Low-Frequency Phase Sensitivity in the Auditory System of a Dolphin
It has been shown that a human listener can discriminate click-pairs of different order of the two clicks of unequal amplitude. Ronken (1970) utilized the fact that the power spectrum of a transient is unaffected by reversal of the time scale for producing different stimuli with identical energy spectra. Listeners discriminated such “mirror-image” signals with spectra that differ only in phase at interpulse intervals greater than 1 to 2 ms.
KeywordsEnergy Spectrum Opposite Polarity Bottlenose Dolphin Polarity Spectrum Interpulse Interval
Unable to display preview. Download preview PDF.
- Dubrovsky, N. A., Krasnov, P. S., and Titov, A. A., 1978, Auditory discrimination of acoustic stimuli with different phase structures in a bottlenose dolphin (in Russ.), in: “Morskiye Mlekopitayishiye” (“Marine Mammals”), Moscow, pp.114–115.Google Scholar
- Johnson, R. A., Moore, P. W. B., Stroermer, M. W., Pawlosky, J. L., and Anderson, L. C., 1988, Temporal order discrimination within the dolphin critical interval, in: “Animal Sonar. Processes and Performance”, P. E. Nachtigall and P. W. B. Moore, eds., Plenum Press, N.Y., pp. 317–321.CrossRefGoogle Scholar