TABLE 3.

Neuropsychological performance on Hayling for PD patients in on-phase of the disease and healthy controls.

			PD	% PD	Controls	% HC	p-value
Hayling test	Total number of errors	A: initiation condition	0.266 (0.593)	1.17 (3.96)	0.00 (00)	0 (0)	0.164
		B: inhibition condition	12.53 (3.85)	83.56 (25.68)	4.13 (3.27)	27.56 (21.8)	0.001
	Type of response	Type 1	1.13 (2.16)	7.56 (14.45)	0.00 (0.00)	0 (0)	0.052
		Type 2	10.26 (2.86)	68.44 (19.1)	4.13 (3.27)	27.56 (21.8)	0.001
		Type 3 (correct response)	3.6 (2.61)	24 (17.42)	10.8 (3.32)	72 (22.14)	0.001

Means and standard deviations (in brackets) for type of errors (raw scores and percentages). P-values are provided for raw scores. Percentage of type of errors and correct responses was calculated as the proportion of errors or correct responses from the total sentences to complete in each section (15).