Activity of pursuit neurons in the caudal part of the frontal eye fields during static roll-tilt

Kurkin, Sergei A.; Akao, Teppei; Fukushima, Junko; Fukushima, Kikuro

Activity of pursuit neurons in the caudal part of the frontal eye fields during static roll-tilt

Kurkin, Sergei A.; Akao, Teppei; Fukushima, Junko et al.

Experimental Brain Research, 2007, 176(4), 658-664

Permalink : https://hdl.handle.net/2115/18876

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/18876
タイトル	Activity of pursuit neurons in the caudal part of the frontal eye fields during static roll-tilt
著者	Kurkin, Sergei A. ; Akao, Teppei ; Fukushima, Junko ; Fukushima, Kikuro
e-Rad_Researcher 00344466 著者名 Kurkin, Sergei A.
著者名 Akao, Teppei
e-Rad_Researcher 40208939 著者名 Fukushima, Junko
e-Rad_Researcher 70091486 著者名 Fukushima, Kikuro
言語	英語
キーワード	Smooth pursuit
	Frontal eye fields
	Coordinate frames
	Preferred direction
	Resting rate
	Static roll-tilt
	Monkey
発行日	2007-02
出版者	Springer Berlin / Heidelberg
収録物名	Experimental Brain Research
巻(号)	176(4)
ページ	658-664
抄録	The smooth-pursuit system and vestibular system interact to keep the retinal target image on the fovea during head and/or whole body movements. The caudal part of the frontal eye fields (FEF) in the fundus of arcuate sulcus contains pursuit neurons and the majority of them respond to vestibular stimulation induced by whole-body rotation, that activates primarily semi-circular canals, and by whole-body translation, that activates otoliths. To examine whether coordinate frames representing FEF pursuit signals are orbital or earth-vertical, we compared preferred directions during upright and static, whole-body roll-tilt in head- and trunk-restrained monkeys. Preferred directions (re monkeys’ head/trunk axis) of virtually all pursuit neurons tested (n = 21) were similar during upright and static whole-body roll-tilt. The slight shift of preferred directions of the majority of neurons could be accounted for by ocular counter-rolling. The mean (±SD) differences in preferred directions between upright and 40° right ear down and between upright and 40° left ear down were 6° (±6°) and 5° (±5°), respectively. Visual motion preferred directions were also similar in five pursuit neurons tested. To examine whether FEF pursuit neurons could signal static whole-body roll-tilt, we compared mean discharge rates of 29 neurons during fixation of a stationary spot while upright and during static, whole-body roll-tilt. Virtually all neurons tested (28/29) did not exhibit a significant difference in mean discharge rates between the two conditions. These results suggest that FEF pursuit neurons do not signal static roll-tilt and that they code pursuit signals in head/trunk-centered coordinates.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	The original publication is available at www.springerlink.com
PISSN	0014-4819
EISSN	1432-1106
関連情報	PMID 17216147
関連情報	URI http://www.springerlink.com
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1007/s00221-006-0830-y