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Auditory T-Complex Reveals Reduced Neural Activities in the Right Auditory Cortex in Musicians With Absolute Pitch
http://hdl.handle.net/10191/00051817
http://hdl.handle.net/10191/00051817cb424473-48fb-4058-975b-b73264f6f620
名前 / ファイル | ライセンス | アクション |
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要旨 (574.4 kB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2020-08-31 | |||||
タイトル | ||||||
タイトル | Auditory T-Complex Reveals Reduced Neural Activities in the Right Auditory Cortex in Musicians With Absolute Pitch | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | music training | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | language | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | auditory evoked cortical potentials | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | brain maturation and development | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | balanced non-cephalic electrode | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_46ec | |||||
タイプ | thesis | |||||
その他のタイトル | ||||||
その他のタイトル | 絶対音感保持者における右聴覚野の神経活動の減弱 : 聴覚誘発電位T-complexを用いた検討 | |||||
著者 |
Matsuda, Masato
× Matsuda, Masato |
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著者別名 | ||||||
識別子 | 178038 | |||||
識別子Scheme | WEKO | |||||
姓名 | 松田, 将門 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Absolute pitch (AP) is the ability to identify the pitch names of arbitrary musical tones without being given a reference pitch. The acquisition of AP typically requires early musical training, the critical time window for which is similar to that for the acquisition of a first language. This study investigated the left–right asymmetry of the auditory cortical functions responsible for AP by focusing on the T-complex of auditory evoked potentials (AEPs), which shows morphological changes during the critical period for language acquisition. AEPs evoked by a pure-tone stimulus were recorded in high-AP musicians, low-AP musicians, and non-musicians (n = 19 each). A balanced non-cephalic electrode (BNE) reference was used to examine the left–right asymmetry of the N1a and N1ccomponents of the T-complex. As a result, a left-dominant N1c was observed only in the high-AP musician group, indicating “AP negativity,” which has previously been described as an electrophysiological marker of AP. Notably, this hemispheric asymmetry was due to a diminution of the right N1c rather than enhancement of the left N1c. A left-dominant N1a was found in both musician groups, irrespective of AP. N1c and N1a exhibited no left–right asymmetry in non-musicians. Hence, music training and the acquisition of AP are both accompanied by a left-dominant hemispheric specialization of auditory cortical functions, as indexed by N1a and N1c, respectively, but the N1c asymmetry in AP possessors was due to reduced neural activities in the right hemisphere. The use of a BNE is recommended for evaluating these radially oriented components of the T-complex. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Frontiers in Neuroscience. 2019, 13, 809. | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.3389/fnins.2019.00809 | |||||
著者版フラグ | ||||||
値 | ETD | |||||
学位名 | ||||||
学位名 | 博士(医学) | |||||
学位授与機関 | ||||||
学位授与機関名 | 新潟大学 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2020-03-23 | |||||
学位授与番号 | ||||||
学位授与番号 | 13101甲第4694号 | |||||
学位記番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 新大院博(医)甲第928号 |