Deep Brain Stimulation Frequency of the Subthalamic Nucleus Affects Phonemic and Action Fluency in Parkinson’s Disease

Table 6

Correlational analysis between VF tasks (phonemic and action), demographic, cognitive, and clinical measures.

	Phonemic - P		Phonemic - FAS		Action
	Age	−0.207	0.382	−0.473		−0.352	0.152
Education	−0.192	0.416	0.300	0.212	−0.021	0.935
MMSE	−0.014	0.953	0.215	0.377	0.108	0.669
Time of disease, years	0.400	0.081	0.358	0.132	−0.036	0.887
Time after surgery, months	0.288	0.218	0.440	0.060	0.284	0.253
Levodopa equivalent dose	0.351	0.140	0.131	0.592	−0.003	0.992
HDRS, total score	0.011	0.964	0.078	0.757	−0.138	0.599
UPDRS, total	−0.686		−0.342	0.165	−0.058	0.825
UPDRS, tremor	−0.200	0.426	−0.133	0.600	0.020	0.939
UPDRS, gait	−0.378	0.122	0.004	0.986	0.003	0.990
UPDRS, pull test	−0.312	0.207	−0.479	0.068	−0.321	0.209

HDRS: Hamilton Depression Rating Scale; MMSE: Mini-Mental State Examination; UPDRS: Unified Parkinson’s Disease Rating Scale; .