Many of the motor symptoms of Parkinson disease (PD) can be preceded, sometimes for
several years, by non-motor symptoms that include hyposmia, sleep disorders, depression …

In the long-term, with progression of the illness, Parkinson's disease dementia affects up to
90% of patients with Parkinson's disease. With increasing life expectancy in western …

The ability to use blood to predict the outcomes of Parkinson's disease, including disease
progression and cognitive and motor complications, would be of significant clinical value …

Exercise interventions in individuals with Parkinson's disease incorporate goal-based motor
skill training to engage cognitive circuitry important in motor learning. With this exercise …

Parkinson's disease (PD) is the second most common neurodegenerative disorder,
characterized by dopaminergic neurodegeneration, motor impairment and non-motor …

Brain dopamine (DA) has long been implicated in cognitive control processes, including
working memory. However, the precise role of DA in cognition is not well-understood, partly …

Executive dysfunction can be present from the early stages of P arkinson's disease (PD). It is
characterized by deficits in internal control of attention, set shifting, planning, inhibitory …

Research into the heterogeneous nature of cognitive impairment documented in patients
with Parkinson's disease (PD) has focused on disentangling deficits that vary between …

Several studies, including work from the Parkinson's disease (PD) non-motor group and
others, have established that the non-motor symptoms of PD are common, occur across all …

This paper presents a novel neurobiological model of theory of mind (ToM) that incorporates
both neuroanatomical and neurochemical levels of specificity. Within this model, cortical and …