Abstract:
:A number of studies involving recognition of tachistoscopically presented words have reported that the typical right visual field performance superiority associated with linguistic stimuli is enhanced by bilateral presentations (simultaneous stimuli in both visual half-fields) compared to unilateral presentations (stimuli in only one half-field on a trial). We have reported the same phenomenon, however, using visual spatial patterns in a search paradigm (E. W. Yund, R. Efron, & D. R. Nichols, 1990c. Brain and Cognition, 12, 117-127) and have accounted for it in terms of the operating characteristics of a visual scanning mechanism which serially examines a decaying neural representation of the stimuli. In the present experiment we attempted to exploit these operating characteristics to influence this difference between unilateral and bilateral presentations. The results not only are consistent with the assumptions of the scanning hypothesis but they also provide new information pertinent to the operating characteristics of this mechanism.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Efron R,Yund EW,Nichols DRdoi
10.1016/0278-2626(90)90009-dsubject
Has Abstractpub_date
1990-01-01 00:00:00pages
128-43issue
1eissn
0278-2626issn
1090-2147journal_volume
12pub_type
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