Psychopathy,frustration, and reactive aggression: The role of ventromedial prefrontal cortex

Psychopathy is a developmental disorder marked by emotional hyporesponsiveness and an increased risk for instrumental and reactive aggression. The increased risk for reactive aggression is the focus of the current paper. It will be argued that the increased risk for reactive aggression does not relate to an increased sensitivity to threatening stimuli since psychopathy is associated with a reduced sensitivity to threat. Instead, it is argued that the increased risk for reactive aggression relates to an increased risk for frustration; i.e., the emotional state following the performance of an action in the expectation of a particular reward and not receiving this reward. Two impairments seen in psychopathy would increase the risk for frustration and consequent potential reactive aggression; impairments in stimulus‐reinforcement learning and reversal learning. It is argued that both are known consequences of impairment in ventromedial prefrontal cortex, one of the regions principally implicated in psychopathy.     

Do Parents’ Adverse Childhood Experiences Influence Treatment Responses to Parent-Child Interaction Therapy? An exploratory Study with a Child Welfare Sample

This exploratory study of 23 parent–child dyads receiving child welfare services examined the association between the number of adverse childhood experiences (ACEs) parents reported and their children’s externalizing behaviors. We also assessed whether the effects of Parent-Child Interaction Therapy (PCIT) on externalizing behaviors varied by parents’ ACE histories. Results indicated that parents’ ACE scores were associated with child externalizing symptoms at baseline, but not at a second postbaseline assessment. Although all parents reported reductions in child externalizing behavior from baseline to postbaseline, only reductions reported by parents with four or more ACEs were statistically significant. Implications for implementing PCIT with trauma-exposed families are discussed.     

Group structure and entitativity in group fitness: considering groupness at within- and between-group levels

Objective: How can we distinguish between a collection of individuals exercising alongside one another from group that is exercising ‘together’? This question is central to research on the extent that individuals perceive their fitness settings to entail core features of groups. To advance understanding of the nature of groupness and its implications in exercise, the current study (a) evaluated a brief measure of groupness and (b) examined the extent that groupness predicted perceptions of exertion and affect.

Design: Participants included 633 exercisers (M_age?=?33.92, SD?=?11.05, 74% female) who completed surveys after group fitness classes (k?=?34).

Main outcome measures: Groupness, affect, exertion, and group cohesion.

Results: Exploratory structural equation modelling provided support for a two-factor solution reflecting entitativity and group structure as subdimensions of groupness. The groupness factors were differentially associated with theoretically relevant aspects of classes (e.g. synchronised movement), the individual (e.g. number of members interacted with), as well as group cohesion. Groupness also predicted perceived exertion and affect.

Conclusion: Our research provides support for a brief measure of groupness, advances theory related to how individuals perceive exercise groups, and provides evidence regarding how broader experiences during exercise may relate to exercisers’ perceptions of groupness.     

Childhood Overweight and Obesity: Maternal and Family Factors

Treatment programs for childhood overweight and obesity have highlighted the importance of the family in treatment. Considering this, it is surprising that few studies have examined the role of family factors in the development of childhood overweight and obesity. The objective of this study was to examine which family and maternal factors predict increases in weight in boys and girls during middle to late childhood. This study used longitudinal data from the childhood growth and development (GAD) Study. The GAD Study involved 286 healthy weight, overweight and obese children, aged 6–13 years at baseline, who completed baseline, 1-year follow-up and 2-year follow-up assessments. Overweight/obese children were recruited from clinical and community settings. A broad range of maternal and family factors were assessed. Linear mixed models were used to identify which factors predicted child Body Mass Index (BMI) z-scores over time. For community-based children, maternal BMI and single-parent family structure were significant longitudinal predictors of child BMI z-scores. For the clinical participants, low family income was the only significant multivariate predictor of child BMI z-scores. The strong association between child BMI, maternal BMI and family structure confirms the need to target prevention and intervention efforts for childhood overweight and obesity towards families with overweight parents, particularly single-parent families.     

A Comparison of Underage,Young, Middle,and Late Adults in Indicated Prevention Following Impaired Driving

The authors examined age differences in baseline features and program response in individuals completing indicated prevention (Prime For Life^®) for impaired driving. Risk perception, substance use, and support differed by age at baseline and, despite improvements, continued to differ postprogram.     

Expertise in Deception Detection Involves Actively Prompting Diagnostic Information Rather Than Passive Behavioral Observation

In a proof‐of‐concept study, an expert obtained 100% deception‐detection accuracy over 33 interviews. Tapes of the interactions were shown to N = 136 students who obtained 79.1% accuracy (Mdn = 83.3%, mode = 100%). The findings were replicated in a second experiment with 5 different experts who collectively conducted 89 interviews. The new experts were 97.8% accurate in cheating detection and 95.5% accurate at detecting who cheated. A sample of N = 34 students watched a random sample of 36 expert interviews and obtained 93.6% accuracy. The data suggest that experts can accurately distinguish truths from lies when they are allowed to actively question a potential liar, and nonexperts can obtain high accuracy when viewing expertly questioned senders.     

Expression recognition and behavioural problems in early adolescence

The processing of emotional expressions is fundamental for normal socialisation and social interaction. Fifty-five children (aged 11–14 years) in mainstream education participated in this study. They were presented with a standardised set of pictures of facial expressions and asked to name one of the six emotions illustrated (sadness, happiness, anger, disgust, fear, and surprise). Following experimental testing, their behaviour was rated by two independent teachers on the Psychopathy Screening Device (PSD). The PSD assesses two dimensions of behavioral problems: affective-interpersonal disturbance and impulsive behaviour/conduct problems. The results showed that the ability to recognise sad and fearful expressions (but not happy, angry, disgusted, or surprised expressions) was inversely related to both level of affective-interpersonal disturbance and impulsive/conduct problems. These results are interpreted with reference to current models of empathy and its disorders.