Rothen Nicolas, Meier Beat
Institute of Psychology and Center for Cognition, Learning and Memory, University of Bern, Bern, Switzerland.
Institute of Psychology and Center for Cognition, Learning and Memory, University of Bern, Bern, Switzerland.
Conscious Cogn. 2016 Nov;46:1-6. doi: 10.1016/j.concog.2016.09.012. Epub 2016 Sep 24.
We investigated whether circadian arousal affects perceptual priming as a function of whether stimuli were attended or ignored during learning. We tested 160 participants on- and off-peak with regards to their circadian arousal. In the study phase, they were presented with two superimposed pictures in different colours. They had to name the pictures of one colour while ignoring the others. In the test phase, they were presented with the same and randomly intermixed new pictures. Each picture was presented in black colour in a fragment completion task. Priming was measured as the difference in fragmentation level at which the pictures from the study phase were named compared to the new pictures. Priming was stronger for attended than ignored pictures. Time of day affected priming only for ignored pictures, with stronger priming effects off-peak than on-peak. Thus, circadian arousal seems to favour the encoding of unattended materials specifically at off-peak.
我们研究了昼夜节律性唤醒是否会根据学习过程中刺激是被关注还是被忽略而影响知觉启动。我们对160名参与者在昼夜节律性唤醒的高峰期和非高峰期进行了测试。在研究阶段，向他们呈现两张不同颜色叠加的图片。他们必须说出一种颜色的图片，同时忽略其他颜色的图片。在测试阶段，向他们呈现相同的以及随机混合的新图片。在片段完成任务中，每张图片都以黑色呈现。启动被测量为与新图片相比，研究阶段的图片被命名时的片段化水平差异。被关注的图片比被忽略的图片启动更强。一天中的时间仅对被忽略的图片的启动有影响，非高峰期的启动效应比高峰期更强。因此，昼夜节律性唤醒似乎特别有利于在非高峰期对未被关注的材料进行编码。
