Neural Coding of Sound Frequency by Cricket Auditory Receptors
نویسندگان
چکیده
منابع مشابه
Neural coding of sound frequency by cricket auditory receptors.
Crickets provide a useful model to study neural processing of sound frequency. Sound frequency is one parameter that crickets use to discriminate between conspecific signals and sounds made by predators, yet little is known about how frequency is represented at the level of auditory receptors. In this paper, we study the physiological properties of auditory receptor fibers (ARFs) by making sing...
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Teleogryllus oceanicus is particularly sensitive to two ranges of sound frequency, one corresponding to intraspecific acoustical signals (4-5 kHz) and the other to the echolocation cries of bats (25-50 kHz). We recorded summed responses of the auditory nerve to stimuli in these two ranges. Nerve responses consist of trains of compound action potentials (CAPs), each produced by the summed activi...
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The century-old duplex theory of sound localization posits that low- and high-frequency sounds are localized with two different acoustical cues, interaural time and level differences (ITDs and ILDs), respectively. While behavioral studies in humans and behavioral and neurophysiological studies in a variety of animal models have largely supported the duplex theory, behavioral sensitivity to ILD ...
متن کاملNeural representation of sound amplitude by functionally different auditory receptors in crickets.
The physiological characteristics of auditory receptor fibers (ARFs) of crickets, a model system for studying auditory behaviors and their neural mechanisms, are investigated. Unlike auditory receptor neurons of many animals, cricket ARFs fall into three distinct populations based on characteristic frequency (CF) [Imaizumi and Pollack, J. Neurosci. 19, 1508-1516 (1999)]. Two of these have CFs s...
متن کاملNeural Coding and Auditory
The long-term goal of this research is to understand the neural mechanisms that mediate the ability of normal-hearing people to understand speech and localize sounds in everyday acoustic environments comprising reverberation and competing sound sources. Our research has been primarily focused in three areas: (1) Effect of reverberation on the directional sensitivity and coding of amplitude enve...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 1999
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.19-04-01508.1999