عنوان مقاله [English]
Personality can be defined as relatively fixed models of explicit behavioral responses in regular life. Three clusters of personality disorder have been introduced based on common and explicit features. The features of type-B cluster disorders are regarded as dramatic, emotional or irregular behaviors. The research purpose is to predict cluster-B personality models based on sensation-seeking and brain-behavioral systems. Therefore, in a descriptive-correlational study, a sample of 350 university students was selected through convenience sampling and tested by personality disorders, sensation seeking and behavioral activation. Results of multivariate regression analysis indicated that, sensation-seeking was a significant and positive predictor of narcissistic personality. Results also indicated that behavioral activation system can predict all the personality models of cluster-B. Moreover, it seems that sensation-seeking and brain-behavioral systems are correlated to personality models and can predict the personality models of cluster B.