TY - JOUR T1 - Neural Encoding of Auditory Features during Music Perception and Imagery: Insight into the Brain of a Piano Player <em>Auditory Features and Music Imagery</em> JF - bioRxiv DO - 10.1101/106617 SP - 106617 AU - Stephanie Martin AU - Christian Mikutta AU - Matthew K. Leonard AU - Dylan Hungate AU - Stefan Koelsch AU - Edward F. Chang AU - José del R. Millán AU - Robert T. Knight AU - Brian N. Pasley Y1 - 2017/01/01 UR - http://biorxiv.org/content/early/2017/02/07/106617.abstract N2 - It remains unclear how the human cortex represents spectrotemporal sound features during auditory imagery, and how this representation compares to auditory perception. To assess this, we recorded electrocorticographic signals from an epileptic patient with proficient music ability in two conditions. First, the participant played two piano pieces on an electronic piano with the sound volume of the digital keyboard on. Second, the participant replayed the same piano pieces, but without auditory feedback, and the participant was asked to imagine hearing the music in his mind. In both conditions, the sound output of the keyboard was recorded, thus allowing precise time-locking between the neural activity and the spectrotemporal content of the music imagery. For both conditions, we built encoding models to predict high gamma neural activity (70-150Hz) from the spectrogram representation of the recorded sound. We found robust similarities between perception and imagery – in frequency and temporal tuning properties in auditory areas.ECoGelectrocorticographyHGhigh gammaIFGinferior frontal gyrusMTGmiddle temporal gyrusPost-CGpost-central gyrusPre-CGpre-central gyrusSMGsupramarginal gyrusSTGsuperior temporal gyrusSTRFspectrotemporal receptive field ER -