Long-Term conditioned fear modification in the dog as measured by changes in urinary 11-hydroxycorticosteroids. Heart rate and behavior

Heart rate (HR), operant key pressing, and urinary 11-hydroxycorticosteroids (11-OH-CS) were recorded while dogs were subjected to various aversive conditioning schedules over a six-month period. The schedules consisted of Sidman avoidance, followed by a Sidman schedule which paired unavoidable shocks (US) with offset of seven discrete conditioned stimuli (CS). Introduction of the Sidman avoidance schedule led to an increase in HR. Changes in the experimental schedule always results in an increase in urinary 11-OH-CS. Neither HR nor urinary 11-OH-CS were correlated with rate of operant key pressing. Differences in the dependent variables reflected the different topological characteristics of the dogs studied. This study demonstrated: (a) a causal independence of physiological and behavioral responses conditioned to the same stimulus complex, and (b) that longterm increases in HR can be maintained if the experimental situation is manipulated to maintain the fear eliciting characteristics of the conditioning situation.     

A l'occasion du renouvellement de l'annee

Sans résumé     

Links Among Cognitive Empathy,Theory of Mind,and Affective Perspective Taking by Young Children

The authors investigated the development of the affective, cognitive, and behavioral components of empathy in preschoolers, specifically examining how cognitive empathy is linked to theory of mind and affective perspective taking. Participants were 158 children aged 4–6 years. They listened to narratives and then answered questions about the protagonists' emotions. The affective component was probed with the question, “How do you feel seeing the little girl/boy?”; the cognitive component with the question, “Why do you feel [emotion shared with the character]?”; and the behavioral one with the question, “What would you do if you were next to the little boy/girl [experiencing an emotional scenario]?” Results revealed a developmental sequence in the self-focused attribution of cognitive empathy, and a trend toward a developmental sequence for behavioral empathy, which underwent a slight linear increase between 4 and 6 years old. Affective empathy remained stable. More interestingly, they showed that cognitive empathy is linked to both theory of mind and affective perspective taking.     

Neuroticism and Depression in Children: The Role of Cognitive Emotion Regulation Strategies

This study's general objective was to analyze whether different types of cognitive emotion regulation strategies (CERS), namely adaptive strategies—specifically positive refocusing and positive reappraisal—and maladaptive strategies—self-blame, catastrophizing, and rumination—mediated the neuroticism-depression relationship in children 9–12 years old, and whether gender and school transition moderated the relationships proposed. A self-reporting measure was administered to 315 children to evaluate said variables. The resulting data were analyzed using structural equations. The study verified that maladaptive CERS partially mediated neuroticism's relationship with depression, while adaptive CERS, though negatively associated with depression, did not show a mediating effect on this relationship. The results provide evidence of the mediating function of maladaptive CERS on the neuroticism-depression relationship. Gender and school transition did not moderate the relationships proposed. Because, by their very nature, these strategies are modifiable, these results constitute an important finding that can be transferred to the design and content of child mental health prevention and promotion programs.     

Self-Criticism and Depressive Symptoms Mediate the Relationship Between Emotional Experiences With Family and Peers and Self-Injury in Adolescence

Although the relationship between negative childhood experiences, peer victimization, depressive symptoms, and Non-Suicidal Self-Injury (NSSI) is widely recognized, the mechanisms involved are not fully understood, especially among adolescents. This study aims to test the mediating role of both self-criticism and depressive symptoms in the relationship between memories of negative or positive experiences, current peer victimization, and NSSI. The sample consists 854 Portuguese adolescents, 451 female and 403 male, with ages between 12 and 18 years (M = 14.89; SD = 1.79), from middle and secondary schools. Participants answered self-report measures. Results from path analysis showed that memories of negative experiences, the absence of positive memories with family in childhood and peer victimization indirectly impact on NSSI through self-criticism and depressive symptoms. In addition, these stressful experiences led to depressive symptoms through self-criticism. Lastly, the most severe form of self-criticism indirectly impacts on NSSI through depressive symptoms, even though it also has a strong direct effect. It suggests that negative experiences with parents and peer victimization, as well as the absence of positive memories with family, have a negative impact on NSSI when these experiences are linked with a sense of self-hatred and depressive symptoms.