tuned neural resonance (Martin Braun )

Subject: tuned neural resonance
From:    Martin Braun  <nombraun(at)POST.NETLINK.SE>
Date:    Wed, 25 Oct 2000 12:18:26 +0200

Peter Cariani wrote: "........we need something more like an autocorrelator rather than an envelope or MTF-based analyzer. This would mean either comb filter rate tunings or all-order intervals. All-order intervals related to pitch are everywhere, and comb filter rate tunings are almost nowhere to be found." Answer: I assume that "comb filter rate tunings" were intended to mean frequency selectivity by tuned neural resonance. If this is true, Peter's "almost" = can be made a bit clearer. There are three important papers on this issue. One paper indicates by the single neuron data that the filtering of modulation frequency is effected by intrinsic neural tuning. Langner, G., Schreiner, C.E. and Merzenich, M.M. (1987) Covariation = of latency and temporal resolution in the inferior colliculus of the cat. He= ar. Res. 31, 197-201. Two papers show by the single neuron data that intrinsically tuned neuron= s exist in the midbrain of birds and mammals, whose equivalents in humans would cover the complete f0 range of speech. Schwarz, D.W.F., Dezs=F6, A. and Neufeld, P.R. (1993) Frequency selectivity of central auditory neurons without inner ear. Acta Otolaryng= ol. (Stockh.) 113, 266-270. Rees, A. and Sarbaz, A. (1997) The influence of intrinsic oscillatio= ns on the encoding of amplitude modulation by neurons in the inferior colliculus. In: J. Syka (Ed.), Acoustic Signal Processing in the Central Auditory System, Plenum Press, New York, pp. 239-252. The main results of these papers concerning tuned neural resonance are al= so reviewed in detail in Braun (1999), see ref. in letter to list on Oct. 21. Martin Martin Braun Neuroscience of Music Gansbyn 14 S-671 95 Kl=E4ssbol Sweden nombraun(at)post.netlink.se

This message came from the mail archive
maintained by:
DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University