[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Pitch orientation-discriminating feature detectors?
The oldest work, based on my recollection, is likely to be
who I think were the first to report FM sensitivity in auditory
- Whitfield, I. C. a. E., E.F. (1965). Responses of auditory cortical
neurones to stimuli of changing frequency. Journal of Neurophysiology,
More complex cells with direction selectivity across several tones have
also been reported by Weinberger in several papers (sorry, I don't have
the references handy)
Behaviorally, Peretz describes one person with congenital amusia who has
a much higher threshold for descending than for ascending musical
and finally, in our own lab, we've documented that certain specific
auditory cortex lesions lead to an increased threshold for determining
the direction of pitch change, but not for making a same/different
- Peretz, I., Ayotte, J., Zatorre, R.J., Mehler, J., Ahad, P., Penhune,
V.B., and Jutras, B. (2002) Congenital amusia: A disorder of fine-grained
pitch discrimination. Neuron, 33, 185-191.
all of which would tend to suggest that pitch directionality is
relevant, to say the least.
- Johnsrude, I.J., Penhune, V.B., and Zatorre, R.J. (2000) Functional
specificity in right human auditory cortex for perceiving pitch
direction. Brain, 123, 155-163.
At 23:00 16/09/02 -0400, you wrote:
Do we happen to know of anything indicating the existence of
pitch-orientation selective cells in any species, eg
responding specifically to, say, upward moving pitch, rather than
A further question: do we happen to know whether pitch difference
sensitivity responds to orientation of movement?
Many thanks for any pointers.
Eliot Handelman PhD
Please use new e-mail address from now on:
Robert J. Zatorre, Ph.D.
Montreal Neurological Institute
3801 University St.
Montreal, QC Canada H3A 2B4