Subject: Re: harmonic vs. inharmonic sounds (one last time) From: Martin Braun <nombraun@xxxxxxxx> Date: Sat, 17 Mar 2007 18:26:41 +0100 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Dear Erik and others, Erik Larsen asked: "without having read the papers, I wonder how you can conclude that pitch shift induced by a drug rules out _any_ pitch extraction mechanism." 1) The interval of the pitch shift caused by carbamazepine increases with frequency. This is documented minutely over the range of six octaves. The details are such that they are not compatible with any imaginable concept of pitch extraction via a ' "harmonic sieve" or template '. 2) The drug changes neural activity in the CNS, but it is unable to rewire neural interconnectivity within the few hours between drug taking and full effect of the pitch shift. Thus it is unable to change tonotopic order of any kind anywhere in the brain. Martin --------------------------------------------------------------------- Martin Braun Neuroscience of Music S-671 95 Klässbol Sweden web site: http://w1.570.telia.com/~u57011259/index.htm