Articulatory Changes in Vowel Production following STN DBS and Levodopa Intake in Parkinson’s Disease

Table 1

Individual levodopa daily dose before and after surgery and DBS parameters at one-year followup.

Patient	L-dopa equivalent (mg)		Frequency (Hz)		Voltage (V)		Pulse width (µs)
	Pre-op	Post-op	Left	Right	Left	Right	Left	Right
1	1500	300	130	130	2.8	3.6	60	60
2	1688	650	140	140	2.5	2.5	60	60
3	1200	750	140	140	2.9	2.9	60	60
4	850	600	140	140	2.0	3.8	60	60
5	1684	600	140	140	3.7	3.7	90	60
6	1094	50	140	140	3.0	3.0	60	60
7	900	500	130	130	1.2	3.3	60	60