感知失调的声音:反应时间,准确性和神经处理
Baiba Trinite1, Anita Zdanovica1
1Speech and Voice Research Laboratory, Riga Technical University Liepaja Academy, Liepaja, Latvia.
Journal of voice : official journal of the Voice Foundation
|November 12, 2025
概括
严重的语音障碍显著影响任务性能和认知处理,导致更快但更不准确的反应. 轻度语音问题主要影响响应速度,而不是准确性或认知负载.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音科学 语言科学
- 认知心理学 认知心理学
背景情况:
- 语音对于高风险职业的沟通至关重要,如紧急调度,航空,医疗保健和军队.
- 语音障碍可以对用户和听众的语音感知,倾听力度和任务执行产生负面影响.
- 了解语音障碍对认知处理和行为的影响对于这些关键领域至关重要.
研究的目的:
- 研究失调的声音如何影响行为表现 (反应时间,准确性) 和神经处理 (事件相关潜能,ERP) 响应简短的口语指令.
- 为了区分严重与轻度听力障碍对认知和行为结果的影响.
主要方法:
- 43名健康的大学生通过正常,轻度失声和严重失声的声音听取空间指令 (左,右,上,下).
- 参与者通过移动操纵杆做出反应,而他们的大脑活动则使用64通道移动EEG系统进行记录.
- 失调的语音刺激来自于患有严重的添加器性失声症和慢性喉炎引起的轻度失声症的个体.
主要成果:
- 与正常声音相比,听众对失声声音的反应明显更快,特别是在严重的失声时 (P < 0.001).
- 任务准确性仅在严重的听力障碍中显著下降;轻度的听力障碍没有影响准确性.
- 与事件相关的潜力 (ERP) 分析显示,严重失声的声音的幅度增加 (N200,P300,晚期潜力),表明认知负载更大.
结论:
- 严重的性听障严重扰乱认知处理和行为,导致更快但不那么准确的任务完成和增加认知力度.
- 轻度听力障碍主要影响响应速度,而不会影响准确性或增加认知负载.
- 这些发现强调了语音质量在有效沟通中的关键作用,特别是在苛刻的专业环境中.
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