Background: Mild cognitive impairment (MCI) is a condition that carries a substantial risk of dementia. The exact magnitude of that risk is uncertain because of the variations in the definition of MCI ...

Objective Traumatic brain injury (TBI) and rapid eye movement sleep behavioural disorder (RBD) are risk factors for Parkinson’s disease (PD). Dopaminergic abnormalities are often seen after TBI, but ...