Revised reinforcement sensitivity theory and vigilance eye-movement of BIS in conflicting situation

Abstract

Revised reinforcement sensitivity theory (rRST) postulates individuals with behavioral inhibition system (BIS) would show improved behavioral responses and approach tendency with vigilance toward punishment in an approach-avoidance conflict situation. The aim of current study was to examine rRST by observing vigilant eye-movements and efficient behavioral response of BIS in conflicting situation. Twenty participants with high BIS and twenty participants with low BIS performed approach-avoidance conflict task. Eye-movements were observed using an eye tracking device which indicates resource allocation to resolve the conflicting situation. High BIS showed significantly more vigilant eye-movements and better task performance compared to low BIS. The result supports the rRST and the attentional process indicates converting approach motivation into an actual action. Individuals with BIS may be able to approach and resolve threatening stimuli rather than to avoid punishment if it is offered with reward.