Left hemisphere superiority for visual search.
A replication of Cohen (1973) was conducted in an attempt to substantiate the claim for serial processing in the left hemisphere and parallel processing in the right hemisphere for visual information. Subjects made same or different judgments to hemispherically projected visual arrays of two, three, or four letters and reaction times were measured. No support for a serial vs. parallel hemispheric processing distinction was obtained, but strong support for overall left hemisphere superiority for visual search was found with both the reaction time and error percentage data. The implications for an information processing strategy for this task as well as various methodological considerations are discussed.
D002540:Cerebral Cortex / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D010364:Pattern Recognition, Visual / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D012691:Serial Learning / Q000502:physiology