Motor sequence learning performance in Parkinson’s disease patients depends on the stage of disease
Brain and Cognition. 2011;75(2):135-140 
Alexithymia, depression, and cognition in patients with Parkinson’s disease
Acta Neurologica Belgica. 2021;
Depression, Cognition, and Functional Ability in Patients with Alzheimer's Disease
Journal of the American Geriatrics Society. 1994;42(2):186-191
Pragmatic abilities in early Parkinson’s disease
Brain and Cognition. 2021;150:105706
A comparison of cognition and toe tapping speed regulation ability in Parkinson’s disease patients: a pilot study
Parkinsonism & Related Disorders. 2018;46:e50
Linguistic correlates of asymmetric motor symptom severity in Parkinson’s Disease
Brain and Cognition. 2010;72(2):189-196
Speech Impairment, Phonation, Writing, Salivation, and Swallowing in Patients with Parkinson’s Disease
Advances in Speech-language Pathology. 2017;
Altered directed connectivity during processing of implicit versus explicit predictive stimuli in Parkinson’s disease patients
Brain and Cognition. 2021;152:105773
Do cognition and other non-motor symptoms decline similarly among patients with Parkinson’s disease motor subtypes? Findings from a 5-year prospective study
Journal of Neurology. 2017;264(10):2149-2157
Depression links with the non-motor symptoms of Parkinson’s disease
. 2022;