VEP responses to op-art stimuli

O'Hare, Louise, Clarke, Alasdair and Pollux, Petra (2015) VEP responses to op-art stimuli. PLoS ONE, 10 (9). e0139400. ISSN 1932-6203

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VEP responses to op-art stimuli
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Several types of striped patterns have been reported to cause adverse sensations described as visual discomfort. Previous research using op-art-based stimuli has demonstrated that spurious eye movement signals can cause the experience of illusory motion, or shimmering effects, which might be perceived as uncomfortable. Whilst the shimmering effects are one cause of discomfort, another possible contributor to discomfort is excessive neural responses: As striped patterns do not have the statistical redundancy typical of natural images, they are perhaps unable to be encoded efficiently. If this is the case, then this should be seen in the amplitude of the EEG response. This study found that stimuli that were judged to be most comfortable were also those with the lowest EEG amplitude. This provides some support for the idea that excessive neural responses might also contribute to discomfort judgements in normal populations, in stimuli controlled for perceived contrast.

Keywords:Illusory motion, Op-art stimuli, Excessive neural responses, Discomfort, JCOpen
Subjects:C Biological Sciences > C830 Experimental Psychology
Divisions:College of Social Science > School of Psychology
ID Code:18784
Deposited On:21 Sep 2015 09:40

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