DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
Monaural and Binaural Processing of Complex Waveforms
Final rept. 1 Nov 1988-31 Oct 1991
CONNECTICUT UNIV HEALTH CENTER FARMINGTON
Pagination or Media Count:
Our research concerned the manners by which the monaural and binaural auditory systems tial progress was made consistent with the objectives process information in complex sounds. SubStan outlined in the original proposal in three areas 1 New electronic equipment, including a NeXT computer was purchased, installed and interfaced with the existing laboratory. Software was developed for generating the necessary complex digital stimuli and for running behavioral experiments utilizing those stimuli. 2 Monaural experiments showed that the CMR is not obtained successively and is reduced or non-existent when the flanking bands are pulsed rather than presented continuously. Binaural investigations revealed that the detectability of a tonal target in a masking level difference paradigm could be degraded by the presence of a spectrally remote interfering tone. 3 In collaboration with Dr. Richard Stem, theoretical efforts included the explication and evaluation of a weighted-image model of binaural hearing, attempts to extend the Stern-Colbum position-variable model to account for many crucial lateralization and localization data gathered over the past 50 years and the continuation of efforts to incorporate into a general model notions that lateralization and localization of spectrally-rich stimuli depends upon the patterns of neural activity within a plane defined by frequency and interaural delay.
APPROVED FOR PUBLIC RELEASE