cortical plasticity induced by short-term multimodal musical rhythm training皮层可塑性引起短期multimodal音乐节奏训练.pdf

Cortical Plasticity Induced by Short-Term Multimodal Musical Rhythm Training 1 2 1,3 1 Claudia Lappe , Laurel J. Trainor , Sibylle C. Herholz , Christo Pantev * ¨ 1 Institute for Biomagnetism and Biosignalanalysis, University of Muenster, Munster, Germany, 2 Department of Psychology, Neuroscience Behaviour and the McMaster Institute for Music and the Mind, McMaster University, Hamilton, Canada, 3 Montreal Neurological Institute, McGill University, Montreal, Canada Abstract Performing music is a multimodal experience involving the visual, auditory, and somatosensory modalities as well as the motor system. Therefore, musical training is an excellent model to study multimodal brain plasticity. Indeed, we have previously shown that short-term piano practice increase the magnetoencephalographic (MEG) response to melodic material in novice players. Here we investigate the impact of piano training using a rhythmic-focused exercise on responses to rhythmic musical material. Musical training with non musicians was conducted over a period of two weeks. One group (sensorimotor-auditory, SA) learned to play a piano sequence with a distinct musical rhythm, another group (auditory, A) listened to, and evaluated the rhythmic accuracy of the performances of the SA-group. Training-induced cortical plasticity was evaluated using MEG, comparing the mismatch negativity (MMN) in response to occasional rhythmic deviants in a repeating rhythm pattern before and after training. The SA-group showed a significantly greater enlargement of MMN and P2 to deviants after training compared to the A- group. The training-induced increase of the