The influence of feature-based attention and response requirements on ERP correlates of auditory awareness.

IF 3.1 Q1 PSYCHOLOGY, BIOLOGICAL Neuroscience of Consciousness Pub Date : 2024-07-23 eCollection Date: 2024-01-01 DOI:10.1093/nc/niae031
Dmitri Filimonov, Andreas Krabbe, Antti Revonsuo, Mika Koivisto
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Abstract

In search for the neural correlates of consciousness (NCCs), it is important to isolate the true NCCs from their prerequisites, consequences, and co-occurring processes. To date, little is known about how attention affects the event-related potential (ERP) correlates of auditory awareness and there is contradictory evidence on whether one of them, the late positivity (LP), is affected by response requirements. By implementing a GO-NOGO design with target and nontarget stimuli, we controlled for feature-based attention and response requirements in the same experiment, while participants rated their awareness using a perceptual awareness scale. The results showed a prolonged auditory awareness negativity (AAN) for aware trials, which was influenced neither by attention nor by response requirement. The LP was affected by both attention and response requirements. Consistent with the levels of processing hypothesis, the LP was related to consciousness as a correlate of the processing of higher-level stimulus features, likely requiring access to a "global workspace." Our findings further suggest that AAN is a proper ERP correlate of auditory consciousness and thus a true NCC in the auditory modality.

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基于特征的注意力和反应要求对听觉意识的 ERP 相关性的影响。
在寻找意识的神经相关性(NCCs)时,必须将真正的 NCCs 从其先决条件、后果和共存过程中分离出来。迄今为止,人们对注意力如何影响听觉意识的事件相关电位(ERP)相关性知之甚少,而关于其中的晚期阳性(LP)是否会受到反应要求的影响,也存在相互矛盾的证据。通过采用目标刺激和非目标刺激的 GO-NOGO 设计,我们在同一实验中控制了基于特征的注意力和反应要求,而参与者则使用知觉意识量表对其意识进行评分。结果表明,在有知觉的试验中,听觉知觉负性(AAN)会延长,它既不受注意力的影响,也不受反应要求的影响。LP则同时受到注意力和反应要求的影响。与处理水平假说一致的是,LP 与意识相关,是处理更高层次刺激特征的相关因素,可能需要进入 "全局工作空间"。我们的研究结果进一步表明,AAN 是听觉意识的一种恰当的 ERP 关联,因此是听觉模式中真正的 NCC。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Neuroscience of Consciousness
Neuroscience of Consciousness Psychology-Clinical Psychology
CiteScore
6.90
自引率
2.40%
发文量
16
审稿时长
19 weeks
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