یادگیری مقدار موثر دسته هدف: نقش دسته ظرفیت و سیستم بازداری رفتاری (BIS)

In the present study, we tested the role of anxiety in categorization behaviour, operationalized within Gray’s theory of the behaviour inhibition system (BIS), and predicted intensification of the usual asymmetry in high BIS participants. Using the rule-discovery paradigm we manipulated the affective meaning of categories (gains vs. losses) and type of feedback for categorization decisions (full vs. incomplete feedback). Results confirmed positive–negative asymmetry in categorization. However, contrary to expectations, the high BIS persons placed in the incomplete feedback gain conditions were not more but less risk averse than were low BIS persons.