Changes in Vowel Articulation with Subthalamic Nucleus Deep Brain Stimulation in Dysarthric Speakers with Parkinson’s Disease

Table 1

Characteristics of participants.

Participant	Age	Sex	Education	MoCA^a	Years post-Dx	L-Dopa dose	VHI score^b
PD1	66	M	9	25	25	1500 mg	83
PD2	66	F	11	26	16	600 mg	34
PD3	71	M	6	25	11	500 mg	49
PD4	72	F	19	26	19	300 mg	56
PD5	53	F	11	29	12	300 mg	34
PD6	65	F	12	27	14	500 mg	51
PD7	72	F	19	25	19	500 mg	48
PD8	69	M	13	24	9	300 mg	42

Notes: ^aMoCA = Montreal Cognitive Assessment.
^bVHI = Voice Handicap Index.
Years post-DX = Years after the diagnosis has been made.