Motion perception deficits from midline cerebellar lesions in human
M. Nawrot, and M. Rizzo. Vision Research, 35 (5):
723--731(March 1995)
Abstract
Although visual motion processing is commonly thought to be mediated solely by visual cortical areas, this human lesion study suggests that the cerebellum also has a role. We found motion direction discrimination deficits in a group of patients with acute midline cerebellar lesions. Unlike normals and patients with hemispheric cerebellar lesions, these patients with midline lesions were unable to discern a global motion vector in a local stochastic motion display. This resembles the perceptual defect reported following cortical area MT lesions in primates. This motion perception deficit may result from damage to a cerebellar mechanism involved in perceptual stabilization. Disruption of this comparator mechanism is sufficient to produce a severe motion perception deficit even though cortical visual processing mechanisms are still intact.
Description
ScienceDirect - Vision Research : Motion perception deficits from midline cerebellar lesions in human
%0 Journal Article
%1 keyhere
%A Nawrot, Mark
%A Rizzo, Matthew
%D 1995
%J Vision Research
%K Brain Cerebellum Cortical Motion Subcortical circuits lesions perception
%N 5
%P 723--731
%T Motion perception deficits from midline cerebellar lesions in human
%U http://www.sciencedirect.com/science/article/B6T0W-494SR5V-X/2/3875555fe3075f1c2b78aca2771c8162
%V 35
%X Although visual motion processing is commonly thought to be mediated solely by visual cortical areas, this human lesion study suggests that the cerebellum also has a role. We found motion direction discrimination deficits in a group of patients with acute midline cerebellar lesions. Unlike normals and patients with hemispheric cerebellar lesions, these patients with midline lesions were unable to discern a global motion vector in a local stochastic motion display. This resembles the perceptual defect reported following cortical area MT lesions in primates. This motion perception deficit may result from damage to a cerebellar mechanism involved in perceptual stabilization. Disruption of this comparator mechanism is sufficient to produce a severe motion perception deficit even though cortical visual processing mechanisms are still intact.
@article{keyhere,
abstract = {Although visual motion processing is commonly thought to be mediated solely by visual cortical areas, this human lesion study suggests that the cerebellum also has a role. We found motion direction discrimination deficits in a group of patients with acute midline cerebellar lesions. Unlike normals and patients with hemispheric cerebellar lesions, these patients with midline lesions were unable to discern a global motion vector in a local stochastic motion display. This resembles the perceptual defect reported following cortical area MT lesions in primates. This motion perception deficit may result from damage to a cerebellar mechanism involved in perceptual stabilization. Disruption of this comparator mechanism is sufficient to produce a severe motion perception deficit even though cortical visual processing mechanisms are still intact.},
added-at = {2008-03-16T07:29:54.000+0100},
author = {Nawrot, Mark and Rizzo, Matthew},
biburl = {https://www.bibsonomy.org/bibtex/2d568924ec4736bebba6688e4dcb5e7b5/hubertusbecker},
description = {ScienceDirect - Vision Research : Motion perception deficits from midline cerebellar lesions in human},
interhash = {ddf435d33bb736472ac9a268916eb9ca},
intrahash = {d568924ec4736bebba6688e4dcb5e7b5},
journal = {Vision Research},
keywords = {Brain Cerebellum Cortical Motion Subcortical circuits lesions perception},
month = {#mar#},
number = 5,
pages = {723--731},
timestamp = {2008-03-16T07:29:54.000+0100},
title = {Motion perception deficits from midline cerebellar lesions in human},
url = {http://www.sciencedirect.com/science/article/B6T0W-494SR5V-X/2/3875555fe3075f1c2b78aca2771c8162},
volume = 35,
year = 1995
}