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Suppression of displacement in severely slowed saccades

MacAskill, Michael R and Anderson, Tim J and Jones, Richard D (2000) Suppression of displacement in severely slowed saccades. [Journal (Paginated)]

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Abstract

Severely slowed saccades in <I>spinocerebellar ataxia</I> have previously been shown to be at least partially closed-loop in nature: their long duration means that they can be modified in-flight in response to intrasaccadic target movements. In this study, a woman with these pathologically slowed saccades could modify them in-flight in response to target movements, even when saccadic suppression of displacement prevented conscious awareness of those movements. Thus saccadic suppression of displacement is not complete, in that it provides perceptual information that is sub-threshold to consciousness but which can still be effectively utilised by the oculomotor system.

Item Type:Journal (Paginated)
Keywords:saccadic suppression of displacement slowed saccades visuomotor control feedback spinocerebellar ataxia
Subjects:Neuroscience > Neurology
Psychology > Perceptual Cognitive Psychology
Psychology > Psychophysics
ID Code:1163
Deposited By: MacAskill, Michael
Deposited On:19 Dec 2000
Last Modified:11 Mar 2011 08:54

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