Subject: Re: Neural mechanisms of octave equivalence From: Martin Braun <mb@xxxxxxxx> Date: Mon, 26 Sep 2016 13:51:13 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Thanks to Ian Cross for pointing to this paper. It is freely available: http://www.ncbi.nlm.nih.gov/pubmed/25479020 The preceding paper of this group is also recommended (also free): http://www.ncbi.nlm.nih.gov/pubmed/23864678 It should be noted that neither of these papers mentions the auditory thalamus. But the authors several times pointed out that their "results showed octave-tuned locations throughout the supra-temporal plane". This clearly indicates that chroma tuning does not occur de novo in the auditory cortex. It is consistent with all earlier data suggesting that chroma tuning has its basis in the anatomy of the auditory thalamus. Papers of special interest in this respect are: Brosch M., Schulz A., Scheich H., 1999. Processing of sound sequences in macaque auditory cortex: response enhancement. J Neurophysiol 82, 1542–1559. Brosch M., Schreiner C.E., 2000. Sequence sensitivity of neurons in cat primary auditory cortex. Cereb Cortex 10, 1155–1167. as presented in: http://www.neuroscience-of-music.se/Octave-History.htm Best wishes, Martin --------------------------------- Martin Braun Neuroscience of Music S-66492 Värmskog Sweden http://www.neuroscience-of-music.se/index.htm mb@xxxxxxxx From: Ian Cross Sent: Saturday, September 24, 2016 11:45 AM To: AUDITORY@xxxxxxxx Subject: Re: Neural mechanisms of octave equivalence Hi, Ani: A paper that you might find of interest is Moerel, M., De Martino, F., Santoro, R., Yacoub, E., & Formisano, E. (2015). Representation of pitch chroma by multi-peak spectral tuning in human auditory cortex. NeuroImage, 106(0), 161-169.