Visual Field

McKeever, Walter F.; Gill, Kathleen M.
February 1974
Journal of Learning Disabilities;Feb1974, Vol. 7 Issue 2, p97
Academic Journal
This article reports that previous studies have demonstrated that words channeled to the left cerebral hemisphere are much more readily reported than words channeled to the right hemisphere. Further, pilot data tend to show that even with left visual field exposures two or three times as long as right visual field exposures, left visual field recognitions do not increase markedly. Viewing words presented with unequal visual half-field exposures yields the impression of high contrast letters in the left visual field and low contrast words in the right visual field. Studies of visual masking in central vision show that two sequential stimuli delivered to the same retinal area or to adjacent retinal areas do interfere with one another, with recognition of the initial stimulus hampered more than recognition of the following stimulus. The greater masking in this direction is taken to indicate that the processing of the initial stimulus could not be completed prior to interruption by the second stimulus.


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