(1 School of Psychology, South China Normal University, Guangzhou 510631, China) (2 School of Education, Chongqing Normal University, Chongqing 401331, China) (3 Mental Health Center / Department of Child Psychiatry, Shenzhen Kangning Hospital, Shenzhen 518020, China)
Abstract： The dual system model of behavior learning recognizes two distinct systems: goal-directed system and habitual system. The goal-directed system, encoding the action-outcome behavior, is associated with caudate, ventromedial prefrontal cortex (vmPFC) and orbitofrontal cortex (OFC). The habitual system, concerning stimulus-response behaviors, is associated with the putamen and supplementary motor area (SMA). Research paradigms for these two behavioral learning systems mainly include outcome devaluation and contingency degradation paradigms. A large number of studies have found a dynamic defect of goal-direct learning system and habitual learning system in obsessive-compulsive disorder, autism, addiction and other mental disorders.