The facing bias in biological motion perception: structure, kinematics, and body parts

Depth-ambiguous point-light walkers (PLWs) elicit a facing bias: Observers perceive a PLW as facing toward them more often than as facing away (Vanrie,Dekeyser, & Verfaillie, Perception, 33, 547-560, 2004). While the facing bias correlates with the PLW's perceived gender (Brooks et al., Current Biology, 18, R728-R729, 2008; Schouten, Troje, Brooks, van der Zwan, & Verfaillie, Attention, Perception, & Psychophysics, 72,1256-1260, 2010), it remains unclear whether the change in perceived in-depth orientation is caused by a change in perceived gender. In Experiment 1, we show that structural and kinematic stimulus properties that lead to the same changes in perceived gender elicit opposite changes in perceived in-depth orientation, indicating that the relation between perceived gender and in-depth orientation is not causal. The results of Experiments 2 and 3 further suggest that the perceived in-depth orientation of PLWs is strongly affected by locally acting stimulus properties. The facing bias seems to be induced by stimulus properties in the lower part of the PLW.     

Continuance commitment and turnover: Examining the moderating role of negative affectivity and risk aversion

This paper examines the moderating role of negative affectivity and risk aversion in the relationships of two bases of continuance organizational commitment (continuance–sacrifices and continuance–alternatives) to turnover, within a stress–coping perspective. More specifically, we propose that (a) the perspective of leaving is a source of stress for those who stay due to the fear of losing valued advantages (i.e. high continuance–sacrifices commitment) and (b) staying is perceived to be stressful by individuals who remain based on a lack of employment alternatives (i.e. high continuance–alternatives commitment). We argue that these perceptions are magnified by negative affectivity and risk aversion, resulting in individuals who present these traits to use avoidance–withdrawal strategies in coping with these situations. Accordingly, based on a sample of 509 human resource management professionals, we found (a) negative affectivity and risk aversion to strengthen the negative relationship of continuance–sacrifices commitment to turnover and (b) continuance–alternatives commitment to relate positively to turnover among individuals with high negative affectivity. We discuss the implications of these findings for our understanding of how commitment mindsets and personality traits affect turnover decisions.     

Life hassles, experiential avoidance and distressing delusional experiences

Life hassles have been implicated in both the formation and maintenance of psychosis symptoms. However, little is understood about the mechanism through which these stressors impact on psychosis. The current study proposed experiential avoidance (EA), a psychological coping style that is a central focus for change in Acceptance and Commitment Therapy (ACT), as a potential mediator of the link between life hassles and both the emergence and maintenance of delusional ideation. Participants were recruited to a non-clinical sample (N = 133) and a clinical sample of psychosis patients (N = 100). All participants completed a self-report questionnaire including a measure of delusions and delusional distress (Peters Delusions Inventory), life hassles (Survey of Recent Life Experiences) and EA (Acceptance and Action Questionnaire-II). Mediation testing (bootstrapping) indicated a significant mediation effect of EA in the relationship between life hassles and both delusions and delusional distress, in both clinical and non-clinical samples. The findings suggest that individuals (irrespective of their diagnostic status) with a tendency to suppress or avoid unwanted thoughts are significantly more likely to experience distressing delusions in response to stressful life occurrences. The use of ACT and Cognitive Behavioural Therapy to reduce EA in those at risk of emerging delusions and in patients with an already established psychosis is discussed.     

Factor structure analysis of the Preschool and Kindergarten Behavior Scale scores in Spanish population

Social competence and antisocial behavior in children are interesting variables for researchers and educators. Nonetheless, there are few assessment instruments capable of measuring the two constructs in small children. The aim of this study is to verify the structural validity of the Preschool and Kindergarten Behavior Scale for Teachers and Caregivers (PKBS-2), in order to determine the theoretical model that best fits the data from a Spanish sample. 1509 children from preschool education (741 males and 768 females) from 3 to 6 years old (M= 3.78; SD= 0.815) participated in the study. Data was analyzed using the Statistical Package for the Social Sciences (SPSS-15.0) and the Structural Equations Program (EQS 6.1). The resulting models of social skills and behavioral problems show adequate fit indexes, statistically significant loadings, and a high internal consistency index (Cronbach's alpha). Lastly, the structural model confirms a two-factor structure: a first factor of Social Skills, comprising three variables (social cooperation, social interaction, and social independence), and a second factor of Behavior Problems, comprising two variables (externalization and internalization of problems).     

Contact theory in the workplace: The case of Jewish–Arab contact in Israel

Contact theory is a fundamental theory in social psychology, suggesting that contact between antagonistic groups can reduce prejudice and stereotypes. The current study applies former studies in evaluating a specific case of the connection between contact and attitudes toward minorities in work contexts. A survey was conducted using 873 Israeli Jews in order to assess their attitudes toward the Arab population in Israel and Arabs' work characteristics. The results indicated that the connection between intergroup contact and attitudes is complex. On the one hand, workplace contact between Israeli Jews and Arabs was significantly correlated with the willingness to meet Arabs in and outside the workplace and to perceive Arabs in a less threatening way. However, contact during work was not significantly correlated with the participants' general attitude toward the Arab population. In addition, contact during work was not found to be significantly correlated with the participants' perceptions about Arabs' personality traits or work characteristics. The results of this study also suggest that attitudes toward Arabs' work characteristics have a strong connection to other dimensions of attitudes toward Arabs, even more than the impact of contact during work.     

Visual associations to retrieve episodic memory across healthy elderly,mild cognitive impairment,and patients with Alzheimer’s disease

Episodic memory tests need to determine the degree to which patients with moderate to severe memory deficits can still benefit from retrieval support. Especially in the case of Alzheimer’s disease (AD), this may support health care to be more closely aligned with patients’ memory capacities. We investigated whether the different measures of episodic memory of the Visual Association Test-Extended (VAT-E) can provide a more detailed and informative assessment on memory disturbances across a broad range of cognitive decline, from normal to severe impairment as seen in AD, by examining differences in floor effects. The VAT-E consists of 24 pairs of black-and-white line drawings. In a within-group design, we compared score distributions of VAT-E subtests in healthy elderly controls, mild cognitive impairment (MCI), and AD (n = 144), as well as in relation to global cognitive impairment. Paired associate recall showed a floor effect in 41% of MCI patients and 62% of AD patients. Free recall showed a floor effect in 73% of MCI patients and 84% of AD patients. Multiple-choice cued recognition did not show a floor effect in either of the patient groups. We conclude that the VAT-E covers a broad range of episodic memory decline in patients. As expected, paired associate recall was of intermediate difficulty, free recall was most difficult, and multiple-choice cued recognition was least difficult for patients. These varying levels of difficulty enable a more accurate determination of the level of retrieval support that can still benefit patients across a broad range of cognitive decline.