“…Idiopathic Parkinson's disease (PD) is a progressive neurodegenerative disorder characterised by prominent motor impairment, including tremor, rigidity, bradykinesia, and postural instability. However, although motor deficits represent the core diagnostic criteria, PD is also often associated with neuropsychiatric and cognitive disturbances (Coundouris et al, 2019;Gray & Tickle-Degnen, 2010;Henry et al, 2004;Kudlicka et al, 2011;Muslimović et al, 2007;Ramanan & Kumar, 2013). This includes deficits in all six neurocognitive domains specified in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5;American Psychiatric Association, 2013).…”