Involvement of memory-comparison-based change detection in visual distraction.
The involvement of memory-comparison-based change detection in visual distraction was elucidated. Not only luminance increments that engaged memory-comparison-based change detection and refractoriness-based rareness detection but also luminance decrements that engaged only memory-comparison-based change detection caused behavioral distraction, which was mirrored by a posterior negativity (240-260 ms, posterior N2) and a broad positivity (420-460 ms, P3a) that reflected attentional capture. Preceding these effects, luminance increments elicited a posterior positivity (100-120 ms, change-related positivity) and a posterior negativity (120-140 ms, change-related negativity), whereas luminance decrements elicited only a posterior positivity (160-180 ms, change-related positivity). These results suggest that memory-comparison-based change detection indexed by change-related positivity is involved in visual distraction as a result of attentional capture.
Kimura
Motohiro
M
Graduate School of Education, Hokkaido University, Sapporo, Japan. m-kimura@edu.hokudai.ac.jp
Katayama
Jun'ichi
J
Murohashi
Harumitsu
H
D000328:Adult; D003624:Darkness; D003627:Data Interpretation, Statistical; D004569:Electroencephalography / Q000187:drug effects; D005071:Evoked Potentials / Q000502:physiology; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D008568:Memory / Q000502:physiology*; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*