FREQUENCY REPRESENTATION IN THE AUDITORY MIDBRAIN AND FOREBRAIN OF A MARSUPIAL, THE NORTHERN NATIVE CAT (DASYURUS-HALLUCATUS)
FREQUENCY REPRESENTATION IN THE AUDITORY MIDBRAIN AND FOREBRAIN OF A MARSUPIAL, THE NORTHERN NATIVE CAT (DASYURUS-HALLUCATUS)
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DOI：
10.1159/000118669
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发表时间：
1986-01-01
影响因子：
1.7
通讯作者：
CLAREY, JC
中科院分区：
文献类型：
--
作者：
AITKIN, LM;IRVINE, DRF;CLAREY, JC
用微电极定位技术研究了麻醉有袋土猫听觉皮层和下丘的声频表征。这两个听觉区域的张力性组织与刷尾负鼠和Eutheria中描述的非常相似。在本地猫中似乎存在高频（bb0 - 10khz）的偏表示，而低于1khz的频率较少。单位阈值听力图表明7和12 kHz之间的最小阈值和30 kHz以上的高阈值。
The representation of sound ferquency was examined in the auditory cortex and inferior colliculus of anaesthetized marsupial native cats (Dasyurus hallucatus) using microelectrode mapping techniques. The tonotropic organizations of these two auditory regions are grossly similar to those described in brush-tailed possums and in Eutheria. There appears to exist a biased representation of high frequencies (> 10 kHz) in native cats and a paucity of frequencies below 1 kHz. Unit threshold audiograms indicate minimum thresholds between 7 and 12 kHz and high thresholds above 30 kHz.