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Localization of dichotically presented sounds in dogs

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Conclusions

  1. 1.

    Values of differential thresholds of sound lateralization were determined by means of an instrumental conditioned-reflex defensive method in two dogs for a wide-band signal (series of clicks) and for tonal volleys.

  2. 2.

    The lateralization threshold for the series of clicks was 55–60 μsec for time and 1.5–1.8 dB for intensity.

  3. 3.

    The values of the lateralization thresholds were found to depend on the frequency of the tonal stimulus.

  4. 4.

    Thresholds of lateralization of interaural difference for intensity decrease with an increase in frequency. For instance, with a change in frequency from 0.3 to 5 kHz the thresholds fell from 4.2–4.5 to 1.8–2 dB.

  5. 5.

    Thresholds of lateralization for time increase with an increase in frequency. At a frequency of 0.3 kHz they are 100 μsec, at a frequency of 1 kHz 165–175 μsec, and above 1.5 kHz discrimination of lateralization of the confluent acoustic pattern with respect to this feature is impossible.

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Authors and Affiliations

  1. Laboratory of Physiology of Hearing, I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad

    I. V. Kalmykova

Authors
  1. I. V. Kalmykova
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Translated from Zhurnal Vysshei Nervnoi Deyatel'nosti, Vol. 29, No. 4, pp. 692–697, July–August, 1979.

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Kalmykova, I.V. Localization of dichotically presented sounds in dogs. Neurosci Behav Physiol 11, 268–272 (1981). https://doi.org/10.1007/BF01184421

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  • DOI: https://doi.org/10.1007/BF01184421

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