Is Emotion Perception Relative? Evaluating Sleep Effects on Relativity of Emotion Perception

摘要

The present study examines whether valence strength causes relativistic shifts in emotion perception form faces across sleep (filled vs deprived) nights. A group of twelve volunteers participated twice (sleepo-sleep) with fourteen days gap between participation. Subjects evaluated low valenced facial expressions (targets) in the presence on high valence facial expressions (anchors) before sleepo sleep nights and again the following morning. Analysis of results using 2×2×2 (groups, anchor, sessions) split plot analysis of variance suggest that larger relativistic shifts were apparent in the no-sleep group. Also post sleep relativistic shifts in emotion perception were the least (p<0.001). Sleep consolidates emotional memory for faces.