PHYSIOLOGICAL IMPLICATIONS OF PSYCHOPHYSICAL DATA*

Physiological implications of psychophysical data.

Bilateral Cochlear Implants : Physiological and Psychophysical Studies

The long-term goal of this project is to understand the neural mechanisms that mediate the ability of normal-hearing people to understand speech and localize sounds in complex acoustic environments comprising reverberation and competing sound sources. In the past year, we focused on two research projects: (1) Physiological and psychophysical studies of sound localization in reverberant environm...

Detection and Discrimination of Colour, a Comparison of Physiological and Psychophysical Data

Whereas the physiological basis of colorimetry (colour matches) is well understood in terms of the trireceptor theory of colour vision, colour discrimination and scaling still lack a comparable foundation. We present here experimental data that demonstrate how sensitivity and responsiveness of different types of cone-opponent and non-opponent cells of the macaque monkey correlate with human thr...

Psychophysical and Physiological Studies of the Precedence Effect in Cats

The precedence effect (PE) is an auditory spatial illusion where the apparent location of two sounds presented from different spatial locations but separated by a delay is determined primarily by the spatial attributes of the leading stimulus. In this review, we compare previously published psychophysical and physiological experiments on the PE in cats. Also included are data from some new psyc...

Modeling Physiological and Psychophysical Responses to Precedence Effect Stimuli

Many perceptual and physiological studies of sound localization have explored the precedence effect (PE), whereby a pair of brief sounds coming from different directions and arriving at the ears close together in time is perceived as coming from a location near that of the first-arriving sound. Here, we used a computational model of low-frequency inferior colliculus (IC) neurons to account for ...