Evaluation of a Speech-to-noise Feedback Device for Treatment of Hypophonia in Parkinson's Disease

Evaluation of a Speech-to-noise Feedback Device for Treatment of Hypophonia in Parkinson's Disease

This study will evaluate the effectiveness of a speech-to-noise feedback procedure for the treatment of hypophonia in Parkinson's disease. The procedure includes a device that records the sound intensity level of the wearer's speech and compares it to the noise level around them. The device will provide the wearer with feedback if their speech becomes too quiet for them to be heard by their listener.

This study will evaluate the effectiveness of a speech-to-noise feedback procedure for the treatment of hypophonia in Parkinson's disease. The procedure includes a device that records the sound intensity level of the wearer's speech and compares it to the noise level around them. The device will provide the wearer with feedback if their speech becomes too quiet for them to be heard by their listener.

Inclusion Criteria:

• diagnosed with idiopathic Parkinson's disease and hypophonia by a neurologist at least 6 months prior to participation.
• stabilized on antiparkinsonian medication.
• good general health.
• pass a 40 decibel hearing screening.
• proficient enough in English to participate in speech testing.

Exclusion Criteria:

• history of stroke or an additional neurological or motor control disorder.
• history of speech impairment that is unrelated to Parkinson's disease.