Despite extensive research on the neurobiology of addiction, little is known about how repeated drug use and withdrawal are related to social functioning impairments in humans, a highly social species. This obscures the broader societal impact of drug addiction and limits treatment efficacy. This study examined social cognitive impairment and its multi-brain neural underpinnings during socially interactive problem-solving in heroin use disorder (HUD), and further explored their co-occurrence with protracted withdrawal symptoms.

