Signal-to-Noise Ratio Effects Frontoparietal Network Lateralization: Electroencephalogram Evidence in Underwater Auditory Target Recognition

IF 4.8 3区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Annals of the New York Academy of Sciences Pub Date : 2025-10-03 DOI:10.1111/nyas.70081

Mingkun Guo, Jie Zhang, Hongxing Liu, Yanru Bai, Guangjian Ni

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Abstract

Accurately recognizing auditory targets within background interference remains challenging at a low signal-to-noise ratio (SNR). Using an oddball paradigm, this electroencephalogram study investigated the impact of SNR (0, −10, and −20 dB) on psychophysiological processes underlying underwater auditory target recognition in twenty normal-hearing participants. Reduced SNR impaired the N1–P2 component and led to P300 variations, with delayed latencies (N1: p = 0.0355; P300: p = 0.0075) and reduced amplitudes (P2: p = 0.0075; P300: p = 0.0277), indicating increased attentional demands. Microstate analysis highlighted 300–400 ms frontoparietal activation for attention orientation and sensory information integration. Reduced accuracy correlates with alpha-band activity and phase variations over frontoparietal areas (event-related spectral perturbation [ERSP]: p = 0.0388; inter-trial coherence [ITC]: p = 0.0059), implying suppression of task-relevant processing. Gamma-band activity and phase at lower SNR levels suggest changes in the parietal network's function (ERSP: p = 0.0183; ITC: p = 0.0113), influencing reaction times due to increased integration difficulty. Right-lateralized alpha- and gamma-band network shifts support the functional advantages of the right hemisphere in noise, with enhanced local efficiency (frontal alpha: p = 0.0100; parietal—occipital gamma: p = 0.0116). These findings provide insights into the psychophysiological mechanisms underlying auditory target recognition in noise.

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信噪比对额顶叶网络侧化的影响：水下听觉目标识别的脑电图证据

在低信噪比的背景干扰下，准确识别听觉目标仍然是一个挑战。本脑电图研究采用奇异范式，研究了信噪比（0、- 10和- 20 dB）对20名听力正常参与者水下听觉目标识别心理生理过程的影响。信噪比降低损害了N1 - P2成分，导致P300发生变化，潜伏期延迟（N1: p = 0.0355; P300: p = 0.0075），振幅降低（P2: p = 0.0075; P300: p = 0.0277），表明注意需求增加。微观状态分析强调300-400 ms额顶叶的注意定向和感觉信息整合激活。准确度降低与额顶区α波段活动和相位变化相关（事件相关谱扰动[ERSP]: p = 0.0388；试验间相干性[ITC]: p = 0.0059），这意味着任务相关加工受到抑制。较低信噪比水平下的伽马波段活度和相位表明顶叶网络功能发生了变化（ERSP: p = 0.0183; ITC: p = 0.0113），由于整合难度增加而影响反应时间。右侧的α和γ波段网络移位支持右半球在噪声中的功能优势，具有增强的局部效率（额叶α: p = 0.0100；顶叶-枕叶γ: p = 0.0116）。这些发现为噪声中听觉目标识别的心理生理机制提供了深入的见解。

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来源期刊

Annals of the New York Academy of Sciences 综合性期刊-综合性期刊

CiteScore

11.00

自引率

1.90%

发文量

193

审稿时长

2-4 weeks

期刊介绍： Published on behalf of the New York Academy of Sciences, Annals of the New York Academy of Sciences provides multidisciplinary perspectives on research of current scientific interest with far-reaching implications for the wider scientific community and society at large. Each special issue assembles the best thinking of key contributors to a field of investigation at a time when emerging developments offer the promise of new insight. Individually themed, Annals special issues stimulate new ways to think about science by providing a neutral forum for discourse—within and across many institutions and fields.