7 studies were found.

1.		Recruiting	Sensory Function in Idiopathic Voice Disorders Conditions: Phonation Disorder; Spastic Dysphonia; Voice Disorder
2.		Recruiting	Characteristics of Idiopathic Familial Voice Disorders Conditions: Laryngeal Disease; Spastic Dysphonia; Voice Disorder
3.		Recruiting	Brain Mapping of Voice Control Condition: Voice Disorders
4.		Recruiting	Dextromethorphan to Treat Patients with Voice Spasms Condition: Voice Disorders
5.		Recruiting	Central Mechanisms in Speech Motor Control Studied with H215O PET Conditions: Communication Disorder; Healthy; Stuttering; Tourette Syndrome; Voice Disorder
6.		Recruiting	Electrical Muscle Stimulation to Aid Swallowing in Dysphagia Conditions: Deglutition Disorder; Healthy
7.		Recruiting	Botulinum Toxin for the Treatment of Involuntary Movement Disorders Conditions: Chorea; Drug Induced Dyskinesia; Movement Disorder; Muscular Disease; Tic Disorder