Mirror Neuron System and Mentalizing System connect during online social interaction

Two sets of brain areas are repeatedly reported in neuroimaging studies on social cognition: the Mirror Neuron System and the Mentalizing System. The Mirror System is involved in goal understanding and has been associated with several emotional and cognitive functions central to social interaction, ranging from empathy to gestural communication and imitation. The Mentalizing System is recruited in tasks requiring cognitive processes such as self-reference and understanding of other’s intentions. Although theoretical accounts for an interaction between the two systems have been proposed, little is known about their synergy during social exchanges. In order to explore this question, we have recorded brain activity by means of functional MRI during live social exchanges based on reciprocal imitation of hand gestures. Here, we investigate, using the method of psychophysiological interaction, the changes in functional connectivity of the Mirror System due to the conditions of interest (being imitated, imitating) compared with passive observation of hand gestures. We report a strong coupling between the Mirror System and the Mentalizing System during the imitative exchanges. Our findings suggest a complementary role of the two networks during social encounters. The Mirror System would engage in the preparation of own actions and the simulation of other’s actions, while the Mentalizing System would engage in the anticipation of the other’s intention and thus would participate to the co-regulation of reciprocal actions. Beyond a specific effect of imitation, the design used offers the opportunity to tackle the role of role-switching in an interpersonal account of social cognition.     

Associations Between Mixed-Gender Friendships,Gender Reference Group Identity and Substance Use in College Students

We investigated the associations between same-gender friendship, gender reference group identity, and substance use in college students (54 % male, M age?=?19.23, SD?=?1.23) from the northeastern United States using an online survey. Male students reported greater weekly marijuana, but not alcohol use than female students. Regression analyses revealed that having a greater proportion of same-gender friendships was associated with greater weekly alcohol use for male students and lesser weekly alcohol and marijuana use for female students. Gender reference group identity was negatively associated with weekly marijuana use for male and female students. For female students, gender reference group identity mediated the association between proportion of same-gender friendships and weekly marijuana use. Our study highlights the importance of considering the social context (e.g., the gender of friends) and individual variables relating to gender (e.g. gender reference group identity) in substance use research. Our findings fit within social constructionist models of social development that suggest participation in gendered contexts (e.g., same-gender or other-gender-peer contexts) over time cue gender-typed behaviors such as using marijuana.     

Development and Evolution of Cognitive Behavior Therapy for Depressed Adolescents

Since the 1980’s cognitive behavior therapy (CBT) has been developed and tested with adolescents experiencing depression. Early studies demonstrated that CBT was more effective than no intervention for young people with depressive symptoms. Beginning in the 1990’s CBT has been proven to be efficacious for adolescents with diagnosed depressive disorders, specifically Major Depressive Disorder (MDD). A series of increasingly challenging and methodologically rigorous trials showed that CBT was an effective intervention for mild to moderate MDD, and enhanced the benefits of anti-depressant medication, even for those adolescents who had already failed to respond to an initial medication. Simultaneously, some limitations of CBT were suggested by these studies. Results of CBT alone were not encouraging with severely depressed adolescents, and the combination of CBT plus medication was not uniformly supported. As CBT investigators worked with more challenging, complex clinical cases, such as depressed adolescents who were abusing substances or engaging in suicidal or self-harm behaviors, standard components of CBT were augmented by increased emphasis placed on emotion regulation, safety planning, and by more intensive outpatient treatment models. Newer developments include “third wave” models, which have shown initial promise.     

Implicit coping and enhancement motives predict unique variance in drinking in Asian Americans

Automatic cognitive processes have been shown to be unique predictors of drinking behavior and can be assessed using implicit measures. Drinking motives (e.g., enhancement and coping motives), which are also predictive of alcohol use, have not been studied using implicit measures. Moreover, in the US, implicit measures have been studied in samples largely consisting of Caucasian or White Americans. This study adapted the Implicit Association Test (IAT) to examine automatic analogues of enhancement and coping drinking motives and approach/avoid tendencies in 56 Asian American undergraduates. Enhancement and coping IATs were correlated with self-reported drinking motives and predicted unique variance in drinking frequency and heavy drinking when controlling for self-reported motives. Approach IAT scores were neither associated with self-reported approach/avoid tendencies nor predictive of drinking behaviors. These findings provide initial support for the unique predictive utility of drinking motives in Asian Americans, an understudied population.     

Gender differences in the assessment, stability, and correlates to bullying roles in middle school children

The current study investigated bullying behaviors in 284 school children in the fourth through seventh grades at the time of the initial assessment. Peer ratings of bullying behavior were obtained at the end of the spring semester of one school year and at the end of the fall semester of the next school year. Importantly, peer ratings were obtained by assessing not only the level at which participants actually bully other students but also whether participants help bullies to hurt the victim (assister), encourage bullies (reinforce), or help the victim of bullying (defender). Our results did not support the utility of differentiating between bullies, assisters, or reinforcers. Specifically, these bullying roles were highly intercorrelated, both concurrently and across school years, and they showed similar correlations with aggression and several characteristics often associated with aggression (i.e., conduct problems, callous-unemotional traits, and positive expectancies about aggression). In contrast, ratings of defending designated a particularly prosocial group of students. Finally, whereas bullying appeared to be very similar in boys and girls, it was somewhat more stable across school years and was related to lower levels of prosocial behavior in boys, both of which could suggest that bullying may be somewhat more related to social group dynamics in girls.     

Personality,life events and the course of anxiety and depression

Using data from the Netherlands Study of Depression and Anxiety, we examined among 1322 participants with a DSM‐IV diagnosis of depression or anxiety: (i) whether positive and negative life events influence 1‐year course of anxiety and depressive symptoms; (ii) whether personality traits (neuroticism and extraversion) predict symptom course and moderate the impact of life events on symptom course; and (iii) whether life events mediate relationships of neuroticism and extraversion with symptom course. Negative life events were predictive of both anxiety and depressive symptoms, while positive life events predicted the course of depressive symptoms only. Personality traits had significant predictive and moderating effects on symptom course, though these effects were rather small. Copyright © 2011 John Wiley & Sons, Ltd.     

Bulimic symptomatology: the role of adaptive perfectionism, shape and weight concern, and self-esteem

An interactive model implicating high perfectionism, high weight and shape concern, and low self-esteem in the onset and maintenance of bulimic symptoms ( [Bardone et?al., 2000] and [Vohs et?al., 1999] ) has received mixed support. This study aimed to replicate the cross-sectional model in a clinical sample of women with eating disorders, and to investigate whether the model could predict changes in binge eating and purging at the end of treatment. Eating disorder outpatients (n = 353) completed measures of perfectionism, weight/shape concern, self-esteem, and bulimic symptoms at pre-treatment and discharge. Contrary to the hypotheses, the three-way interaction did not predict binge eating or purging cross-sectionally or prospectively as a moderator of psychotherapy outcome. It was concluded that the robustness of the interactive model seems questionable and may be impacted by an inadequate conceptualization of the perfectionism construct.