Sensory Processing in the Peripheral Auditory System of Treefrogs (Hyla)
Sensory Processing in the Peripheral Auditory System of Treefrogs (Hyla)
复制标题
树蛙（Hyla）周围听觉系统的感觉处理
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
R. R. Capranica
中科院分区：
文献类型：
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作者：
A. J. Moffat;R. R. Capranica
用绿树蛙（Hyla cinerea）和吠树蛙（H. gratiosa）的听神经单纤维记录对各种声音的反应。根据它们对音调的敏感度，单位可以分为三种不同的类别。在H. cinerea中，一类对100-500 Hz的低频最敏感；第二类对500-1200赫兹最敏感；第三类对3100-3800赫兹的响应最好。在这两种情况下，在相应的中频范围内增加能量可以抑制低频光纤的响应。这种抑制起源于内耳；它不是由于传出活动。其他纤维的反应不能被抑制。每个类中的大多数单位都是自发活动的。每个类别内的阈值变化很大；单个纤维的放电速率在约40 dB的强度范围内单调增加。每一类光纤都可以“跟踪”脉冲重复率高达250-400 /秒。我们的研究结果表明，树木的外周听觉系统…
Responses to various sounds were recorded from single fibers in the auditory nerve of the green treefrog (Hyla cinerea) and the barking treefrog (H. gratiosa). Based on their sensitivity to tones, units fall into one of three distinct classes. In H. cinerea, one class is most sensitive to low frequencies 100–500 Hz; a second class is most sensitive to 500–1200 Hz; the third class responds best to 3100–3800 Hz. In both species, responses of low‐frequency fibers can be inhibited by addition of energy in the corresponding mid‐frequency range. This inhibition originates in the inner ear; it is not due to efferent activity. Responses of the other fibers cannot be inhibited. Most units in each class are spontaneously active. Thresholds within each class vary over a wide range; firing rates of individual fibers increase monotonically over an intensity range of about 40 dB. Fibers in each class can “follow” pulse repetition rates up to 250–400/sec. Our results suggest that the peripheral auditory system of treefr...