Journal ArticleDOI
Model for auditory localization
TLDR
Using a nonlinear regression program, the standard deviations of four of the auditory localization cues are estimated, allowing objective comparison of their relative accuracy.Abstract:
A mathematical model based on statistical decision theory has been devised to represent the human auditory localization task. The known localization cues have been represented as Gaussian random variables, so that their interaction in a given experiment can be analyzed (and predicted) along the lines of classical detection/estimation theory. We have applied this technique to most of the horizontal and vertical localization experiments reported in the literature during the past ten years, encompassing over 200 subjects and 20 000 trials. Using a nonlinear regression program we have been able to estimate the standard deviations of four of the auditory localization cues, allowing objective comparison of their relative accuracy. The resulting model provides a relatively good fit to the published results on 40 localization experiments.Subject Classification: [43]65.62, [43]65.58, [43]65.35.read more
Citations
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Journal ArticleDOI
Stochastic properties of auditory brainstem coincidence detectors in binaural perception.
Ram Krips,Miriam Furst +1 more
TL;DR: Using statistics derived from EE and EI spike trains, binaural discrimination abilities of single tones were predicted and it was concluded that ITD is primarily estimated by EE cells with AIN coding when the ipsilateral auditory input exhibits phase delay between 40 degrees and 65 degrees and in ILD, both AIN and rate coding provide identical performances.
Journal ArticleDOI
Masked threshold changes associated with angular separation of noise and signal sources.
J. M. Terhune,S. D. Turnbull +1 more
TL;DR: The absence of changes at low frequencies and the similarity in magnitude of the changes in signals containing high frequency components with the responses to the monaural click trains, suggests that the threshold changes can be attributed to a head shadow effect.
Journal ArticleDOI
Electrophysiologic correlates of direction and elevation cues for sound localization in the human brainstem.
Audrey Polyakov,Hillel Pratt +1 more
TL;DR: It is concluded that the changes in BIC equivalent dipole latency, amplitude and orientation across stimulus conditions reflect differences in the distribution of binaural pontine activity evoked by sounds in different spatial locations.
References
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Factors That Influence the Localization of Sound in the Vertical Plane
TL;DR: The ability of listeners to locate sound in the vertical plane was investigated and showed that for auditory stimuli to be located accurately, the stimulus must be complex, it must include frequencies above 7000 cps, and the pinna must be present.
Journal ArticleDOI
Problem of localization in the median plane: effect of pinnae cavity occlusion.
TL;DR: It is shown that localization ability decreases with increasing occlusion, that it is better for signals in the anterior than in the posterior sector of the median plane, and that high‐frequency signal content is more important than the low.
Journal ArticleDOI
Sound Pressure Generated in an External-Ear Replica and Real Human Ears by a Nearby Point Source
E. A. G. Shaw,R. Teranishi +1 more
TL;DR: A rubber replica has a pinna, concha, and auditory meatus with dimensions comparable with those of real human ears, and pressure distributions in the canal and concha are given for M1, M2, and three other modes.