The effects of lesions of area V4 on the visual abilities of macaques: colour categorization

doi:10.1016/S0166-4328(05)80327-4

Behavioural Brain Research

Volume 52, Issue 1, 30 November 1992, Pages 81-89

https://doi.org/10.1016/S0166-4328(05)80327-4 Get rights and content

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.

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The effects of lesions of area V4 on the visual abilities of macaques: colour categorization

Vis. Res.

Behav. Brain Res.

J. Human. Evol.

Brain Res.

Vis. Res.

Vis. Res.

Behav. Brain Res.

Neuropsychologia

Vis. Res.

Neuroscience

Neuroscience

Color-name as a function of wavelength

Am. J. Psychol.

Memory colours of familiar objects

J. Opt. Soc. Am.

Perceptual categories in vision and audition

The categories of hue in infancy

Science

Category effects in color memory

Color Res. Appl.

Bezold-Brucke hue shift measured by color-naming technique

J. Opt. Soc. Am.

Centroids of color categories compared by two methods

Color Res. Appl.

Locating basic colors in the OSA space

Color Res. Appl.

Stimulus generalization in monkeys with inferotemporal and lateral occipital lesions

Effects of inferotemporal lesions on the behaviour of monkeys

Psychol. Bull.

Visual cortex ablation and thresholds for successively presented stimuli in rhesus monkeys. 1. Orientation

Exp. Brain Res.

Visual cortex ablation and thresholds for successively presented stimuli in rhesus monkeys. 2. Hue

Exp. Brain Res.