Impairment in Theory of Mind in Parkinson’s Disease Is Explained by Deficits in Inhibition

Table 3

Performance on the standard measures of ToM, social cognition, and executive functioning in the two groups (mean ± SD).

		PD patients (n = 18)	Healthy controls (n = 22)
Social	Ekman	49.42 ± 5.34	47.91 ± 4.30
Cognition	RMET	23.59 ± 3.28	26.77 ± 3.01
Inhibition	Stroop—total	85.83 ± 19.49	91.53 ± 17.83
	Hayling—total scaled score	16.35 ± 2.12	18.70 ± 1.22
	Elevator counting with distraction	7.65 ± 3.02	8.94 ± 1.21
Set-shifting	Plus/Minus ratio	1.38 ± 0.27	1.43 ± 0.17
	Brixton—overall score	4.44 ± 2.50	4.95 ± 2.54
Updating	Digit span: forwards and backwards	7.65 ± 3.02	8.94 ± 1.21
Fluency	FAS—total	40.00 ± 14.25	40.95 ± 10.80
	Animals—total	19.06 ± 4.25	21.60 ± 2.58

; RMET: reading the mind in the eyes test, revised version.