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  Intracortical myelination in musicians with absolute pitch: Quantitative morphometry using 7-T MRI

Kim, S.-G., & Knösche, T. R. (2016). Intracortical myelination in musicians with absolute pitch: Quantitative morphometry using 7-T MRI. Human Brain Mapping, 37(10), 3486-3501. doi:10.1002/hbm.23254.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-5DCB-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-1102-7
Genre: Journal Article

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 Creators:
Kim, Seung-Goo1, Author              
Knösche, Thomas R.1, Author              
Affiliations:
1Methods and Development Group MEG and EEG - Cortical Networks and Cognitive Functions, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_2205650              

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Free keywords: Relaxometry; Planum polare; Myeloarchitecture; Pitch chroma; Frequency discrimination; Ultra-high field magnetic resonance imaging
 Abstract: Absolute pitch (AP) is known as the ability to recognize and label the pitch chroma of a given tone without external reference. Known brain structures and functions related to AP are mainly of macroscopic aspects. To shed light on the underlying neural mechanism of AP, we investigated the intracortical myeloarchitecture in musicians with and without AP using the quantitative mapping of the longitudinal relaxation rates with ultra-high-field magnetic resonance imaging at 7 T. We found greater intracortical myelination for AP musicians in the anterior region of the supratemporal plane, particularly the medial region of the right planum polare (PP). In the same region of the right PP, we also found a positive correlation with a behavioral index of AP performance. In addition, we found a positive correlation with a frequency discrimination threshold in the anterolateral Heschl's gyrus in the right hemisphere, demonstrating distinctive neural processes of absolute recognition and relative discrimination of pitch. Regarding possible effects of local myelination in the cortex and the known importance of the anterior superior temporal gyrus/sulcus for the identification of auditory objects, we argue that pitch chroma may be processed as an identifiable object property in AP musicians

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Language(s): eng - English
 Dates: 2016-04-262016-01-082016-04-272016-05-102016-10
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1002/hbm.23254
PMID: 27160707
PMC: PMC5084814
Other: Epub 2016
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Title: Human Brain Mapping
Source Genre: Journal
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Publ. Info: New York : Wiley-Liss
Pages: - Volume / Issue: 37 (10) Sequence Number: - Start / End Page: 3486 - 3501 Identifier: ISSN: 1065-9471
CoNE: https://pure.mpg.de/cone/journals/resource/954925601686