Effects of Stimulus Dimension on the Emergence of Transitivity Relations

The Psychological Record - The effect of stimuli dimension was assessed on the emergence of transitivity relations by the use of a go/no go procedure and the training of identity relations. Four...     

Mindfulness and psychological distress in men during the COVID-19 pandemic: The mediating role of environmental mastery and purpose in life

Men's mental health has been severely affected during the COVID-19 pandemic, with many studies focussing on the determinants of men's psychological distress. This study aimed at examining the relationships between mindfulness, environmental mastery (EM), purpose in life (PL) and indicators of psychological distress (i.e., common mental disorders and perceived stress). This was a cross-sectional online study in which participants were 1,006 men aged between 29 and 39 years (45.1%), residing in Brazil during the first wave of the COVID-19 pandemic. A parallel multiple mediator model was used to test the study variables' relationships, using mindfulness as the independent variable and indicators of psychological distress as the dependent variables. Results indicated that EM and PL significantly mediated the effects of mindfulness on men's psychological distress, lowering its levels and accounting for 31% of common mental disorders and 51% of perceived stress. Implications for public health policies and clinical practice are discussed.     

How prosimian primates represent tools: experiments with two lemur species (Eulemur fulvus and Lemur catta)

The authors examined how 2 lemur species (Eulemur fulvus and Lemur catta) reason about tools. Experiment 1 allowed subjects to use 1 of 2 canes to retrieve an inaccessible food reward. Lemurs learned to solve this problem as quickly as other primates. Experiment 2 then presented subjects with novel tools differing from the originals along one featural dimension. Subjects attended more to tools' sizes than to their colors and made no distinction between tools' shapes and textures. Experiments 3 and 4 presented problems in which some of the tools' orientations had to be modified relative to the food. Subjects performed well on these problems, sometimes modifying the position of the tool. These results are discussed in light of the performance of other primates on this task.     

Exploring the evolutionary origins of overimitation: a comparison across domesticated and non‐domesticated canids

When learning from others, human children tend to faithfully copy – or ‘overimitate’ – the actions of a demonstrator, even when these actions are irrelevant for solving the task at hand. We investigate whether domesticated dogs (Canis familiaris) and dingoes (Canis dingo) share this tendency to overimitate in three experiments. In Experiment 1, dogs and dingoes had the opportunity to solve a puzzle after watching an ostensive demonstrator who used both a relevant action and an irrelevant action. We find clear evidence against overimitation in both species. In contrast to human children (Horner & Whiten, 2005), dogs and dingoes used the irrelevant action less often across trials, suggesting that both species were filtering out the irrelevant action as they gained experience with the puzzle (like chimpanzees; Horner & Whiten, 2005). Experiments 2 and 3 provide further evidence against overimitation, demonstrating that both species’ behavior is better characterized by individual exploration than overimitation. Given that both species, particularly dogs, show human‐like social learning in other contexts, these findings provide additional evidence that overimitation may be a unique aspect of human social learning. A video abstract of this article can be viewed at: https://youtu.be/g2mRniJZ7aU .     

Portuguese Mothers and Fathers Share Similar Levels of Work-Family Guilt According to a Newly Validated Measure

Transformations in family and work life have led to profound changes in the articulation of both spheres. The massive entry of women into the labor market, the decline of a family model based on the male provider, increasing job demands, and persistent gender inequality are factors that can generate work-family conflict and lead to feelings of guilt. Work-family guilt is a topic still rarely studied, particularly in Portugal. Given the importance of understanding the complexity of the relationships underlying the work-family interface and the lack of instruments in Portuguese to assess the feeling of guilt as it pertains to the work-family interface, our goal was to adapt the Work-Family Guilt Scale (WFGS) to the Portuguese population. Our results confirmed the two-dimensional structure of the scale with good reliability and validity. The WFGS was invariant between genders, with no significant mean differences between men and women. Convergent validity with the variables of work-to-family and family-to-work conflict and discriminant validity between the two dimensions of the WFGS was demonstrated. Use of this scale will allow the identification of feelings of guilt, which pose risks to the physical, emotional and psychological well-being of workers. Guilt feelings should, like conflict, be considered as a psychosocial risk that must be mitigated through policies and practices aimed at promoting a balance between family and working life.     

Summer Treatment Program for Preschoolers with Externalizing Behavior Problems: a Preliminary Examination of Parenting Outcomes

Within an at-risk sample of preschoolers with externalizing behavior problems (EBP), the current study examined the initial promise of a multimodal intervention, the Summer Treatment Program for Pre-Kindergarteners (STP-PreK), in improving parenting outcomes. Using an open trial design, 154 parents and their preschool children (73% male; M _age = 5.06 years; 82% Hispanic/Latino background) with at-risk or clinically elevated levels of EBP (57% of which were referred by schools or mental health/medical professionals) completed a baseline and post-treatment assessment. A subsample of 90 families completed a follow-up assessment approximately 6 to 9 months after treatment completion. Parental measures of parenting stress and discipline strategies were collected across all three assessments. Observational data were also collected across all assessments during a 5-min standardized child-led play situation and a 5-min parent-led clean up task. The parenting component of the STP-PreK included a School Readiness Parenting Program (SRPP) of which the behavioral management component was implemented via a Parent-Child Interaction Therapy (PCIT) adaptation (8 weekly group sessions with 15–20 parents in each group, lack of requirement of “mastery” criteria). All parenting outcomes (both ratings and observed) significantly improved after the intervention (Cohen’s d mean effect size across measures 0.89) with all effects being maintained at the 6–9 month follow-up. These findings highlight the initial promise of our SRPP’s PCIT adaptation in targeting multiple aspects of parenting while yielding comparable parenting skills acquisition compared to traditional individual PCIT.