Objective: To better understand the longitudinal characteristics of Parkinson's disease (PD) through the analysis of finger tapping and memory tests collected remotely using smartphones. Approach: Using a large cohort (312 PD subjects and 236 controls) of participants in the mPower study, we...

Dual/multiple language use has been suggested to affect human cognition and neural substrates. Nevertheless, considerable variability emerges concerning replicability of such effects, likely originating in the common practice of reducing the spectrum of bilingualism to a dichotomy of presence...