无关言语对生理压力,认知表现和主观经验的影响 - - 专注于心率变化
Jenni Radun1, Henna Maula1, Iida-Kaisa Tervahartiala1
1Psychophysics Laboratory, Turku University of Applied Sciences, Turku, Finland.
概括
不相关的语言会对认知任务产生负面影响,并导致生理压力. 心率变化 (HRV) 有效地测量了这种压力,证实了它在研究环境中的实用性.
科学领域:
- 认知心理学 认知心理学
- 心理生理学 心理生理学
- 人与计算机的交互
背景情况:
- 众所周知,不相关的语言会损害认知功能,特别是口头短期记忆.
- 在不相关的演讲过程中认知负载可以引起生理应激反应.
- 心率变化 (HRV) 为评估压力提供了一种非侵入性方法.
研究的目的:
- 为了评估心率变化 (HRV) 作为压力指标在无关的语言范式内.
- 调查无关言语对认知表现,主观经验和生理压力标志物的影响.
主要方法:
- 30名参与者在两个听觉条件下完成了认知任务 (n-back,串行回忆):无关语言 (50dB) 和安静 (33dB).
- 记录了表现的准确性,反应时间,主观评分 (烦,工作量,声学满意度) 和生理数据 (心率,HRV).
- 还分析了条件顺序的影响.
主要成果:
- 不相关的语言显著降低了连续回忆任务的准确性,增加了烦和感知工作负载.
- 在不相关的演讲过程中,生理压力增加,通过更快的心率和改变HRV频率域测量 (LF,HF,LF/HF) 表示.
- 条件顺序影响了表现和生理反应,这表明延续效应.
结论:
- 无关紧要的言论显然会损害认知表现,主观体验和生理压力水平.
- 在涉及无关言语的研究中,HRV作为生理压力的有效和实用的测量方法.
- 研究结果强调了听觉分心在认知任务环境中的有害影响.
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