期刊
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
卷 127, 期 6, 页码 3837-3845出版社
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.3372717
关键词
bioacoustics; hearing; mechanoception
资金
- NIH [R01 DC02960]
The authors determined the ability of two old-world non-echolocating bats, Eidolon helvum and Cynopterus brachyotis, to use binaural time and intensity difference cues for localization. The bats were trained to localize pure tones throughout most of their hearing range from loudspeakers located 30 degrees to the left and right of midline. Both species easily localized high frequency tones, indicating they could use the interaural intensity difference cue. However, neither was able to localize low frequency tones even when the tones were amplitude modulated thereby indicating that they could not use ongoing phase difference cues. The authors now know of eight mammals that do not use binaural phase cues for localization, and some possible reasons for this inability are explored. (C) 2010 Acoustical Society of America. [DOI: 10.1121/1.3372717]
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