Loss Aversion and Evidence Accumulation in Short-Video Addiction: A Behavioral and Neuroimaging Investigation DOI Creative Commons
Chang Liu,

Jinlian Wang,

Hanbing Li

et al.

NeuroImage, Journal Year: 2025, Volume and Issue: 313, P. 121250 - 121250

Published: May 3, 2025

Excessive use of short-video platforms not only impairs decision-making processes but also predisposes individuals to addictive behaviors. This study investigated the relationship between addiction (SVA) symptoms and loss aversion (LA), delving into underlying computational neural mechanisms using drift diffusion model (DDM) inter-subject representational similarity analysis (IS-RSA). Behavioral analyses revealed a significant negative correlation SVA LA coefficient (lnλ). Additionally, DDM-based rate (v) was found mediate this relationship. Neuroimaging further indicated that were negatively associated with gain-related activity in right precuneus, while positively correlating loss-related cerebellum left postcentral gyrus. Notably, precuneus activation during gain processing mediated both lnλ rate. IS-RSA variations significantly distinct patterns related frontoparietal network (e.g., frontal pole, inferior gyrus, supramarginal gyrus) motor precentral), as well networks pre-supplementary area). Similar emerged when examining simultaneous patterns. Mediation demonstrated functional relationships loss-aversion psychological decision threshold, rate, non-decision time). These findings provide novel insights cognitive influence on aversion, suggest critical roles evidence accumulation speed specific brain patterns-particularly within control network-in shaping biases addiction.

Language: Английский

Loss Aversion and Evidence Accumulation in Short-Video Addiction: A Behavioral and Neuroimaging Investigation DOI Creative Commons
Chang Liu,

Jinlian Wang,

Hanbing Li

et al.

NeuroImage, Journal Year: 2025, Volume and Issue: 313, P. 121250 - 121250

Published: May 3, 2025

Excessive use of short-video platforms not only impairs decision-making processes but also predisposes individuals to addictive behaviors. This study investigated the relationship between addiction (SVA) symptoms and loss aversion (LA), delving into underlying computational neural mechanisms using drift diffusion model (DDM) inter-subject representational similarity analysis (IS-RSA). Behavioral analyses revealed a significant negative correlation SVA LA coefficient (lnλ). Additionally, DDM-based rate (v) was found mediate this relationship. Neuroimaging further indicated that were negatively associated with gain-related activity in right precuneus, while positively correlating loss-related cerebellum left postcentral gyrus. Notably, precuneus activation during gain processing mediated both lnλ rate. IS-RSA variations significantly distinct patterns related frontoparietal network (e.g., frontal pole, inferior gyrus, supramarginal gyrus) motor precentral), as well networks pre-supplementary area). Similar emerged when examining simultaneous patterns. Mediation demonstrated functional relationships loss-aversion psychological decision threshold, rate, non-decision time). These findings provide novel insights cognitive influence on aversion, suggest critical roles evidence accumulation speed specific brain patterns-particularly within control network-in shaping biases addiction.

Language: Английский

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