Takahashi T, Moiseff A, Konishi M
J Neurosci. 1984 Jul;4(7):1781-6. doi: 10.1523/JNEUROSCI.04-07-01781.1984.
Space-specific neurons, found in the barn owl's inferior colliculus, respond selectively to a narrow range of interaural time and intensity differences. We show that injecting a local anesthetic into one cochlear nucleus, nucleus magnocellularis, alters the space-specific cell's selectivity for interaural time difference, leaving its selectivity for interaural intensity difference intact. Anesthetizing the other cochlear nucleus, nucleus angularis, has the converse effects. We show also that the space-specific neuron's selectivity for one interaural cue is the same for all effective values of the other cue. We conclude that time and intensity cues are processed in separate neural channels of the barn owl's auditory system and that the two cues operate independently.
在谷仓猫头鹰的下丘中发现的空间特异性神经元，对狭窄范围的双耳时间和强度差异有选择性反应。我们发现，向一个耳蜗核（大细胞性核）注射局部麻醉剂，会改变空间特异性细胞对双耳时间差异的选择性，而其对双耳强度差异的选择性保持不变。麻醉另一个耳蜗核（角状核）则会产生相反的效果。我们还表明，对于另一个线索的所有有效值，空间特异性神经元对一个双耳线索的选择性都是相同的。我们得出结论，时间和强度线索在谷仓猫头鹰听觉系统的不同神经通道中进行处理，并且这两个线索独立起作用。
