Biological psychiatry · 2026
Social Cognitive Deficits and Altered Multibrain Dynamics During Problem Solving in Heroin Abstainers: A Functional Near-Infrared Spectroscopy Hyperscanning Study.
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Wang Yifan, Li Wanyi, Fu Wenjuan, Zhang Jin, Dang Jiaqi, Li Yadan, Ball Linden J, Duan Haijun
Аннотация
BACKGROUND: 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 multibrain neural underpinnings during socially interactive problem solving in heroin use disorder (HUD) and further explored their co-occurrence with protracted withdrawal symptoms.
METHODS: Thirty-eight HUD pairs and 30 healthy control (HC) pairs completed a turn-based group problem-solving task. Functional near-infrared spectroscopy was employed during the whole task to simultaneously measure neural activity within individual brains and between interacting partners.
RESULTS: Compared with HC pairs, HUD pairs exhibited poorer individual and group problem-solving performance, as well as reduced perspective-taking behavior. Altered intrabrain neural signatures were observed, characterized by reduced activation in the right inferior frontal gyrus (rIFG) and left orbitofrontal cortex (lOFC), along with decreased functional connectivity strength in the right dorsolateral prefrontal cortex. Additionally, the rIFG-centered interpersonal neural synchronization (INS) was disrupted. Aberrant intrabrain signatures in lOFC and the consequent difficulties in establishing INS contribute to poorer group performance. These behavioral and neural deficits exhibited comorbidity with emotional and sleep-related withdrawal symptoms.
CONCLUSIONS: This study advances our understanding of social cognitive deficits in drug addiction and provides novel insights into their interpersonal basis. The findings have a translational impact on developing targeted treatment to restore social functioning for drug addiction and other psychiatric disorders.
METHODS: Thirty-eight HUD pairs and 30 healthy control (HC) pairs completed a turn-based group problem-solving task. Functional near-infrared spectroscopy was employed during the whole task to simultaneously measure neural activity within individual brains and between interacting partners.
RESULTS: Compared with HC pairs, HUD pairs exhibited poorer individual and group problem-solving performance, as well as reduced perspective-taking behavior. Altered intrabrain neural signatures were observed, characterized by reduced activation in the right inferior frontal gyrus (rIFG) and left orbitofrontal cortex (lOFC), along with decreased functional connectivity strength in the right dorsolateral prefrontal cortex. Additionally, the rIFG-centered interpersonal neural synchronization (INS) was disrupted. Aberrant intrabrain signatures in lOFC and the consequent difficulties in establishing INS contribute to poorer group performance. These behavioral and neural deficits exhibited comorbidity with emotional and sleep-related withdrawal symptoms.
CONCLUSIONS: This study advances our understanding of social cognitive deficits in drug addiction and provides novel insights into their interpersonal basis. The findings have a translational impact on developing targeted treatment to restore social functioning for drug addiction and other psychiatric disorders.