A graphic representation of the effects of cohabitation upon aggression in pregnant mice

Cohabitation with a pregnant cagemate tends to stimulate aggression of a pregnant mouse as well as a nonpregnant (but mated) female resident mouse toward male intruders [Buhot-Averseng and Goyens, 1981]. An illustration of these results provided by three measures of aggressiveness is proposed, using a new type of simple geometric graph. These graphs allow an easy comparison between the measures used and between the different experimental groups with regard to both of the following factors: (1) mating and pregnancy in the subject, and (2) presence and pregnancy of a cagemate.     

EFFECT OF REINFORCEMENT PROBABILITY AND PRIZE SIZE ON COCAINE AND HEROIN ABSTINENCE IN PRIZE‐BASED CONTINGENCY MANAGEMENT

Although treatment outcome in prize‐based contingency management has been shown to depend on reinforcement schedule, the optimal schedule is still unknown. Therefore, we conducted a retrospective analysis of data from a randomized clinical trial (Ghitza et al., 2007) to determine the effects of the probability of winning a prize (low vs. high) and the size of the prize won (small, large, or jumbo) on likelihood of abstinence until the next urine‐collection day for heroin and cocaine users (N = 116) in methadone maintenance. Higher probability of winning, but not the size of individual prizes, was associated with a greater percentage of cocaine‐negative, but not opiate‐negative, urines.     

Group processes in food choices: The role of ethnic identity and perceived ethnic norms upon intentions to purchase ethnical food products

A study tested an extended Theory of Planned Behaviour (TPB) model, inclusive of measures of ethnical identification and perceived ethnic group norms, in the ethnical food purchasing domain. One hundred and thirty‐five Jamaicans, living in the Brixton neighbourhood, London, were administered a self‐reported questionnaire measuring the classical TPB components (attitudes, subjective norms, perceived behavioural control, behavioural intentions) plus three additional components: identification with the Jamaican group, perceived norms of the Jamaican group and past behaviour. Results of hierarchical multiple regressions showed that past behaviour, ethnical identification and perceived group norms explain an additional proportion of variance in intentions, independently of attitudes, subjective norms and perceived control. A two‐way interaction, between ethnical identification and perceived group norms, was detected. A stronger relation between group norms and intentions emerged among high ethnical identifiers. Theoretical and practical implications are discussed. Copyright © 2008 John Wiley & Sons, Ltd.     

Moderating effect of situational strength on the relationship between personality traits and counterproductive work behaviour

The present study investigated the extent to which the strength of situations moderates the relations between personality traits and counterproductive work behaviour (CWB). It was hypothesized that the relations between personality traits and CWB would vary across strong and weak situations. In addition, there would be an interaction between conscientiousness and agreeableness in predicting CWB. As predicted, the results showed that the effect of personality on CWB depended on the strength of situations. The results also indicated that, in a weak situation only, conscientiousness has a stronger, negative relation to CWB when agreeableness is low than when agreeableness is high.     

Social learning theory and cognitive behavioral models of body dysmorphic disorder

Contemporary cognitive behavioral models of body dysmorphic disorder are reviewed, whereby the first by Neziroglu and colleagues emphasizes conditioning processes and relational frame theory and the latter by Veale emphasizes information processing. A brief review of the existing cognitive behavioral therapy research follows the presentation of the models. The majority of publications on BDD continue to deal with phenomenology and epidemiology, and much more research on cognitive behavioral treatment is needed. Treatment research should be geared towards testing elements of the models explicated in this article, and randomized controlled trials are greatly needed.     

Differences in personality between sustained hypertension,isolated clinic hypertension and normotension

The aim of this study was to determine whether there are differences in personality between hypertension and normotension. Forty‐two male patients with essential hypertension were divided into two groups after self‐assessment of blood pressure, 18 with sustained hypertension and 24 with isolated clinic (white coat) hypertension, and were compared with 25 men with normotension on Spielberger's State‐Trait Anxiety Inventory and the Jenkins Activity Survey. In line with hypotheses, the sustained hypertensive group showed higher levels of trait anxiety, Type A behaviour pattern, and hard‐driving behaviours/competitiveness than the normotensive group, whereas isolated clinic hypertensives occupied an intermediate position between those two groups. Results provide support to the hypothesised relationship between personality and hypertension and stress the need of distinguishing sustained hypertension from isolated clinic hypertension. Copyright © 2006 John Wiley & Sons, Ltd.     

Parental personality,parenting and toddlers' externalising behaviours

This study examined the mediating role of parenting on the relation between parental personality and toddlers' externalising behaviours. Participants were 112 boys and their parents. The data were analysed using multilevel modelling and moderated mediation analyses. Several associations were found between parental personality and parenting dimensions. Additionally, several parenting dimensions were associated with children's externalising behaviours. Emotional stability was the only parental personality trait that was related to children's externalising behaviours. The effect of maternal emotional stability on children's aggressive behaviours appeared to be mediated by maternal support. For fathers, there appeared to be a direct effect of emotional stability on children's aggressive behaviours. In addition, for both mothers and fathers, emotional stability was directly related to children's attention problems. Copyright © 2007 John Wiley & Sons, Ltd.     

THE ANALYSIS OF BEHAVIOR WHAT'S IN IT FOR US?

When we publish behavioral research, we are not allowed to communicate the thrill, the poetry, or the exhilaration that are outcomes of the discovery process. Yet, these are among our most potent reinforcers. Explicit recognition of the emotional accompaniments to research could help attract students into the experimental analysis of behavior.     

Autonomy,free speech and automatic behaviour

One of the strongest defences of free speech holds that autonomy requires the protection of speech. In this paper I examine five conditions that autonomy must satisfy. I survey recent research in social psychology regarding automatic behaviour, and a challenge to autonomy is articulated. I argue that a plausible strategy for neutralising some of the autonomy-threatening automatic responses consists in avoiding the exposure to the environmental features that trigger them. If this is so, we can good autonomy-based pro tanto reasons for controlling exposure to certain forms of speech. Earlier drafts of this paper were presented in the 2005 Warwick Graduate Conference in Political theory, the 2005 ALSP Conference at the University of Strathclyde, and the Discussion Group of Political Theory at Warwick University. I am grateful for the many comments received on those occasions, especially to Peter Jones, Graham Long, Glen Newey, Fabienne Peter, Jonathan Seglow and Will Smith. Two anonymous referees for Res Publica gave me helpful comments that benefited the argument defended here. Especial thanks are due to Matthew Clayton and Susan Hurley who provided me with detailed written comments and fruitful discussion.