fMRI investigation of unexpected somatosensory feedback perturbation during speech

► fMRI and neural modeling study of speech somatosensory feedback control network. ► Pneumatic device induced unanticipated somatosensory perturbation during speech. ► Evidence for somatosensory error processing in bilateral supramarginal gyrus. ► SEM revealed greater parieto-frontal coupling when speech is perturbed. ► Implications of right-lateralized vPMC to feedback-based speech control discussed.