Last Updated: 20060803, mei
Thursday, October 5, 9:00 am — 11:00 am
T2 - PSYCHOPHYSICS AND PHYSIOLOGY OF HEARING
Poppy Crum, Johns Hopkins University School of Medicine - Baltimore, MD, USA
This tutorial presents psychoacoustical phenomena from a physiological perspective. What we hear for a given acoustic signal is often not easily predicted without considering nonlinear transformations occurring at subsequent stages of the ear and brain. Psychoacoustical studies elucidate this relationship and offer mapping functions that better enable prediction from the acoustic source to the perceptual experience. In this tutorial we will discuss many such phenomena as they occur in natural hearing and consider current understandings of physiology that may lead to a particular perceptual outcome. Initial emphasis will be on how the ear (outer, middle, and inner) processes a simple sound with a focus on the physiology of the inner ear. From here we will consider psychoacoustic phenomena associated with perceptual experiences such as loudness, masking, scene analysis, and spatial localization.