Open AccessFailure to Replicate the Increased Temporal Resolution Induced by Images That Give Impression of Danger
Author(s) -
Nomura Keishi,
Yotsumoto Yuko
Publication year - 2018
Publication title -
japanese psychological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 30
eISSN - 1468-5884
pISSN - 0021-5368
DOI - 10.1111/jpr.12187
Subject(s) - replicate , impression , psychology , perception , confounding , impression formation , audiology , artificial intelligence , mathematics , computer science , statistics , social perception , medicine , neuroscience , world wide web
Abstract Kobayashi and Ichikawa (2016) recently reported that briefly presented images with dangerous impressions were detected with higher accuracy than images with safe impressions and concluded that the emotion evoked by such images improves temporal resolution of visual perception. In this study, we assessed confounding effects of the color saturations of the images used in their study. While attempting to replicate their results, we found the opposite results—that is, images with safe impressions were detected with higher accuracy than those with dangerous impressions. This likely reflected an observed correlation between color saturations and detection thresholds. To confirm the effects of color saturations, in subsequent experiments, we independently examined the effects of emotion and of color characteristics. We concluded that the previously reported increased temporal resolution was due to the confounding effect of color saturation, and not by the evoked emotion.