Activité musculaire oro-faciale durant les hallucinations auditives verbales et durant la parole intérieure : liens avec un modèle de contrôle moteur de la parole
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25 mai 2011
- handle: 10670/1.6zysr2
- hal: hal-00613903
info:eu-repo/semantics/OpenAccess
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Auditory Verbal Hallucinations schizophrenia inner speech internal models electromyographyCiter ce document
Lucile Rapin et al., « Activité musculaire oro-faciale durant les hallucinations auditives verbales et durant la parole intérieure : liens avec un modèle de contrôle moteur de la parole », HAL-SHS : linguistique, ID : 10670/1.6zysr2
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Auditory verbal hallucinations (AVHs) are speech perceptions in the absence of pertinent external stimuli. Some theories explain AVHs as a distortion in the production of inner speech in a way that the verbal thoughts of the patient are perceived as external voices. These theories can be implemented in the context of a speech motor control model. In order to examine the motor aspect of these models, the present study aimed at collecting orofacial muscle activity traces during AVHs. Surface electromyography (sEMG) was used on schizophrenia patients and control subjects. Our results show an increase in muscular activity in the orbicularis oris muscles during AVHs for patients and a trend towards an increase during inner speech for controls, compared to rest.