Bimodal listeners are not sensitive to interaural time differences in unmodulated low-frequency stimuli (L)
نویسندگان
چکیده
منابع مشابه
Tuning to interaural time differences across frequency.
Interaural time differences (ITDs) are an important cue for azimuthal sound localization. Sensitivity to this cue depends on temporal synchrony to the waveform (i.e., phase locking) that begins in the hair cells and is relayed to the neural comparators. The synchrony function is low-pass. Therefore, it is expected that neural tuning to ITDs will become narrower with frequency according to a 1/f...
متن کاملFrequency-Invariant Representation of Interaural Time Differences in Mammals
Interaural time differences (ITDs) are the major cue for localizing low-frequency sounds. The activity of neuronal populations in the brainstem encodes ITDs with an exquisite temporal acuity of about 10 μs. The response of single neurons, however, also changes with other stimulus properties like the spectral composition of sound. The influence of stimulus frequency is very different across neur...
متن کاملFrequency-following response: effects of interaural time and intensity differences.
This research investigated whether brainstem neural mechanisms that mediate lateralization of sounds can be extracted from the frequency-following response (FFR). Monaural and binaural FFRs were obtained from normal-hearing subjects to low-frequency (500 Hz) linearly gated tone bursts (4-4-4 msec) at 40, 50, and 60 dB SL and four interaural time differences (ITDs) (0, 333, 500, and 667 microsec...
متن کاملLateralization of Sounds Based on Interaural Time Differences in Cochlear Implant Listeners
Interaural time differences (ITD) occur when a binaural signal is delayed at one ear. They arise when a sound is presented outside of the median plane of a subject. In modulated sounds like speech, ITD is present in both the rapidly varying fine structure and the slowly varying envelope. There is evidence that ITD in the fine structure of a sound is most important for sound localization and for...
متن کاملAcross-frequency combination of interaural time difference in bilateral cochlear implant listeners
The current study examined how cochlear implant (CI) listeners combine temporally interleaved envelope-ITD information across two sites of stimulation. When two cochlear sites jointly transmit ITD information, one possibility is that CI listeners can extract the most reliable ITD cues available. As a result, ITD sensitivity would be sustained or enhanced compared to single-site stimulation. Alt...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2011
ISSN: 0001-4966
DOI: 10.1121/1.3557051