Abstract：
:Monkeys with V4 lesions and unoperated controls were tested behaviourally for their perception of the colour categories red, green, blue and yellow. As expected, the monkeys with V4 lesions took longer to acquire the colour discriminations. However, the pattern of learning was the same in the two groups of animals. Both the lesioned and the control animals made more errors when the stimuli to be discriminated belonged to the same colour category than when they belonged to different categories and thus showed normal colour categorization. The results suggest that monkeys with V4 lesions perceive the colour spectrum according to the same fundamental perceptual categories as normal monkeys and humans, and thus support the view that, in the colour domain, the four basic perceptual categories are constructed by chromatic mechanisms operating earlier than visual area V4.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Walsh V,Kulikowski JJ,Butler SR,Carden Ddoi
10.1016/s0166-4328(05)80327-4subject
Has Abstractpub_date
1992-11-30 00:00:00pages
81-9issue
1eissn
0166-4328issn
1872-7549pii
S0166-4328(05)80327-4journal_volume
52pub_type
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