Two fundamentally different mechanisms by which unconscious information impairs behavioral performance: Evidence from fMRI and computational modeling.

Autor: Wang Y; School of Psychology, Shaanxi Normal University, Xi'an, 710062, China; Shaanxi Provincial Key Laboratory of Behavior & Cognitive Neuroscience, Xi'an, 710062, China., Di M; Student Mental Health Education Center, Northwestern Polytechnical University, Xi'an, 710129, China., Li Y; School of Psychology, Shaanxi Normal University, Xi'an, 710062, China; Shaanxi Provincial Key Laboratory of Behavior & Cognitive Neuroscience, Xi'an, 710062, China., Liu P; School of Public Management, Northwest University, Xi'an, 710127, China., Zhao J; School of Psychology, Shaanxi Normal University, Xi'an, 710062, China; Shaanxi Provincial Key Laboratory of Behavior & Cognitive Neuroscience, Xi'an, 710062, China., Wang Y; School of Psychology, Shaanxi Normal University, Xi'an, 710062, China; Shaanxi Provincial Key Laboratory of Behavior & Cognitive Neuroscience, Xi'an, 710062, China. Electronic address: wyonghui@snnu.edu.cn.
Jazyk: angličtina
Zdroj: NeuroImage [Neuroimage] 2024 Aug 15; Vol. 297, pp. 120719. Date of Electronic Publication: 2024 Jul 04.
DOI: 10.1016/j.neuroimage.2024.120719
Abstrakt: It is increasingly clear that unconscious information impairs the performance of the corresponding action when the instruction to act is delayed. However, whether this impairment occurs at the response level or at the perceptual level remains controversial. This study used fMRI and a computational model with a pre-post design to address this elusive issue. The fMRI results showed that when the unconscious information containing strong stimulus-response associations was irrelevant to subsequent stimuli, the precuneus in the parietal lobe, which is thought to be involved in sensorimotor processing, was activated. In contrast, when the unconscious information was relevant to subsequent stimuli, regardless of the strength of the stimulus-response associations, some regions in the occipital and temporal cortices, which are thought to be involved in visual perceptual processing, were activated. In addition, the percent signal change in the regions of interest associated with motor inhibition was modulated by compatibility in the irrelevant but not in the relevant stimuli conditions. Modeling of behavioral data further supported that the irrelevant and relevant stimuli conditions involved fundamentally different mechanisms. Our finding reconciles the debate about the mechanism by which unconscious information impairs action performance and has important implications for understanding of unconscious cognition.
Competing Interests: Declaration of competing interest The authors declare no conflict of interest.
(Copyright © 2024. Published by Elsevier Inc.)
Databáze: MEDLINE
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