Interactive perceptual and attentional limits in visual extinction

Lilach Shalev, Eran Chajut, Glyn W. Humphreys

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים


We report a case-study of YE, a 54-year-old person who suffered multiple shell injuries that caused a right-parietal lesion and left hemianopia, almost 30 years ago. We conducted 4 experiments using a basic extinction paradigm in which YE had to report single stimuli presented on the left or right or two stimuli presented simultaneously in both visual fields. We show that extinction was selectively affected both by increasing the relative perceptual salience of the contralesional stimulus and by cueing attention to the contralesional side. The effects of perceptual salience and attentional cueing interacted, with cueing being more effective when the stimuli had relatively high perceptual salience. The data are consistent with attentional and perceptual factors interacting to determine the competition between left and right side stimuli that underlies extinction.

שפה מקוריתאנגלית
עמודים (מ-עד)452-462
מספר עמודים11
כתב עתNeurocase
מספר גיליון6
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - דצמ׳ 2005

הערה ביבליוגרפית

Copyright 2008 Elsevier B.V., All rights reserved.

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