Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).

The effect of bilateral area 5 lesions on the analysis of proprioceptive information and the guidance of reaching movements was studied in three rhesus monkeys. In the first paradigm (Proprioceptive discrimination test) the monkeys were trained to discriminate between movements of a joystick to the...

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Egile Nagusiak: Nixon, P, Burbaud, P, Passingham, R
Formatua: Journal article
Hizkuntza:English
Argitaratua: 1992
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author Nixon, P
Burbaud, P
Passingham, R
author_facet Nixon, P
Burbaud, P
Passingham, R
author_sort Nixon, P
collection OXFORD
description The effect of bilateral area 5 lesions on the analysis of proprioceptive information and the guidance of reaching movements was studied in three rhesus monkeys. In the first paradigm (Proprioceptive discrimination test) the monkeys were trained to discriminate between movements of a joystick to the right or left without visual control; they reported the direction of movement by touching or not touching a screen (go/no-go task). After area 5 had been removed, the monkeys were only mildly impaired on this test. It is concluded that such simple joint movement could be analysed in area 2, area 5 being concerned with more complex arm movements. In the second paradigm (Searching test) the monkey had to find a peanut on a board in the dark using proprioceptive information stored in memory during previous trials. After area 5 lesions, the number of correct reaches was not modified but the number of errors after an incorrect trial (correcting movement) was significantly increased. The data suggests that when visual input is not available, area 5 is involved in the guidance of arm movements on the basis of proprioceptive inputs.
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spelling oxford-uuid:5657d467-a3d1-4a51-9488-cf9dfbbe45d62022-03-26T16:49:43ZControl of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5657d467-a3d1-4a51-9488-cf9dfbbe45d6EnglishSymplectic Elements at Oxford1992Nixon, PBurbaud, PPassingham, RThe effect of bilateral area 5 lesions on the analysis of proprioceptive information and the guidance of reaching movements was studied in three rhesus monkeys. In the first paradigm (Proprioceptive discrimination test) the monkeys were trained to discriminate between movements of a joystick to the right or left without visual control; they reported the direction of movement by touching or not touching a screen (go/no-go task). After area 5 had been removed, the monkeys were only mildly impaired on this test. It is concluded that such simple joint movement could be analysed in area 2, area 5 being concerned with more complex arm movements. In the second paradigm (Searching test) the monkey had to find a peanut on a board in the dark using proprioceptive information stored in memory during previous trials. After area 5 lesions, the number of correct reaches was not modified but the number of errors after an incorrect trial (correcting movement) was significantly increased. The data suggests that when visual input is not available, area 5 is involved in the guidance of arm movements on the basis of proprioceptive inputs.
spellingShingle Nixon, P
Burbaud, P
Passingham, R
Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).
title Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).
title_full Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).
title_fullStr Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).
title_full_unstemmed Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).
title_short Control of arm movement after bilateral lesions of area 5 in the monkey (Macaca mulatta).
title_sort control of arm movement after bilateral lesions of area 5 in the monkey macaca mulatta
work_keys_str_mv AT nixonp controlofarmmovementafterbilaterallesionsofarea5inthemonkeymacacamulatta
AT burbaudp controlofarmmovementafterbilaterallesionsofarea5inthemonkeymacacamulatta
AT passinghamr controlofarmmovementafterbilaterallesionsofarea5inthemonkeymacacamulatta