35 Result(s)
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Chapter and Conference Paper
A Braitenberg Lizard: Continuous Phonotaxis with a Lizard Ear Model
The peripheral auditory system of a lizard is structured as a pressure difference receiver with strong broadband directional sensitivity. Previous work has demonstrated that this system can be implemented as a...
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Reference Work Entry In depth
Evolution of the Auditory System: In Reptiles and Birds
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Article
Acoustical Coupling of Lizard Eardrums
Lizard ears are clear examples of two-input pressure-difference receivers, with up to 40-dB differences in eardrum vibration amplitude in response to ipsi- and contralateral stimulus directions. The directiona...
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Article
Modelling asymmetry in the peripheral auditory system of the lizard
The ears of lizards are highly directional. The directionality is generated by strong acoustical coupling of the eardrums. A simple lumped-parameter model of the ear followed by binaural comparisons has been s...
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Chapter
Amphibian Bioacoustics
Anuran amphibians (frogs and toads) of most of the 3,500 species that exist today are highly vocal animals. In most frogs, males will spend considerable energy on calling and incur sizeable predation risks and...
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Article
Tone and call responses of units in the auditory nerve and dorsal medullary nucleus of Xenopus laevis
The clawed frog Xenopus laevis produces vocalizations consisting of distinct patterns of clicks. This study provides the first description of spontaneous, pure-tone and communication-signal evoked discharge prope...
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Chapter and Conference Paper
Modelling the Peripheral Auditory System of Lizards
Lizards, such as Mabuya macularia or Gecko gecko, have a relatively simple peripheral auditory system structured as a pressure difference receiver with a strong broadband directional sensitivity. In this paper we...
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Chapter
Directional Hearing in Nonmammalian Tetrapods
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Article
Directionality of auditory nerve fiber responses to pure tone stimuli in the grassfrog, Rana temporaria. II. Spike timing
We studied the directionality of spike timing in the responses of single auditory nerve fibers of the grass frog, Rana temporaria, to tone burst stimulation. Both the latency of the first spike after stimulus on...
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Article
Directionality of auditory nerve fiber responses to pure tone stimuli in the grassfrog, Rana temporaria. I. Spike rate responses
We studied the directionality of spike rate responses of auditory nerve fibers of the grassfrog, Rana temporaria, to pure tone stimuli. All auditory fibers showed spike rate directionality. The strongest directi...
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Article
Echolocation in two very small bats from Thailand Craseonycteris thonglongyai and Myotis siligorensis
The echolocation and hunting behavior of two very small bats, Craseonycteris thonglongyai (Hill) and Myotis siligorensis (Horsfield), from Thailand, were investigated using multiflash photographs, video, and high...
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Article
Peripheral origins and functional characteristics of vibration-sensitive VIIIth nerve fibers in the frog Rana temporaria
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The peripheral origins of vibration-sensitive VIIIth nerve fibers in European grassfrogs (Rana temporaria) we...
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Article
Biophysics of directional hearing in the frog Eleutherodactylus coqui
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We used laser vibrometry and free field sound stimulation to study the frequency responses of the eardrum and...
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Article
Response characteristics of vibration-sensitive neurons in the midbrain of the grassfrog,Rana temporaria
European grassfrogs (Rana temporaria) were stimulated with pulsed sinusoidal, vertical vibrations (10–300 Hz) and the responses of 46 single midbrain neurons were recorded in awake, immobilized animals.
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Article
The response characteristics of vibration-sensitive saccular fibers in the grassfrog,Rana temporaria
The response characteristics of saccular nerve fibers in European grassfrogs (Rana temporaria) subjected to dorso-ventral, 10–200 Hz sinusoidal vibrations were studied.
