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Re: Pitch orientation-discriminating feature detectors?

I recently heard a talk by Shihab Shamma on the work his lab at the
University of Maryland has been doing with ferrets. They found
primary auditory cortex cells with preferential response to various
frequency change rates and directions, and various bandwidths. The
abstract is here:


And a technical report is here:


Hope that helps,
-Bret Aarden.

Dear list,

Do we happen to know of anything indicating the existence of
pitch-orientation selective cells in any species, eg cell-assemblies
responding specifically to, say, upward moving pitch, rather than
downward movement?

A further question: do we happen to know whether pitch difference
sensitivity responds to orientation of movement?

Many thanks for any pointers.

-- eliot

Eliot Handelman PhD
Montreal, Canada

Bret Aarden        1500 E 4th St, Dayton, OH 45403      Home: 614/361-8628
Graduate Student, School of Music, Ohio State University, Columbus, OH
Cognitive and Systematic Musicology Laboratory           Lab: 614/292-7321