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  • Forebrain commissures  (2)
  • Interhemispheric transfer  (1)
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  • 1
    ISSN: 1432-1106
    Keywords: Early lesion effects ; Forebrain commissures ; Interocular transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Four monkeys with their forebrain commissures transected during the newborn period and four others of comparable age but with their commissures sectioned in later life sustained further midsagittal section of the optic chiasma. They were then tested on the interocular transfer of a series of visual discrimination tasks involving brightness, color and pattern cues. No definite differences in the characteristics of transfer were found between the groups, and none of the animals exhibited clear-cut evidence for positive transfer on the tasks as a whole.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1106
    Keywords: Delayed response ; Delayed alternation ; Forebrain commissures ; Interhemispheric transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Monkeys with the neocortical commissures and the optic chiasm sectioned still exhibit a substantial contralateral generalization of delayed response and delayed alternation learning even though the sensory and motor activities during learning are restricted to a single hemisphere. The commissure and chiasma transections, on the other hand, interrupt the contralateral generalization of unilaterally acquired, visual stimulus (color) dependent Go, No-go performances. The differences in outcome between these two types of tasks appears to depend upon the presence or absence of a cueing of correct performance by specific exteroceptive sensory stimuli.
    Type of Medium: Electronic Resource
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