The psychosemantics of free riding: dissecting the architecture of a moral concept

For collective action to evolve and be maintained by selection, the mind must be equipped with mechanisms designed to identify free riders--individuals who do not contribute to a collective project but still benefit from it. Once identified, free riders must be either punished or excluded from future collective actions. But what criteria does the mind use to categorize someone as a free rider? An evolutionary analysis suggests that failure to contribute is not sufficient. Failure to contribute can occur by intention or accident, but the adaptive threat is posed by those who are motivated to benefit themselves at the expense of cooperators. In 6 experiments, we show that only individuals with exploitive intentions were categorized as free riders, even when holding their actual level of contribution constant (Studies 1 and 2). In contrast to an evolutionary model, rational choice and reinforcement theory suggest that different contribution levels (leading to different payoffs for their cooperative partners) should be key. When intentions were held constant, however, differences in contribution level were not used to categorize individuals as free riders, although some categorization occurred along a competence dimension (Study 3). Free rider categorization was not due to general tendencies to categorize (Study 4) or to mechanisms that track a broader class of intentional moral violations (Studies 5A and 5B). The results reveal the operation of an evolved concept with features tailored for solving the collective action problems faced by ancestral hunter-gatherers.     

BIS and BAS interact with perceived parental affectionless control to predict personality disorder symptomatology

The objective of this study was to examine if and how two basic dimensions of temperament-behavioral inhibition system (BIS) and behavioral approach system (BAS) sensitivity-might interact with exposure to perceived parental affectionless control (AFC) to predict personality disorder (PD) symptomatology. Measures of BIS, BAS, AFC, and PD symptomatology were administered to a large nonclinical sample (n = 318). As predicted, exposure to AFC was positively associated with PD symptoms in general, BIS was positively associated with Cluster A and C symptoms, and BAS was positively associated with Cluster B symptoms. BIS and BAS were also found to interact with each other to predict Cluster B symptomatology. In addition, BIS, BAS, and maternal AFC interacted to predict Cluster A symptomatology. In the latter case, it was found that individuals who reported high BIS, high BAS, and high maternal AFC reported the highest overall level of Cluster A symptoms.     

A survey of groups within a psychiatric hospital

Summary

The findings of a survey of the involvement of staff in group activities within a large psychiatric hospital are presented. Over two hundred regular group meetings were being held, excluding ward-rounds and business meetings. There was a wide variation in the type and structure of the groups, the purpose and theoretical underpinning of many of which were unclear to the participants. It is suggested that this lack of clarity reflects the fact that the original therapeutic aims have been subverted in the service of institutionalised defences against anxiety. To be therapeutically effective, groups need clear leadership, good supervision and well-defined aims.     

Origins of adolescents’ earliest memories

ABSTRACT

This prospective longitudinal study traced changes and individual differences in childhood amnesia over adolescence. A sample of 58 adolescents were followed from age 1-1/2 to age 16 years across 8 timepoints. At ages 12 (n?=?46) and 16 (n?=?51), adolescents completed an early memory interview. Early childhood measures included children’s self-awareness, attachment security, nonverbal memory, verbal memory, language, theory of mind, narrative, and the early reminiscing environment (mothers’ elaborative reminiscing). Adolescents continued to forget their earliest memories over adolescence, such that the age of first memory increased from 40 to 52 months from ages 12 to 16. The sole unique contributor to individual differences in age of earliest memory at both 12 and 16 years was mothers’ elaborative reminiscing, with adolescents recalling earlier memories if their mothers had reminisced more elaboratively with them during early childhood. At age 16, the role of maternal reminiscing was moderated by self-awareness at age 1-1/2. Mothers’ elaborative reminiscing mattered for the age of adolescents’ earliest memories only for children who showed lower levels of self-awareness as toddlers. This pattern suggests a buffering effect for the role of maternal reminiscing in children’s earliest memories, and supports integrated theories of childhood amnesia.     

Elementary Students’ Motivation to Read and Genre Preferences

Abstract

This study examines the psychometric properties of a reading motivation measure with a sample of upper elementary students in the United States (n?=?195). The research explores upper elementary students’ motivation to read, the amount/frequency of their reading in general, and their preferences for different text genres. Factor analyses support the validity and reliability of the SRQ-RM for upper elementary students in the United States, a tool not previously used with this population. This study also included a nuanced assessment of students’ genre preferences, which has implications for reading motivation and effective classroom instruction.