Interhemispheric communication between extraoccipital visual areas in the monkey
1974; Elsevier BV; Volume: 67; Issue: 2 Linguagem: Inglês
10.1016/0006-8993(74)90278-9
ISSN1872-6240
AutoresSuzannah Bliss Tieman, Charles R. Hamilton,
Tópico(s)Multisensory perception and integration
ResumoAbstract Two experiments are reported that examined the ability of non-topographically organized visual areas in the extraoccipital cortex of rhesus monkeys to code the position of a stimulus within the visual field. Both experiments tested behaviorally for the transfer of visual information through the parts of the corpus callosum interconnecting these extraoccipital areas. The failure of go, no-go discriminations to transfer through these fibers in our first experiment contradicts an earlier suggestion that a lack of positional information prevented the interhemispheric transfer of two-choice discriminations while still permitting the comparison of patterned stimuli. In a second experiment we found that these fibers permitted the comparison of stimuli that differed by positional rather than figural cues, and thus we failed to support the hypothesis that the extraoccipital areas cannot code information about spatial localization within the visual field.
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