The relationship between personality and bullying among primary school children: the mediation role of trait emotion intelligence and empathy

Background/Objectives: Several studies have shown that personality traits are a benchmark in research field of bullying prevention, while others have highlighted that the socio-emotional skills are important to prevent a wide range of maladjusted behaviors, suggesting that the investment in their developing may mediate the effects of personality dispositions. The present study aims to clarify if socio-emotional attitudes can mediate the relationships between personality traits and bullying. Methods: Five sequential mediation models are tested using the Big Five personality traits as focal predictors, bullying as the outcome, and trait emotional intelligence and empathy as causally chained mediators, involving 199 primary school children (8-10 years) through the Bullying Prevalence Questionnaire, the Big Five Questionnaire for children, the Emotional Intelligence Index and the Empathy-Teen Conflict Survey. Results: Data showed that openness, conscientiousness, and agreeableness were inversely related to bullying, and that the causal chain of TEI-empathy negatively and completely mediated the relationship between emotional instability and bullying and negatively and partially mediated the relationship between openness and bullying. Conclusions: These results suggest that TEI and empathy mediate the relationship between personality traits and bullying, reducing the risk of being involved in bullying perpetration. (AU)

The relationship between personality and bullying among primary school children: the mediation role of trait emotion intelligence and empathy.

Background/Objectives: Several studies have shown that personality traits are a benchmark in research field of bullying prevention, while others have highlighted that the socio-emotional skills are important to prevent a wide range of maladjusted behaviors, suggesting that the investment in their developing may mediate the effects of personality dispositions. The present study aims to clarify if socio-emotional attitudes can mediate the relationships between personality traits and bullying. Methods: Five sequential mediation models are tested using the Big Five personality traits as focal predictors, bullying as the outcome, and trait emotional intelligence and empathy as causally chained mediators, involving 199 primary school children (8-10 years) through the Bullying Prevalence Questionnaire, the Big Five Questionnaire for children, the Emotional Intelligence Index and the Empathy-Teen Conflict Survey. Results: Data showed that openness, conscientiousness, and agreeableness were inversely related to bullying, and that the causal chain of TEI-empathy negatively and completely mediated the relationship between emotional instability and bullying and negatively and partially mediated the relationship between openness and bullying. Conclusions: These results suggest that TEI and empathy mediate the relationship between personality traits and bullying, reducing the risk of being involved in bullying perpetration.

Phenotypic modifications of vascular smooth muscle cells could be responsible for vascular hyporeactivity to contracting agent in mechanically injured rat carotid artery.

Vascular smooth muscle cells (VSMCs) that accumulate in neointima after angioplastic injury show different phenotypic characteristics from those of medial layer and an impaired reactivity to contracting agents. The aim of the study was to correlate the vascular hyporesponsiveness to the changes in intracellular calcium concentration [Ca(2+)](i) and the expression of proteins necessary for its utilization in mechanically injured rat carotid arteries (IC) at 14 and 28 days after angioplastic balloon. IC showed a significant reduction (P<0.01) to PE- or KCl-induced contraction as compared to uninjured carotid (UC). Fura-2AM-loaded VSMCs isolated from IC revealed that this hyporeactivity to PE or KCl was accompanied by the impairment of the increase in [Ca(2+)](i) induced by contracting agents in both Ca(2+)-free or -containing medium. Similar results were observed following the ryanodine challenge in VSMC. Western blot analysis showed a significant (P<0.05) reduction in myosin heavy chain (MHC) and IP(3)-type III receptor expression in IC isolated at 14 days from injury compared to UC, while an improvement of these proteins expression was observed at 28 days after damage. On the other hand, in IC tissue, SERCA2 and alpha-actin expression, compared to UC was significantly higher at 14 days than at 28 days. These data indicate that vascular hyporeactivity induced by mechanical injury may be due to alterations of either [Ca(2+)](i) or contractile proteins. These modifications could be related to the changes of VSMC phenotypic characteristics, as supported by the observed modifications in MHC, SERCA2 and alpha-actin expression, proteins considered as biological markers of cellular differentiation.