Does Dopamine Depletion Trigger a Spreader Lexical-Semantic Activation in Parkinson’s Disease? Evidence from a Study Based on Word Fluency Tasks

Table 1

Average (SD) of anagraphic data of experimental samples and clinical features of patient’s group.

	PD; ()	HC; ()	(df)
Age	66.7 (7.6)	67.9 (5.6)	0.3 (1,37)	0.57
Years of education	11.1 (4.2)	12.4 (3.4)	1.0 (1,37)	0.31
MMSE (raw score)	26.5 (0.45)	29.4 (0.76)	5.6 (1,37)	0.23
H&Y (range) [20]	2.5–3	—	—	—
Disease duration	2.9 (1.9)	—	—	—
UPDRS “ON”	11.8 (4.3)	—	8.2 (1,19)	0.01
UPDRS “OFF”	16.3 (7.6)	—
L-Dopa equivalents	352.1 (138.5)	—	—	—
Therapy duration (years)	1.7 (0.6)