6 studies were found.

1.		Recruiting	Dopamine Function in Developmental Stuttering Condition: Developmental Stuttering
2.		Recruiting	Study of Brain Activity during Speech Production and Speech Perception Conditions: Developmental Articulation Disorder; Stuttering
3.		Recruiting	Genetic Linkage Studies of Stuttering Condition: Stuttering
4.		Recruiting	Characteristics of Idiopathic Familial Speech Disorders Conditions: Developmental Articulation Disorder; Speech Disorder; Stuttering
5.		Recruiting	Central Mechanisms in Speech Motor Control Studied with H215O PET Conditions: Communication Disorder; Healthy; Stuttering; Tourette Syndrome; Voice Disorder
6.		Recruiting	Botulinum Toxin for the Treatment of Involuntary Movement Disorders Conditions: Chorea; Drug Induced Dyskinesia; Movement Disorder; Muscular Disease; Tic Disorder