吸烟提示对工作记忆的影响:来自漂移-扩散模型和脑电图的证据

IF 3.6 2区 医学 Q1 PSYCHOLOGY, CLINICAL
Jiayue Zou , Yawei Qi , Shaoyu Tu , Yifei Zhang , Haichao Zhao , Jiali Liu , Ofir Turel , Hanlin Cheng , Qinghua He
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引用次数: 0

摘要

反复接触尼古丁会导致认知变化,包括工作记忆。然而,我们对这些变化的理解有限。为了解决这一差距,48名吸烟者在不同的工作记忆负荷(1-back和2-back)下参与了涉及吸烟和中性线索的吸烟特异性N-back任务,同时记录了脑电图数据。通过漂移-扩散模型和脑电图分析,研究提示类型和工作记忆负荷如何调节行为表现,并确定潜在的认知过程和神经关联。结果显示,在工作记忆负荷低的情况下,当暴露于吸烟线索时,准确性下降,反应时间变慢。漂移-扩散模型分析表明,这些影响可能源于降低的漂移率和较低的决策阈值。这些提示类型之间的行为差异反映在神经活动中,吸烟提示在两种工作记忆负荷下都能引起较小的P300振幅,α和β功率下降,而在低工作记忆负荷下则主要增加正慢波。此外,尼古丁渴望与行为表现(即准确性)、漂移-扩散模型参数(即漂移率和决策阈值)和脑电图数据(即α和β功率)呈负相关。这些发现增强了我们对吸烟线索如何影响吸烟者的认知过程和工作记忆的神经机制的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Impact of Smoking Cues on Working Memory: Evidence from the Drift-Diffusion Model and EEG
Repeated nicotine exposure can lead to cognitive changes, including working memory. However, we have a limited understanding of such changes. To address this gap, 48 smokers participated in smoking-specific N-back tasks involving smoking and neutral cues under different working memory loads (1-back and 2-back), while EEG data were recorded. By employing drift–diffusion model and EEG analysis, we examined how cue types and working memory loads modulate behavioral performance and identified the underlying cognitive processes and neural correlates. The results showed decreased accuracy across working memory loads and slower reaction times specifically in the low working memory load condition when exposed to smoking cues. Drift-diffusion model analysis suggested that these effects may stem from reduced drift rate and a lower decision threshold. These behavioral differences between cue types were mirrored in the neural activity, with smoking cues eliciting smaller P300 amplitudes, decreased alpha and beta power under both working memory loads, and increased positive slow wave predominantly at low working memory load. Furthermore, negative correlations were observed between nicotine craving and behavior performance (i.e., accuracy), drift–diffusion model parameters (i.e., drift rate and decision threshold) and EEG data (i.e., alpha and beta power). These findings enhance our understanding of how smoking cues affect cognitive processing and the neural mechanisms of working memory in smokers.
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来源期刊
Addictive behaviors
Addictive behaviors 医学-药物滥用
CiteScore
8.40
自引率
4.50%
发文量
283
审稿时长
46 days
期刊介绍: Addictive Behaviors is an international peer-reviewed journal publishing high quality human research on addictive behaviors and disorders since 1975. The journal accepts submissions of full-length papers and short communications on substance-related addictions such as the abuse of alcohol, drugs and nicotine, and behavioral addictions involving gambling and technology. We primarily publish behavioral and psychosocial research but our articles span the fields of psychology, sociology, psychiatry, epidemiology, social policy, medicine, pharmacology and neuroscience. While theoretical orientations are diverse, the emphasis of the journal is primarily empirical. That is, sound experimental design combined with valid, reliable assessment and evaluation procedures are a requisite for acceptance. However, innovative and empirically oriented case studies that might encourage new lines of inquiry are accepted as well. Studies that clearly contribute to current knowledge of etiology, prevention, social policy or treatment are given priority. Scholarly commentaries on topical issues, systematic reviews, and mini reviews are encouraged. We especially welcome multimedia papers that incorporate video or audio components to better display methodology or findings. Studies can also be submitted to Addictive Behaviors? companion title, the open access journal Addictive Behaviors Reports, which has a particular interest in ''non-traditional'', innovative and empirically-oriented research such as negative/null data papers, replication studies, case reports on novel treatments, and cross-cultural research.
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