Increased volume and function of right auditory cortex as a marker for absolute pitch.

Increased volume and function of right auditory cortex as a marker for absolute pitch.
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右听觉皮层的体积和功能增加作为绝对音高的标记

DOI:
10.1093/cercor/bhs391
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Schneider P
Schneider P
中科院分区:
医学2区
文献类型:
--
作者:
Wengenroth M;Blatow M;Heinecke A;Reinhardt J;Stippich C;Hofmann E;Schneider P

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绝对音高知觉是一种在没有外部参照的情况下毫不费力地识别任何给定音调音高的听觉能力。为了研究这种罕见现象的神经基板,我们开发了一种新的行为测试,它不包括基于记忆的间隔识别,并允许独立于相对音高线索的AP熟练程度的量化。AP和非AP拥有音乐家进行了研究,形态和功能磁共振成像(fMRI)和脑磁图。右侧Heschl's gyrus(HG)的灰质体积与AP熟练程度高度相关。右半球听觉诱发场在AP组增加。功能磁共振成像揭示了一个AP依赖的网络的右颞平面,次级躯体感觉,和运动前皮质,以及左半球的“布罗卡”区。我们提出了正确的HG作为AP的解剖标记,并建议右半球网络介导AP的“感知”,而音高“标签”发生在左半球。
Absolute pitch (AP) perception is the auditory ability to effortlessly recognize the pitch of any given tone without external reference. To study the neural substrates of this rare phenomenon, we developed a novel behavioral test, which excludes memory-based interval recognition and permits quantification of AP proficiency independently of relative pitch cues. AP- and non-AP-possessing musicians were studied with morphological and functional magnetic resonance imaging (fMRI) and magnetoencephalography. Gray matter volume of the right Heschl's gyrus (HG) was highly correlated with AP proficiency. Right-hemispheric auditory evoked fields were increased in the AP group. fMRI revealed an AP-dependent network of right planum temporale, secondary somatosensory, and premotor cortices, as well as left-hemispheric “Broca's” area. We propose the right HG as an anatomical marker of AP and suggest that a right-hemispheric network mediates AP “perception,” whereas pitch “labeling” takes place in the left hemisphere.
左赫舍尔回的体积和语言音高学习。
DOI: 10.1093/cercor/bhm115
发表时间: 2008
期刊: Cerebral cortex (New York, N.Y. : 1991)
影响因子: --
作者:
Wong,PatrickCM;Warrier,CatherineM;Penhune,VirginiaB;Roy,AnilK;Sadehh,Abdulmalek;Parrish,ToddB;Zatorre,RobertJ
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期刊: Journal of biology
影响因子: --
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DOI: --
发表时间: 1989
期刊: Cortex
影响因子: 3.6
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DOI: --
发表时间: 2009
影响因子: 9.8
作者:
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