| タイトル |
-
en
Activity of pursuit neurons in the caudal part of the frontal eye fields during static roll-tilt
|
| 作成者 |
|
| アクセス権 |
open access |
| 権利情報 |
-
en
The original publication is available at www.springerlink.com
|
| 主題 |
-
Other
en
Smooth pursuit
-
Other
en
Frontal eye fields
-
Other
en
Coordinate frames
-
Other
en
Preferred direction
-
Other
en
Resting rate
-
Other
en
Static roll-tilt
-
Other
en
Monkey
-
NDC
491.37
|
| 内容注記 |
-
Abstract
en
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.
|
| 出版者 |
en
Springer Berlin / Heidelberg
|
| 日付 |
|
| 言語 |
|
| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/18876
|
| 関連 |
-
URI
http://www.springerlink.com
-
isVersionOf
DOI
https://doi.org/10.1007/s00221-006-0830-y
-
PMID
17216147
|
| 収録誌情報 |
-
-
PISSN
0014-4819
-
EISSN
1432-1106
-
en
Experimental Brain Research
-
巻176
号4
開始ページ658
終了ページ664
|
| ファイル |
|
| コンテンツ更新日時 |
2023-07-26 |
