Response-dependent prechoice effects on foraging-related choice

Three experiments explored the influence of prechoice events on pigeons' preference. In two of three studies, a fixed-interval 200-second prechoice period preceded the initial links of a concurrent chain in which outcomes differed either (a) in terms of the delay to food or (b) in terms of amount of food and delay to food. In Experiment 3, the prechoice period preceded the initial links that provided a choice between a small single food presentation and two identical, more delayed food presentations. In all three cases, obtained choice proportions did not vary as a function of prechoice duration. These results suggest that a local-contextual view adequately describes the foraging context; they also have implications for the appropriate formulation of the delay-reduction theory of conditioned reinforcement and rate-maximizing views of optimal foraging theory.     

Confusion in philosophy: A comment on Williams (1992)

Patricia Williams made a number of claims concerning the methods and practise of cladistic analysis and classification. Her argument rests upon the distinction of two kinds of hierarchy: a divisional hierarchy depicting evolutionary descent and the Linnean hierarchy describing taxonomic groups in a classification. Williams goes on to outline five problems with cladistics that lead her to the conclusion that systematists should eliminate cladism as a school of biological taxonomy and to replace it either with something that is philosophically coherent or to replace it with pure methodology, untainted by theory (Williams 1992, 151). Williams makes a number of points which she feels collectively add up to insurmountable problems for cladistics. We examine Williams' views concerning the two hierarchies and consider what cladists currently understand about the status of ancestors. We will demonstrate that Williams has seriously misunderstood many modern commentators on this subject and all of her five persistent problems are derivable from this misunderstanding.

Nelson (1989, 67).

     

Secondary attention-deficit/hyperactivity disorder following perinatal and childhood stroke: impact on cognitive and academic outcomes

This cross-sectional retrospective clinical research study examines a large group of children followed within a pediatric stroke program and a developmental attention-deficit/hyperactivity disorder (ADHD) clinic at the Hospital for Sick Children, between May 2004 and June 2016. All children with a history of stroke who participated in a neuropsychological assessment between the ages of 4 and 18 years were considered for inclusion. From a sample of 275 participants with a history of stroke, 36 children (13.1%) received a diagnosis of secondary ADHD. Children with secondary ADHD were younger at the time of stroke and more likely to be identified as having a presumed perinatal stroke and persistent seizures than children without secondary ADHD diagnoses. There were no differences in pattern of lesion, size, or laterality between children who developed secondary ADHD and those who did not. Children with secondary ADHD had the lowest scores across all cognitive and academic measures compared to children with stroke-only and developmental ADHD. Findings highlight the added risk of receiving a diagnosis of secondary ADHD following pediatric stroke. Implications for future research and directed intervention are discussed.     

White Female Bystanders’ Responses to a Black Woman at Risk for Sexual Assault: Associations With Attitudes About Sexism and Racial Injustice

Women of color are affected by both sexism and racism. We examined White women’s attitudes about sexism (hostile and benevolent sexism) and racial injustice (White empathic responses to racism) as correlates of their responses to a Black woman at risk for an alcohol-related sexual assault. White undergraduate women (N = 172) reported on their attitudes and then completed measures of blame and willingness to intervene in response to a scenario in which a woman named “LaToya” is at risk. All 3 types of attitudes were directly related to victim blame, whereas only hostile sexism was directly, negatively related to willingness to intervene. White empathic responses to racism moderated the associations between benevolent sexism and both victim blame and willingness to intervene. Results suggest that among White female bystanders, both hostile and benevolent sexist attitudes were related to increased blame and reduced willingness to intervene to help Black women at risk. The adverse effects of benevolent sexism, however, were reduced for those with greater concerns about racial injustice.     

Understanding multiple dimensions of compensation satisfaction

We conducted meta-analyses of multiple dimensions of compensation satisfaction. An examination of 213 samples from 182 studies yielded several interesting findings of importance to practice and future research. We examined the relationships among four dimensions of compensation satisfaction (pay level, pay raises, benefit level, pay structure and administration satisfaction), and found that the three dimensions related to direct pay are highly related to one another. The relationships between benefits and the three direct pay dimensions were modest. We also analyzed antecedents, correlates, and consequences of the four compensation satisfaction dimensions. The antecedents of pay raise satisfaction have received the most attention, and our results indicate that both perceptual (e.g., perceptions of the basis for a pay raise) and objective (i.e., the amount of the pay raise) antecedents play roles in determining pay raise satisfaction. Previous research on the relationship between employee costs for benefits and benefit satisfaction have been inconclusive. The meta-analysis yields a modest, negative relationship between employee costs and benefit satisfaction. Additional results provide the foundation for our discussion of the current state of research in these areas, recommendations for practice, and suggestions for future research.     

Non-ruminative processing reduces overgeneral autobiographical memory retrieval in students

It has been suggested that overgeneral memory (OGM) represents a vulnerability marker for depression [Williams, J. M. G., Barnhofer, T., Crane, C., Hermans, D., Raes, F., Watkins, E., et al. (2007). Autobiographical memory specificity and emotional disorder. Psychological Bulletin, 133, 122-148]. One important underlying mechanism involved is rumination [e.g., Watkins, E., & Teasdale, J. D. (2001). Rumination and overgeneral memory in depression: Effects of self-focus and analytic thinking. Journal of Abnormal Psychology, 110, 353-357; Watkins, E., & Teasdale, J. D. (2004). Adaptive and maladaptive self-focus in depression. Journal of Affective Disorders, 82, 1-8]. It is as yet unclear to what extent the relationship between rumination and OGM also applies to nonclinical groups. The present study investigated this relationship in a nonclinical student sample, using an innovative sentence completion procedure to assess OGM. As hypothesized, the experimental induction of a concrete, process-focused (or non-ruminative) thinking style (n=102) led to less OGMs as compared to the experimental induction of an abstract, evaluative (or ruminative) thinking style (n=93). The present results add to the accumulating body of evidence that abstract, evaluative (or ruminative) thinking is a crucial underlying process of OGM, and expand prior literature by extending this idea to nonclinical individuals and by using a new procedure to assess OGM.     

Evaluation of stimulus control over a communication response as an intervention for stereotypical responding

Stereotypical behavior maintained by automatic reinforcement often does not result in harm but may be undesirable in some situations. In the current investigation, participants were 2 individuals who engaged in nonharmful stereotypical responses shown in an analogue functional analysis to be insensitive to social contingencies. After bringing these responses under stimulus control using differential punishment, both participants learned a mand to terminate punishment for stereotypy. We also assessed whether the mand could be brought under stimulus control.     

Intimate partner aggression reporting concordance and correlates of agreement among men with alcohol use disorders and their female partners

This study examined relationship aggression reporting concordance among 303 men with alcohol use disorders and their female partners enrolled in couples-based alcohol abuse treatment. Agreement for physical and psychological aggression was generally consistent with, or higher than, concordance rates reported among other populations. Men's antisocial personality disorder characteristics were the strongest predictor of higher concordance for male- and female-perpetrated aggression. Higher alcohol problem severity, poorer relationship adjustment, and higher psychopathic personality features were associated with better concordance in some analyses. Women reported experiencing more physical aggression than men reported perpetrating, and women reported perpetrating more psychological aggression than men reported experiencing. Findings highlight the importance of obtaining aggression reports from both partners and the need for research investigating methods for improving concordance.