Development of the Auditory System

Mechanisms of sound localization 1. timing differences--onset and phase

Mechanisms of sound localization 1. timing differences--onset and phase 2. intensity differences

Mechanisms of sound localization 1. timing differences--onset and phase 2. intensity differences 3. spectral properties

4. monaural evaluation of spectral and intensity cues with scanning Mechanisms of sound localization 1. timing differences--onset and phase 2. intensity differences 3. spectral properties All are used for best estimate of location

4. monaural evaluation of spectral and intensity cues with scanning Mechanisms of sound localization 1. timing differences--onset and phase 2. intensity differences 3. spectral properties All are used for best estimate of location

Knudsen, E.I. (1984) Trends Neurosci., 7, Y-cords No aids

Knudsen, E.I. (1984) Trends Neurosci., 7,

Knudsen, E.I. & Knudsen, P.F. (1985) Science, 230,

Knudsen, E.I. & Knudsen, P.F. (1985) Science, 230,

Knudsen, E.I. & Knudsen, P. F. (1986) J. Neurosci., 7,

Critical Periods? Up to 70 days Up to 200 days Up to 200 days Open ended Small individual cages Large group aviary Prism introduced Prism removed Adapted from: Brainard, M.S. & Knudsen, E.I. (1998) J. Neurosci., 18,