Neurophysiological characteristics of reward processing in individuals at different levels of gaming

被引：0
作者：
Peng, Yanjie [1 ,2 ]
Wu, DanTong [1 ,2 ]
Tian, Mingyuan [1 ]
Zhou, Yanyin [1 ,2 ]
Peng, Xiaohong [1 ,2 ]
Peng, Zhenlei [3 ]
Gong, Ke [1 ,2 ]
Liu, Kezhi [1 ]
Chen, Jing [1 ,2 ,4 ]
Lei, Wei [1 ,2 ,4 ]
机构：
[1] Southwest Med Univ, Affiliated Hosp, Dept Psychiat, 25 Taiping St, Luzhou 646000, Peoples R China
[2] Southwest Med Univ, Sch Clin Med, 319,Sect 3,Zhongshan Rd, Luzhou 646000, Peoples R China
[3] Xinjiang Med Univ, Affiliated Hosp 1, Xinjiang Clin Res Ctr Mental Psychol Disorders, Psychol Med Ctr, 137 Liyushan South Rd, Urumqi 830054, Xinjiang, Peoples R China
[4] Affiliated Hosp Southwest Med Univ, Lab Neurol Dis & Brain Funct, Affiliated Hosp, 25 Taiping St, Luzhou 646000, Peoples R China
来源：
CEREBRAL CORTEX | 2024年 / 34卷 / 11期
基金：
美国国家科学基金会;
关键词：
event-related potentials; internet gaming disorder; monetary incentive delay task; reward anticipation; reward consummation; INCENTIVE-SENSITIZATION THEORY; DECISION-MAKING; NEURAL RESPONSE; RISK-TAKING; INTERNET; DISORDER; FMRI; ANTICIPATION; IMPULSIVITY; ADDICTION;
D O I：
10.1093/cercor/bhae436
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
Altered reward processing has been repeatedly reported in Internet gaming disorder (IGD). However, it remains unclear whether these changes are linked to the severity of addictive symptoms or the extent of gaming experience. This study examined the neurophysiological responses regarding reward anticipation and consummation in individuals at different levels of gaming (including 22 casual gamers, 31 regular gamers, and 27 individuals with IGD) through a monetary incentive delay task. Three event-related potential components during reward anticipation-cue-related P300 (Cue-P3), contingent negative variation, and stimulus-preceding negativity (SPN)-and two during reward consummation-feedback-related negativity and feedback-related P300 (FB-P3)-were measured. We found that IGD individuals exhibited greater Cue-P3 but lower SPN amplitude compared to casual gamers, while regular gamers fell between the two without significant differences. Regressions indicated that more extensive gaming experience, rather than the severity of the symptoms, primarily contributed to the increased Cue-P3 in IGD. No group differences were found during reward consummation. Our results highlight disrupted reward anticipation processing in IGD, characterized by increased attention bias toward reward cues (Cue-P3) but diminished cognitive resources for reward anticipation (SPN) and emphasize the role of gaming experience in increased attention bias in IGD.
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页数：13
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