書誌事項
- タイトル別名
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- Polyimide Multiple-site Surface Microelectrode for Epidural Cortical Recording of High Spatial Resolution Evoked-potentials
- ヒシツコウマク ジョウ カラ コウクウカン ブンカイノウ デ ユウハツ デンイ オ ケイソク スル タメ ノ ビショウ タテン ポリイミド ヒョウメン デンキョク ノ カイハツ
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High spatial resolution mapping of cortical evoked-potentials may offer efficient and less-invasive recording of overall neu-ronal activities. because the signals involve population of neurons' activities. This paper proposes and develops the multiple-site surface microelectrode that maps cortical evoked potentials with high spatial resolution, 32 recording sites over a 2-mm-square area, and each size of the sites is 100-μm-square. With lithographic technologies, the conductive gold layer is sandwiched between an insulating polyimide layer and a polyimide substrate. Unlike conventional silicon microelectrodes, the flexible polyimide substrate can follow the convex and pulsative cortical surface, and realize less-invasive epidural recording. The impedance of each site is around 75 kΩ at 1 kHz, proved small enough to detect reliable cortical signals. Through in vivo experiments on the rat auditory cortex, the electrode achieves significant auditory-evoked potential maps, which are useful for examining cortical functions and varieties of evoked potentials.
収録刊行物
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- 電気学会論文誌C(電子・情報・システム部門誌)
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電気学会論文誌C(電子・情報・システム部門誌) 122 (9), 1459-1468, 2002
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390282679586673920
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- NII論文ID
- 130006845203
- 10009587772
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- NII書誌ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL書誌ID
- 6283913
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- NDL
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