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在噪音中的语音理解神经处理使用基于fNIRS的大脑行为模型预测个体年龄

Yi Liu¹, Songjian Wang¹, Jing Lu²

¹Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, No. 17, Hougou Hutong, Dongcheng District, Beijing 100005, China.

Cerebral cortex (New York, N.Y. : 1991)

|May 8, 2024

概括

在噪音中的语音感知期间的大脑活动可以预测一个人的年龄,即使听力正常. 特定大脑区域的神经反应对衰老比行为措施更敏感.

科学领域:

神经科学是一个神经科学.
听觉感知是一种听觉感知.
衰老的衰老衰老的衰老

背景情况:

听力正常的老年人经常在杂的环境中难以理解语言.
与年龄相关的语音感知变化的神经相关性尚未完全理解.
调查大脑活动可能会揭示与年龄相关的差异,这些差异在行为测试中并不明显.

研究的目的:

为了确定在语音感知过程中的个体大脑激活模式是否可以预测时间年龄.
为了比较神经反应的预测能力与衰老中的行为表现.
确定特定的大脑区域参与与年龄相关的听觉处理变化.

主要方法:

功能近红外光谱学 (fNIRS) 用于测量20-70岁的93名成年人的大脑活动.
参与者在安静和四个噪音条件下 (SNR为10,5,0,-5dB) 执行了一个句子听力任务.
应用了一个数据驱动的,基于区域的大脑年龄预测模型.

主要成果:

随着年龄的增长,行为语言理解在杂的环境中显著下降,但在安静的环境中却没有下降.
在中度噪音条件下 (SNR=10 dB) 的大脑激活模式准确预测了个体年龄.
关键的预测区域包括感觉运动区域,语音通路和状状区域.

结论:

在噪音中的语音感知过程中神经激活模式是衰老的敏感指标.
大脑活动,特别是感官运动映射区域,比行为表现更准确地衡量年龄.
这些发现突出了神经成像技术在理解听觉处理中的与年龄相关的认知变化方面的潜力.

关键词:

功能近红外光谱学近红外光谱学听力困难听力困难这是正常的衰老过程.预测建模预测建模语音感知语音感知

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