Normal right-handed male subjects were required to read the time on a clockface tachistoscopically presented in the right and left visual fields. The response had to be made both accurately and quickly. The number of errors was the same for the two visual fields, but the speed of the vocal response was higher for the left field suggesting a right-hemisphere dominance for this task. It is argued from this result that the factor of verbal codability is not sufficient to induce a right-field/left-hemisphere superiority in the case of a difficult visuo- spatial discrimination. © 1979.
The role of stimulus discriminability and verbal codability in hemispheric specialization for visuospatial tasks
BERLUCCHI, Giovanni;MARZI, Carlo Alberto;
1979-01-01
Abstract
Normal right-handed male subjects were required to read the time on a clockface tachistoscopically presented in the right and left visual fields. The response had to be made both accurately and quickly. The number of errors was the same for the two visual fields, but the speed of the vocal response was higher for the left field suggesting a right-hemisphere dominance for this task. It is argued from this result that the factor of verbal codability is not sufficient to induce a right-field/left-hemisphere superiority in the case of a difficult visuo- spatial discrimination. © 1979.
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