Aitkin L M, Irvine D R, Nelson J E, Merzenich M M, Clarey J C
Brain Behav Evol. 1986;29(1-2):17-28. doi: 10.1159/000118669.
The representation of sound frequency was examined in the auditory cortex and inferior colliculus of anaesthetized marsupial native cats (Dasyurus hallucatus) using microelectrode mapping techniques. The tonotopic 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 (greater than 10kHz) in native cats and a paucity of frequencies below 1 kHz. Unit threshold audiograms indicate minimum thresholds between 7 and 12kHz and high thresholds above 30kHz.
使用微电极图谱技术，在麻醉的有袋类原生猫（袋鼬）的听觉皮层和下丘中检查了声音频率的表征。这两个听觉区域的音频定位组织与帚尾袋貂和真兽亚纲动物中描述的组织大致相似。在原生猫中似乎存在高频（大于10kHz）的偏向性表征，而低于1kHz的频率较少。单位阈值听力图表明7至12kHz之间的最低阈值和高于30kHz的高阈值。
