在听觉负载下早期工作记忆的变化:年轻成年人语音噪音感知的一个预测因素
M Suriya Pirranavi1, Prajwal Kumar Eranna1, Jayashree S Bhat1
1Nitte Institute of Speech and Hearing (NISH), Nitte (Deemed to be University), India.
Perception
|December 16, 2025
概括
在年轻人中,工作记忆 (WM) 的下降,特别是在杂的环境中,比预期的要早. 在具有挑战性的听觉环境中进行的评估揭示了影响语音感知的早期认知变化.
科学领域:
- 听觉神经科学 听觉神经科学
- 认知心理学 认知心理学
- 人类衰老研究研究
背景情况:
- 由于听觉认知相互作用,在噪音中理解语音是很困难的.
- 工作记忆 (WM) 对于处理听觉信息和语音感知至关重要.
- 年轻人早期认知能力下降的迹象往往被传统的安静评估所忽略.
研究的目的:
- 研究20-40岁成年人工作记忆 (WM) 能力的早期变化.
- 评估背景噪声对该年龄组的WM表现的影响.
- 探索噪音中的语音感知与WM能力之间的关系.
主要方法:
- 80名听力正常的参与者按年龄分组 (5年间隔,20-40岁).
- 参与者完成了前进数字跨度,后退数字跨度和操作跨度任务.
- 在噪音中测量语音感知,使用SNR-50.
主要成果:
- 观察到与年龄相关的WM表现的逐渐下降.
- 在35-40岁的年龄组中,后退和操作跨度任务的WM显著下降,特别是在背景噪音方面.
- 在安静和噪音条件下,SNR-50和WM性能之间的负相关性是显著的.
结论:
- 工作记忆的衰退可能比以前想象的要早,特别是在具有挑战性的听觉环境中.
- 在生态有效,杂的条件下评估听觉认知对于检测早期衰退很重要.
- 噪音增加了认知负载,损害了性能,并支持认知负载理论.
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