Résumé
Biological personality Gary, as a psychological- neural theory, refers to brain systems of behaviors explaining psychological and social factors. Aim of the present study was to investigate relationship between behavioral inhibition and activation systems with adjustment of students. Among high school students of Tehran province in years of 2011-2012, 332 individuals [166 males, 166 females] were selected using multi-stage cluster sampling. White scale brain systems and behavior [Carver and White, 1994] and scale adjustment of students [Sinha and Syg, 1993] were used. Data were analyzed by Pearson correlation and stepwise regression analyzes and t test. There was significant correlation between behavioral activation system and white adjustment emotional, academic and inhibition system whit social adjustment deterrent system. There was no significant sex difference between brain behavior system and adjustment. It seems that important components of biological models of personality can be effective in explaining many psychological and social behaviors