The Effect of an Auditory Rhythmic Cue on the Frequency of Rolling in Patients with Dysphagia and Parkinson's Disease

The main objective of this clinical study is to measure the effect of rhythmic auditory cueing, introduced in rehabilitation with three weekly sessions over a period of 7 weeks, on the frequency of rolling in idiopathic Parkinson's disease patients using pharyngography (swallowing radiography). The primary question of this study is: Does the rhythmic cueing introduced in rehabilitation significantly reduce the frequency of rolling in dysphagic Parkinson's patients? The researchers will assess the various stages of swallowing before, after, and 3 months after the rehabilitation protocol, focusing on the oral phase to determine if rhythmic auditory cueing reduces the frequency of rolling. Participants will be required to: * Perform three complete assessments (clinical speech therapy examination + pharyngography) before the protocol, after the protocol, and 3 months post-protocol. * Attend three times per week for 7 weeks at the La Musse hospital to participate in the protocol sessions under the supervision of a speech therapist.