Behavioural studies demonstrate that rhythm and pitch can be perceived separately,[27] but that they also interact[28] in creating a musical perception. Studies of auditory rhythm discrimination and reproduction in patients with brain injury have linked these functions to the auditory regions of the temporal lobe, but have shown no consistent localization or lateralization.[29][30][31] Neuropsychological and neuroimaging studies have shown that the motor regions of the brain contribute to both perception and production of rhythms.[32]