Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field.

Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field. Research Abstract Details 

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Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field. Abstract Text:

David E Moorman,Carl R Olson,

Neurons in the macaque supplementary eye field (SEF) fire at different rates in conjunction with planning saccades in different directions. They also exhibit object-centered spatial selectivity, firing at different rates when the target of the saccade is at the left or right end of a horizontal bar. To compare the rate of incidence of the two kinds of signal, and to determine how they combine, we recorded from SEF neurons while monkeys performed a task in which the target (a dot or the left or right end of a horizontal bar) could appear in any visual field quadrant. During the period when the target was visible on the screen and the monkey was preparing to make a saccade, many neurons exhibited selectivity for saccade direction, firing at a rate determined by the direction of the impending saccade irrespective of whether the target was a dot or the end of a bar. On bar trials, many of the same neurons exhibited object-centered selectivity, firing more strongly when the target was at the preferred end of the bar regardless of saccade direction. The rate of incidence of object-centered selectivity (33%) was lower overall than that of saccade-direction selectivity (56%). Signals related to saccade direction and the object-centered location of the target tended to combine additively. The results suggest that the SEF is at a transitional stage between representing the object-centered command and specifying the parameters of the saccade.

Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field. Publishing Authors By Initials

DE Moorman,CR Olson,

For similar visual fields research abstracts see: visual fields research

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Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Journal of neurophysiology

VOLUME: 97

Page Numbers: 3554-66

Journal Abbreviation: J. Neurophysiol.

ISSN: 0022-3077

DAY: 28

MONTH: 02

YEAR: 2007

Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field. Information

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LANGUAGE: eng

NlmUniqueID: 375404

Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field. Keywords Mesh Terms:

KEYWORDS: Visual Fields

MESH TERMS: physiology

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Grant and Affiliation Information for Combination of neuronal signals representing object-centered location and saccade direction in macaque supplementary eye field.

AFFILIATION: Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213-2683, USA.

Country: United States

AGENCY: United States NEI

GRANT: R01 EY-11831

ACRONYM: EY

MEDLINETA: J Neurophysiol

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