Frequency-specific, location-nonspecific adaptation of interaural time difference sensitivity

Andrew D. Brown, Marina S. Kuznetsova, William J. Spain, G. Christopher Stecker

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Human listeners' sensitivity to interaural time differences (ITD) was assessed for 1000 Hz tone bursts (500 ms duration) preceded by trains of 500-ms "adapter" tone bursts (7 s total adapter duration, frequencies of 200, 665, 1000, or 1400 Hz) carrying random ITD, or by an equal-duration period of silence. Presentation of the adapter burst train reduced ITD sensitivity in a frequency-specific manner. The observed effect differs from previously described forms of location- specific psychophysical adaptation, as it was produced using a binaurally diffuse sequence of tone bursts (i.e., a location- nonspecific adapter stimulus). Results are discussed in the context of pre-binaural adaptation.

Original languageEnglish (US)
Pages (from-to)52-56
Number of pages5
JournalHearing Research
Issue number1-2
StatePublished - Sep 2012
Externally publishedYes

ASJC Scopus subject areas

  • Sensory Systems

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