講演抄録/キーワード |
講演名 |
2009-03-12 10:50
Harmonic relations in modulatory peaks of auditory neurons emerge from a frequency-domain sparse code of harmonic sounds ○Hiroki Terashima・Haruo Hosoya(Univ. of Tokyo) NC2008-128 |
抄録 |
(和) |
Recent studies have shown that basic properties of auditory system can be accounted for by sparse coding or Independent Component Analysis (ICA) for natural sounds. Meanwhile, Kadia and Wang have reported that harmonic relations appear in frequencies of modulatory peaks of neurons in primary auditory cortex of awake primates, using pure- and two-tone paradigm. This study shows that the complex harmonic relations emerge from a frequency-domain sparse code of highly harmonic sound, piano performance. The result implies that brain conforms, across various stages of sensory information processing, to information theoretic principle. |
(英) |
Recent studies have shown that basic properties of auditory system can be accounted for by sparse coding or Independent Component Analysis (ICA) for natural sounds. Meanwhile, Kadia and Wang have reported that harmonic relations appear in frequencies of modulatory peaks of neurons in primary auditory cortex of awake primates, using pure- and two-tone paradigm. This study shows that the complex harmonic relations emerge from a frequency-domain sparse code of highly harmonic sound, piano performance. The result implies that brain conforms, across various stages of sensory information processing, to information theoretic principle. |
キーワード |
(和) |
/ / / / / / / |
(英) |
sparse coding / primary auditory cortex / harmony / two-tone paradigm / feature extraction / / / |
文献情報 |
信学技報, vol. 108, no. 480, NC2008-128, pp. 147-152, 2009年3月. |
資料番号 |
NC2008-128 |
発行日 |
2009-03-04 (NC) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
NC2008-128 |