Cochlear hair‐cell populations and limits of resolution of hearing in two vespertilionid bats, Nyctalus noctula and Eptesicus serotinus

  title={Cochlear hair‐cell populations and limits of resolution of hearing in two vespertilionid bats, Nyctalus noctula and Eptesicus serotinus},
  author={H. Burda and L. {\'U}lehlov{\'a}},
  journal={Journal of Morphology},
A comparison of the population of cochlear hair cells with known hearing resolution capabilities in two species of bats (Nyctalus noctula and Eptesicus serotinus of the family Vespertilionidae) has revealed a close correlation between morphological and functional parameters. Data on number and densities of hair cells in the examined bat species are presented. Even though the species are of a comparable body size, N. noctula has a longer basilar membrane, a higher density, and hence also a… Expand
The receptor and neuron distribution in the cochlea of the bat, Taphozous kachhensis
A comparison with the bat, Nyctalus noctula of the family Vespertilionidae revealed a conspicuous similarity in some quantitative aspects of the cochlear structure, which may be looked upon as convergent adaptations given by similar flight, hunting, and echolocation strategies in both bat species. Expand
Cochlea in old world mice and rats (Muridae)
Thickness, and minimum width of basilar membrane and triad of outer hair cells and probably high‐frequency cutoff are species‐specific and independent of pinna or body size. Expand
Guinea pig cochlear hair cell density; its relation to frequency discrimination
  • H. Burda
  • Medicine, Biology
  • Hearing Research
  • 1984
The density of guinea pig cochlear hair cells fluctuates within a narrow range in a regular and species-specific manner. Two density maxima may be identified within the range. This pattern of densityExpand
Frequency tuning properties of neurons in the inferior colliculus of an FM bat
We examined frequency tuning characteristics of single neurons in the inferior colliculus of the echolocating bat, Eptesicus fuscus, in order to determine whether there are different classes ofExpand
On population encoding and decoding of auditory information for bat echolocation
A neural network-based algorithm is designed to reconstruct the IHC receptor potentials from the spiking activity of the synapting auditory neurons and it is shown how this approach allows to inspect which spectral features survive neural encoding and hence can be relevant for echolocation. Expand
Cochlear Physiology and Anatomy in Bats
The first steps in frequency analysis by the mammalian auditory system are performed in the cochlea, where hair cells are tuned to a restricted frequency range and the orderly pattern of frequency representation is laid out in the frequency place code along basilar membrane length. Expand


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The acoustic behavior of four species of Vespertilionid bats flying in the field was studied using high speed tape recorders and ultrasonic detectors, finding that three species show considerable flexibility in their acoustic behavior, while Myotis daubentoni has a stereotyped acoustic behavior under study conditions. Expand
Correlation between the hair cell density and the auditory threshold in the white rat
The density of cochlear inner hair cells in Wistar rats is greatest on a short section of the basilar membrane about a fifth of its length from the base. This place corresponds to the frequencyExpand