Topography of acoustic response characteristics in the auditory cortex of the Kunming mouse  

作　　者：Junxian Shen Zhimin Xu Yudong Yao 

机构地区：[1]Chinese Acad Sci, Inst Biophys, Beijing 100101, Peoples R China

出　　处：《Chinese Science Bulletin》2000年第5期443-448,共6页

摘　　要：Topography of acoustic response characteristics in the auditory cortex (AC) of the Kunming (KM) mouse has been examined by using microelectrode recording techniques. Based on best-frequency (BF) maps, both the primary auditory field (Al) and the anterior auditory field (AAF) are tonotopically organized with a counter running frequency gradient. within an isofrequency stripe, the width of the frequency-threshold curves of single neurons increases, and minimum threshold (MT) decreases towards more ventral locations. BFs in Al and AAF range from 4 to 38 kHz. Auditory neurons with BFs above 40 kHz are located at the rostrodorsal part of the AC. The findings suggest that the KM mouse is a good model suitable for auditory research.Topography of acoustic response characteristics in the auditory cortex (AC) of the Kunming (KM) mouse has been examined by using microelectrode recording techniques. Based on best-frequency (BF) maps, both the primary auditory field (AI) and the anterior auditory field (AAF) are tonotopically organized with a counter running frequency gradient. Within an isofrequency stripe, the width of the frequency-threshold curves of single neurons increases, and minimum threshold (MT) decreases towards more ventral locations. BFs in AI and AAF range from 4 to 38 kHz. Auditory neurons with BFs above 40 kHz are located at the rostrodorsal part of the AC. The findings suggest that the KM mouse is a good model suitable for auditory research.

关 键 词：MOUSE AUDITORY CORTEX TOPOGRAPHY of ACOUSTIC response characteristics frequency-threshold curve. 

分 类 号：Q43[生物学—生理学]