British Universities Film & Video Council

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Perimetry in Normal and Monocularly Pattern-Deprived Cats

Synopsis
The methods shown were developed during study of the effects of monocular visual deprivation. From the age of eight months the cats were forced to use their deprived eye. The cat is conditioned to a noise indicating the position of a food pellet; the position of the noise becomes the fixation point of the cat and the cat will normally run directly to this point when the hand in front of its eye is moved. When the pellet is elsewhere than at the fixation point, the cat will go directly to it only if it is in the visual field. Use of smell as a cue is disproved by tests which show that when blindfolded the cat is guided solely by the position of the noise stimulus. Perimetry in both the horizontal and vertical plane is shown, using both monocularly deprived and normal cats. The respective visual fields and typical deficits are shown both behaviourally and in a diagrammatic presentation.
Language
English
Country
Great Britain
Medium
Film; Film. 16mm. sd. b&w. 17 min.
Technical information
Black-and-white / Sound
Year of production
1974
Availability
Hire
Subjects
Biology; Psychology
Keywords
cats; visual perception

Credits

Writer
Prof van Hof-van Duijn

Distribution Formats

Type
Film
Format
16mm

Distributor

Name

BSIP Europrofile Ltd

Phone
020 8946 8644
Fax
020 8946 4599
Address
Hill House
96 Wimbledon Hill
London
SW19 7PB
Notes
Contact: Dr Hartley Millar (2/01), e-mail hmillar@cix.couk

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