The Need for an Encyclopedia of Psychological Information

The relationship was examined between judgments of relative distance and judgments of relative size made over a surface on which the packing density of the texture elements was progressively increased, from one end of the surface to the other along the S's line of sight. Significant positive correlations were obtained between distance and size judgments made by 32 Ss. This confirmed a weak version of the size-distance invariance hypothesis and supported a prediction contained in Gibson's theory of space perception.     

Competitive personality attitudes and forgiveness of others

The authors conducted a survey to determine whether competitive attitudes are differentially associated with forgiveness or lack of forgiveness of others. The results showed that hypercompetitiveness was associated with a lack of forgiveness, whereas personal development competitiveness was associated positively with forgiveness. Discussion centers on the need to discourage socialization practices that foster the adoption of a self-contained individualism that is associated with a maladaptive hypercompetitiveness. Instead, parents should promote an ensembled individualism that is associated with a psychologically healthy personal development competitive orientation.     

Adaptive and maladaptive personality traits as predictors of violent and nonviolent offending behavior in men and women

The aim of this study was to assess both violent and nonviolent offending behavior in a single, mixed‐sex population. The rationale for this is that the two types of offending are usually researched separately, despite evidence that they overlap. A comprehensive measure of general violence, intimate partner violence (IPV), and nonviolent offending behavior was administered to 116 men and 181 women, together with measures of personality and personality disorder (PD) traits, to investigate whether predictors of violent and nonviolent offending were similar or different for men and women. Men were found to perpetrate higher levels of general violence and nonviolent offenses than women, but women perpetrated significantly more IPV than men. Cluster B PD traits predicted all three offense types for women and also men's general violence and nonviolent offending. Women's general violence and men's non‐violence also had one unique risk factor each, low agreeableness, and low conscientiousness, respectively. The main difference was for IPV, where men's IPV was predicted by cluster A PD traits, indicating that men's and women's risk factors for IPV may be different, although their risk factors for the other offense types were fairly consistent. Aggr. Behav. 36:177–186, 2010. © 2010 Wiley‐Liss, Inc.     

The Effects of Atropine and Adrenergic Antagonists on Behavioral Arousal in Rats

Two experiments investigated the mechanism for changes in measures of behavioral arousal inhibition in rats following administration of atropine. In Experiment 1, 40-day-old rats were given administrations of atropine sulfate, the α-, β-adrenergic blocker labetalol, or both. The drugs, either alone or in combination, increased transport response intensity, whereas both together increased dorsal immobility durations. In Experiment 2, rats were given atropine, the β-adrenergic antagonist propranolol, the α-adrenergic antagonist phentolamine, or a combination of two of the drugs. Propranolol blocked atropine-induced increases in transport response, and phentolamine was without effect. Phentolamine, when combined with atropine, increased dorsal immobility durations. Results are discussed with respect to aspects common to both transport response and dorsal immobility.     

The Moderating Impact of Social Networks on the Relationships Among Core Values,Partisanship, and Candidate Evaluations

Social networks are increasingly becoming recognized as a source of influence on political attitudes and behavior. In this study, we examine the moderating impact of social networks on the relationship among several attitudes. We argue that those who regularly interact with individuals with different views from their own will be more likely to think of themselves in nonpartisan terms. It is therefore hypothesized that an individual's discussion network influences the relationship between one's support for various core values and one's partisanship. As a corollary, we argue that disagreement in discussion networks reduces individuals' reliance on partisanship when forming subsequent attitudes. To test these propositions, we employ data asking respondents to list individuals with whom they discuss politics on a regular basis and who such individuals supported in a recent election to create a measure of network disagreement. Empirical tests provide strong support for our hypotheses.