Wu Carolyn, Kirk Ian J, Hamm Jeff P, Lim Vanessa K
Department of Psychology, Research Centre for Cognitive Neuroscience (RCCN), University of Auckland, Auckland, New Zealand.
Neuroreport. 2008 May 28;19(8):851-4. doi: 10.1097/WNR.0b013e3282ff63b1.
Investigating the neural substrates of auditory processing of absolute pitch musicians has relevance for understanding the capabilities of the human brain for plasticity. Electroencephalography was used to examine the N1 of auditory-evoked potentials from absolute pitch musicians, nonabsolute pitch musicians, and nonmusicians during tone labeling tasks with and without presentation of a reference tone. Source localization using low-resolution electromagnetic tomography revealed that when labeling tones without a reference, absolute pitch musicians generated greater activity than nonabsolute pitch musicians in the left and right hemispheres. This suggests that when required to label tones without an external reference, absolute pitch musicians have the ability to recruit a greater network than nonabsolute pitch musicians or nonmusicians.
研究绝对音高音乐家听觉处理的神经基础对于理解人类大脑的可塑性能力具有重要意义。在有和没有呈现参考音的音调标记任务中，使用脑电图来检查绝对音高音乐家、非绝对音高音乐家和非音乐家的听觉诱发电位的N1。使用低分辨率电磁断层扫描进行源定位显示，在没有参考音的情况下标记音调时，绝对音高音乐家在左右半球产生的活动比非绝对音高音乐家更强。这表明，在需要在没有外部参考的情况下标记音调时，绝对音高音乐家比非绝对音高音乐家或非音乐家有能力调动更大的神经网络。
