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Effect of behavioral activity on hemodynamic responses induced by whisker stimulation in awake mice.

https://repo.qst.go.jp/records/70375
https://repo.qst.go.jp/records/70375
026163ff-5346-4deb-a029-ccd9813950d2
Item type 会議発表用資料 / Presentation(1)
公開日 2010-12-24
タイトル
タイトル Effect of behavioral activity on hemodynamic responses induced by whisker stimulation in awake mice.
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_c94f
資源タイプ conference object
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 Takuwa, Hiroyuki

× Takuwa, Hiroyuki

WEKO 691050

Takuwa, Hiroyuki

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Joonas, Autio

× Joonas, Autio

WEKO 691051

Joonas, Autio

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Masamoto, Kazuto

× Masamoto, Kazuto

WEKO 691052

Masamoto, Kazuto

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Obata, Takayuki

× Obata, Takayuki

WEKO 691053

Obata, Takayuki

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Kanno, Iwao

× Kanno, Iwao

WEKO 691054

Kanno, Iwao

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田桑 弘之

× 田桑 弘之

WEKO 691055

en 田桑 弘之

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ヨーナス オーティオ

× ヨーナス オーティオ

WEKO 691056

en ヨーナス オーティオ

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正本 和人

× 正本 和人

WEKO 691057

en 正本 和人

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小畠 隆行

× 小畠 隆行

WEKO 691058

en 小畠 隆行

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菅野 巖

× 菅野 巖

WEKO 691059

en 菅野 巖

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抄録
内容記述タイプ Abstract
内容記述 In this study, we measured cerebral blood flow (CBF) in awake mice with laser-Doppler flowmetry (LDF). A total of fifteen male C57BL/6J mice were prepared for attaching a custom-made metal head plate to the skull with dental acrylic under isoflurane anesthesia. One day after the surgery, the mice were tethered by screwing the head plate onto a metal rod. Below the animals, a styrofoam ball supported by a jet of air was set in the apparatus. The styrofoam ball freely rotated while the mice walked on it. Regional CBF in the somatosensory cortex and an amount of walking were concurrently monitored with L DF and an optical motion sensor that detect a rotation distance of the ball, respectively. Whisker stimulation (frequency 10 Hz and duration 20 sec) was induced a contra-lateral side of the measurement site. Firstly, whisker stimulation-induced blood flow response and behavior were measured during daytime and nighttime. The blood flow responses showed no significant differences between daytime and nighttime (24% and 23% of the pre-stimulus baseline, respectively), whereas the amount of walking was 22% higher under nighttime relative to daytime. Secondly, the blood flow response and behavior were measured from the same single animal over 7days. The mean coefficient of variance among multiple days was observed to be 0.11 (0.08 to 0.16) and 0.84 (0.52 t o 1.51) for blood flow response and amount of walking, respectively. These results indicate that blood flow response is a relatively stable and reproducible between daytime and nighttime and across multiple days, although amount of walking shows large variations. In conclusion, our system is feasible for a longitudinal study in awake animals.
会議概要(会議名, 開催地, 会期, 主催者等)
内容記述タイプ Other
内容記述 NEURO 2010
発表年月日
日付 2010-09-04
日付タイプ Issued
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