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吸烟线索对工作记忆的影响:漂移扩散模型和EEG的证据

Jiayue Zou¹, Yawei Qi¹, Shaoyu Tu¹

¹Faculty of Psychology, MOE Key Laboratory of Cognition and Personality, Southwest University, Chongqing 400715, China.

Addictive behaviors

|July 12, 2025

概括

吸烟暗示会损害吸烟者的工作记忆性能,减少准确性和减缓反应时间. 这种认知效应与神经变化和尼古丁渴望有关,影响决策过程.

科学领域:

神经科学是一个神经科学.
认知心理学认知心理学
成研究研究成研究

背景情况:

众所周知,反复暴露于尼古丁会改变认知功能,特别是工作记忆.
了解吸烟线索对吸烟者的认知过程的确切影响仍然有限.

研究的目的:

研究吸烟线索和工作记忆负载如何影响吸烟者的认知表现和神经活动.
为了确定底层的认知机制和通过吸烟线索调节的神经相关物.

主要方法:

48名吸烟者完成了N-back任务,在不同工作记忆负载下 (1-back, 2-back) 完成了吸烟和中性线索,同时进行电脑电图 (EEG) 记录.
使用漂移扩散模型 (DDM) 和EEG信号分析了行为数据.

主要成果:

吸烟线索导致精度降低和反应时间减慢,特别是在较低的工作内存负载时.
在吸烟提示条件下,DDM分析表明漂移率和决策值降低.
脑电图显示P300振幅下降,α/β功率降低,吸烟线索缓慢波活动增加,与尼古丁渴望负相关.

结论:

吸烟暗示显著损害认知表现,并改变与吸烟者的工作记忆相关的神经处理.
这些影响与决策参数的变化有关,并由尼古丁渴望调节.
这些发现提供了关于吸烟相关刺激的吸烟者工作记忆缺陷背后的神经机制的见解.

关键词:

漂流扩散模型这是一个EEGEEGEEGEEGEEGEEGEEG.一个吸烟的标志.工作记忆工作记忆

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