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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: J Neurolinguistics. 2019 Apr 1;51:221–235. doi: 10.1016/j.jneuroling.2019.03.004

Table 1.

Participant demographic and other information

PD NC Comparison
Age (in years) 61.50 ± 8.96 59.50 ± 5.62 t(78) = 1.25, P = 0.22
Education (in years) 10.67 ± 3.27 11.57 ± 3.35 t(78) = 1.21, P = 0.22
Handedness 71.43 ± 4.40 70.01 ± 3.85 t(78) = 0.40, P = 0.71
MMSE 27.50 ± 1.1 27.62 ± 1.03 t(78) = 0.52, P = 0.60

Note. Means are presented, together with standard deviations. Education reflects years of schooling starting from first grade. Handedness reflects laterality quotients from the Edinburgh Handedness Inventory (Oldfield, 1971), where 100 represents strongly right-handed and −100 represents strongly left-handed. Comparisons reflect results from independent-samples t-tests. PD: patients with Parkinson’s disease; NC: normal controls; MMSE: Mini–Mental State Examination.