This dataset is associated with both a doctoral thesis and planned publications. The thesis is entitled “Cognition, Emotion Regulation, and Mental Health in Parkinson’s Disease” and is expected to be deposited at the University of Reading in 2026. In addition, the dataset underpins a series of manuscripts currently in preparation, including "Every day and Task-based Cognition in Parkinson’s Disease Predicts Emotion Regulation and Wellbeing".