An examination of the relationship between behavioral approach system (BAS) sensitivity and social interaction anxiety

Abstract

Background Both behavioral inhibition system (BIS) and behavioral approach system (BAS) sensitivity have been proposed to play a role in social anxiety; however, findings concerning the relationship between BAS and social anxiety have been mixed. Moreover, recent evidence suggests that low levels of BAS may only be associated with the social interaction subdimension of social anxiety. Method Measures of BIS, BAS, social interaction anxiety, and social observation anxiety were administered to three large analogue samples. Results As hypothesized, BAS was inversely related to social interaction anxiety, but was unrelated to social observation anxiety across all three samples. In addition, individuals with generalized social fears were found to report both higher levels of BIS and lower levels of BAS compared to individuals with few or specific social fears. Conclusion These findings suggest that a complete motivational account of generalized social anxiety should include both BIS and BAS.