Somatotopie motrice des articulateurs supralaryngés de la parole.
Résumé
In order to localize cerebral regions involved in articulatory control, ten participants were examined using functional magnetic resonance imaging while executing lip, tongue and jaw movements. Although the three motor tasks activated a set of common brain areas classically involved in motor control, distinct movement representation sites were nevertheless found in the primary motor cortex. These results support and extend previous brain imaging studies by demonstrating a sequential dorso-ventral somatotopic organization of lips, jaw and tongue in the motor cortex.