Optical imaging of neural activity in multiple auditory cortical fields of guinea pigs

被引：34

作者：

Horikawa, J ^{[1
]}

Hess, A ^{[1
]}

Nasu, M ^{[1
]}

Hosokawa, Y ^{[1
]}

Scheich, H ^{[1
]}

Taniguchi, I ^{[1
]}

机构：

[1] Tokyo Med & Dent Univ, Dept Neurophysiol, Chiyoda Ku, Tokyo 1010062, Japan

来源：

NEUROREPORT | 2001年 / 12卷 / 15期

关键词：

activation sequence of the multiple fields; auditory cortex; functional organization; isofrequency band; multiple fields; optical recording; spatiotemporal activity pattern;

D O I：

10.1097/00001756-200110290-00038

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Neural activity of multiple fields in the auditory cortex of anesthetized guinea pigs in response to pure tones was visualized by optical recording using a voltage-sensitive dye (RH795). Ten auditory fields were identified based on the tonotopic organization and response latency: the core fields consisting of the primary (Al) and secondary (All) fields and surrounding belt areas consisting of. dorso-anterior (IDA), dorsal (D), dorso-posterior (DP), posterior (P), ventro-posterior (VP), ventro-medial (VM), ventro-anterior (VA) and ventral (V) fields. Tonotopic organization was observed in all the fields apart from DA, D, DP and V. Spatio-temporal displays suggest that the auditory information spreads from the core fields of Al and All to belt fields via three distinct (dorsocaudal, caudal and ventrorostral) pathways. NeuroReport 12:3335-3339 (C) 2001 Lippincott Williams & Wilkins.

引用

页码：3335 / 3339

页数：5

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