无意识地对声音进行定位可以改善视觉感知.
J J McDonald1, W A Teder-Sälejärvi, S A Hillyard
1Department of Neurosciences, School of Medicine, University of California, San Diego, La Jolla 92093-0608, USA. jmcd@sfu.ca
Nature
|November 1, 2000
概括
一个突然的声音可以不自觉地吸引注意力,提高在同一位置的视觉刺激的检测能力. 这表明听觉注意力改善了早期的视觉感知,而不仅仅是反应.
科学领域:
- 认知神经科学 认知神经科学
- 心理物理学的精神物理.
- 感官整合 感官整合
背景情况:
- 多模式刺激集成对感知至关重要.
- 对多式联络对象的注意力机制尚不清楚.
- 之前关于听觉注意力对视觉刺激的影响的研究使用了加快的反应,使知觉效应不清楚.
研究的目的:
- 调查听觉刺激是否会自动吸引注意力到与空间相吻合的视觉刺激.
- 为了确定非自愿的听觉注意力是否提高了视觉刺激在感知层面上的检测能力.
主要方法:
- 进行了心理物理实验.
- 参与者执行了涉及听觉和视觉刺激的检测任务.
- 判断是基于感知检测能力,而不是加快反应.
主要成果:
- 一个突然的,无关紧要的声音显著提高了随后在同一位置的视觉闪光的检测能力.
- 这种改善发生在感知层面,而不仅仅是在决策或响应过程中.
结论:
- 不自愿的听觉注意力增强了视觉刺激的早期感知处理.
- 听觉刺激可以通过注意力自动调节视觉感知.
- 这些发现提供了心理物理证据,证明了跨模式的注意力对感知的影响.
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