Sound localization and use of binaural cues by the gerbil (Meriones unguiculatus).
Sound localization and use of binaural cues by the gerbil (Meriones unguiculatus).
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沙鼠（Meriones unguiculatus）的声音定位和双耳提示的使用。
DOI：
10.1037//0735-7044.102.3.422
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发表时间：
1988
影响因子：
1.9
通讯作者：
Heffner,HE
中科院分区：
文献类型：
--
作者：
Heffner,RS;Heffner,HE
噪声定位阈值和本地化能力纯音在60分离沙鼠进行了测定。使用具有观察反应的二选一程序训练沙鼠，其中沙鼠对从其左侧或右侧发出的声音做出左侧或右侧反应以获得食物。7只沙鼠对100 ms噪声脉冲串的平均75%正确定位阈值为27，具有机会性能（p> 0.05）。01)到达12。4沙鼠本地化低频和高频纯音的能力表明，沙鼠能够使用相位和强度差轨迹线索。音调定位最差的频率为2.8 kHz，远低于相位线索模糊的理论频率，但在哺乳动物听觉系统锁相下降的频率范围内。沙鼠的声音定位能力是典型的小型啮齿类动物，没有明显的迹象表明它受到最近在沙鼠身上发现的中枢听觉系统退行性障碍的影响。
Noise-localization thresholds and the ability to localize pure tones at 60 separation were determined for gerbils. The gerbils were trained using a two-choice procedure with observing response in which the gerbils made a left or right response to sounds emanating from their left or right side in order to obtain food. The average 75% correct localization threshold of 7 gerbils for a 100-ms noise burst was 27 with chance performance (p>. 01) reached at 12. The ability of 4 gerbils to localize both low-and high-frequency pure tones indicates that gerbils are able to use both phase-and intensity-difference locus cues. The frequency at which tone localization was poorest was 2.8 kHz, well below the theoretical frequency of ambiguity of the phase cue but within the frequency range at which phase locking declines in the mammalian auditory system. The sound localization ability of gerbils is typical of small rodents, and there is no obvious sign that it is affected by the degenerative disorder of the central auditory system which has been recently discovered in gerbils.