Impairments of visual object transforms in monkeys.
Monkeys were first trained on a series of standard, unchanging visual objects to obtain food reward. After reaching criterion on each subject, training with it continued but on 20 per cent of the trials the object was transformed in (1) size, (2) orientation, or in (3) its shadow configuration. Monkeys with lesions either of the inferotemporal cortex or the foveal prestriate region were impaired in identifying all three types of transforms as the rewarded object. They were also slightly impai...Expand abstract
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