Abstract：
Alterations of auditory feedback during piano performance can be profoundly disruptive. Furthermore, different alterations can yield different types of disruptive effects. Whereas alterations of feedback synchrony disrupt performed timing, alterations of feedback pitch contents can disrupt accuracy. The current research tested whether these behavioral dissociations correlate with differences in brain activity. Twenty pianists performed simple piano keyboard melodies while being scanned in a 3-T magnetic resonance imaging (MRI) scanner. In different conditions they experienced normal auditory feedback, altered auditory feedback (asynchronous delays or altered pitches), or control conditions that excluded movement or sound. Behavioral results replicated past findings. Neuroimaging data suggested that asynchronous delays led to increased activity in Broca\'s area and its right homologue, whereas disruptive alterations of pitch elevated activations in the cerebellum, area Spt, inferior parietal lobule, and the anterior cingulate cortex. Both disruptive conditions increased activations in the supplementary motor area. These results provide the first evidence of neural responses associated with perception/action mismatch during keyboard production.
摘要：
钢琴演奏过程中听觉反馈的改变可能具有深远的破坏性。此外，不同的改变会产生不同类型的破坏性影响。而反馈同步的改变会破坏执行的定时，反馈音高内容的改变会破坏准确性。目前的研究测试了这些行为分离是否与大脑活动的差异相关。二十位钢琴家在3-T磁共振成像（MRI）扫描仪中扫描时演奏了简单的钢琴键盘旋律。在不同的条件下，他们经历了正常的听觉反馈，改变的听觉反馈（异步延迟或改变的音高），或排除运动或声音的控制条件。行为结果复制了过去的发现。神经影像学数据表明，异步延迟导致Broca区域及其正确同源物的活动增加，而音调的破坏性改变提高了小脑的激活，面积Spt,下顶叶小叶，和前扣带皮质。两种破坏性条件都增加了辅助运动区域的激活。这些结果提供了在键盘生产期间与感知/动作不匹配相关的神经响应的第一证据。
