Electrophysiological evidence of nonspatial inhibition of return affecting audiovisual integration.

IF 2.6 3区 心理学 Q3 NEUROSCIENCES
Neuropsychology Pub Date : 2024-09-30 DOI:10.1037/neu0000976
Xiaoxue Wang, Xiaoyu Tang, Aijun Wang, Ming Zhang
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引用次数: 0

Abstract

Objective: The present study endeavored to investigate the potential neural underpinnings of disparities in audiovisual integration (AVI) between valid and invalid targets, modulated by nonspatial inhibition of return (IOR). Concurrently, we sought to delineate the distinct roles subserved by Chinese character primes and color block primes throughout this process.

Method: We employed a prime-neutral cue-target paradigm, wherein 25 college students participated in the experiment. Behavioral measures encompassed the reaction time, IOR effect, multisensory response enhancement, and race model analysis. Besides, we examined the N200, N400, and P300 components elicited by the target stimulus presentation in a time-locked fashion to investigate the neural underpinnings of AVI disparities in the context of valid and invalid targets.

Results: Behavioral analyses unveiled a significant attenuation of AVI for valid targets, with this effect being particularly pronounced in trials involving Chinese character primes. Intriguingly, event-related potential (ERP) data evinced AVI within the N400 and P300 components. Moreover, the novelty of this study resides in identifying the P300 component as the principal neural correlate underpinning the attenuation of AVI arising from nonspatial IOR-a finding that was not replicated when employing color block primes.

Conclusions: This research furnishes novel ERP evidence that elucidates the mechanisms through which nonspatial IOR modulates AVI. This contributes significantly to a broader understanding of the cognitive processes underpinning multisensory perception and attentional dynamics. These insights not only corroborate the late attention theory and the coactivation model but also lend credence to the context-updating hypothesis. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

影响视听整合的非空间抑制返回的电生理学证据。
研究目的本研究旨在探究有效目标和无效目标之间视听整合(AVI)差异的潜在神经基础,这种差异受非空间返回抑制(IOR)的调节。同时,我们还试图确定汉字素材和色块素材在整个过程中的不同作用:我们采用了素色中性线索-目标范式,共有 25 名大学生参加了实验。行为测量包括反应时间、IOR效应、多感官反应增强和种族模型分析。此外,我们还以时间锁定的方式检测了目标刺激呈现所引发的 N200、N400 和 P300 分量,以研究在有效和无效目标背景下 AVI 差异的神经基础:行为分析揭示了有效目标的 AVI 显著减弱,这种效应在涉及汉字预示的试验中尤为明显。耐人寻味的是,事件相关电位(ERP)数据在 N400 和 P300 成分中显示了反向视差。此外,本研究的新颖之处在于确定了 P300 分量是支撑非空间 IOR 引起的 AVI 衰减的主要神经相关因素--这一发现在使用色块primes 时没有得到复制:这项研究提供了新的ERP证据,阐明了非空间IOR调节AVI的机制。这对更广泛地理解多感官知觉和注意动态的认知过程大有裨益。这些见解不仅证实了晚期注意理论和共激活模型,还为情境更新假说提供了可信度。(PsycInfo Database Record (c) 2024 APA, 版权所有)。
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
Neuropsychology
Neuropsychology 医学-神经科学
CiteScore
4.10
自引率
4.20%
发文量
132
审稿时长
6-12 weeks
期刊介绍: Neuropsychology publishes original, empirical research; systematic reviews and meta-analyses; and theoretical articles on the relation between brain and human cognitive, emotional, and behavioral function.
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