Neuropsychology (Oct 18, 2018). DOI:10.1037/neu0000498 Objective: Symptoms of anxiety, depression commonly co-occur with cognitive decline in patients with Parkinson’s disease (PD). The directionality of this association is unclear, however, in that poor cognitive performance may lead to increased symptoms of anxiety and depression or higher anxiety and depressive symptoms may lead to cognitive decline. The purpose of this study was to elucidate the directionality of the association between symptoms of anxiety and depression with cognitive performance in newly diagnosed patients with PD.. To read the full article, log in using your NHS OpenAthens details.