Brain damage and global stereopsis

Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character
A Cowey, J Porter

Abstract

When a single object lies in front of or beyond the plane of fixation its retinal image lies on disparate positions in the two eyes. This 'local' retinal disparity is an excellent cue to depth, and retinal disparties of a few seconds of arc are detectable by people and monkeys. However, most visual scenes produce a complex array of contours in each eye and we can detect the disparity in the arrays despite the ambiguous nature of the disparities, i.e. each contour in one eye could be related to any of several similar contours in the other eye. This ability, known as 'global' stereopsis, may be selectively impaired following brain damage in man. Global stereopsis was measured in rhesus monkeys before and after removing a different cortical visual area in different groups of animals. Only removal of the inferotemporal cortex impaired global stereopsis. The result is related to the findings with human patients and to receptive field properties of neurons in the inferotemporal cortex of monkeys.

Citations

Jan 1, 1991·Neuropsychologia·M PtitoJ P Guillemot
Jan 1, 1989·Vision Research·P Apkarian, D Reits
Jan 1, 1983·Behavioural Brain Research·J E Ross
Sep 1, 1996·Behavioural Brain Research·M L CrawfordE L Smith
Jun 7, 2011·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Liat Gantz, Harold E Bedell
Apr 3, 2001·Annual Review of Neuroscience·B G Cumming, G C DeAngelis
Mar 5, 2014·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Ifan Betina IpHolly Bridge
Oct 13, 2004·Journal of Physiology, Paris·John D Pettigrew
Jan 1, 1982·Annals of the New York Academy of Sciences·B Julesz, W Kropfl
Feb 1, 1980·Australian Journal of Ophthalmology·D B DunlopP Dunlop
Jan 17, 2012·Neuron·Bram-Ernst VerhoefPeter Janssen
Jun 9, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Holly Bridge
Jun 9, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Bram-Ernst VerhoefPeter Janssen
Oct 1, 1990·Journal of Cognitive Neuroscience·D C Plaut, M J Farah
Apr 4, 2002·Journal of Neurophysiology·Masayuki WatanabeI Fujita
Nov 16, 2018·Proceedings of the National Academy of Sciences of the United States of America·Hiroki OishiKaoru Amano
Jul 19, 2000·Journal of Neurophysiology·T UkaI Fujita

Related Concepts

Metazoa
Anthropoidea
Mild Traumatic Brain Injury
Macaca mulatta
Visual Impairment
Visual Perception

Related Feeds

Brain Injury & Trauma

brain injury after impact to the head is due to both immediate mechanical effects and delayed responses of neural tissues.