Identifying objects across saccades: effects of extrafoveal preview and flanker object context.
Two object-naming experiments explored the influence of extrafoveal preview information and flanker object context on transsaccadic object identification. Both the presence of an extrafoveal preview of the target object and the contextual constraint provided by extrafoveal flanker objects were found to influence the speed of object identification, but the latter effect occurred only when an extrafoveal preview of the target object was not presented prior to fixation. The context effect was found to be due to facilitation from related flankers rather than inhibition from unrelated flankers. No evidence was obtained for the hypothesis that constraining context can increase the usefulness of an extrafoveal preview of a to-be-fixated object.
Henderson
J M
JM
University of Alberta, Edmonton, Canada.
D000328:Adult; D001288:Attention; D005403:Fixation, Ocular; D006801:Humans; D010364:Pattern Recognition, Visual; D011930:Reaction Time; D012438:Saccades; D014794:Visual Fields