, today, leads many individuals to be dissatisfied with their body, develop negative feelings, and, in some cases, unhealthy behaviors. All this has led, in recent decades, to a sort of cult of the body. As a matter of fact, in Western culture the body has turned into an idol, a strict and demanding god to which one often becomes a slave. This article presents a bibliographical review on the main theories concerning body image, thus opening a space for reflection on its relative disorders, first of all that of body dysmorphism.