Abstract
Lateralization thresholds were measured in a 2IFC task for two conditions. The 400-ms signal consisted of two high-frequency narrow bands of noise with common interaural delays (cf.=2.55 and 3.35 kHz; bandwidths=50,100,200,400 Hz). In the first condition, the temporal envelopes of the two bands were the same (comodulated) and, in the second condition, they were independent. Results of this experiment showed improvements in lateralization when the bands were comodulated compared to independently modulated bands. In a second experiment, the two noise bands were replaced by two sinusoidally amplitude modulated (SAM) tones (cf.=2.55 and 4 kHz; modulation rate=100 Hz) and lateralization thresholds were measured as a function of the relative phase of modulation between the two SAMs. Thresholds were lowest when the envelope of the two SAMs were in phase and monotonically increased as the envelopes were increasingly shifted out of phase up to 180°. In a third experiment, binaural interference was examined. Results are discussed in terms of cross-correlation models of binaural hearing. [Work supported by NIH and AFOSR.]
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
