Language as a window into Parkinson’s disease

Estela, Klaus, and Miloslav are elderly adults from the outskirts of Medellín, Berlin, and Prague, respectively. Along with more than six million people, they suffer from Parkinson’s disease, a brain disorder that progressively disrupts specific brain networks and causes problems with movement—such as shaking, stiffness, and difficulty with walking—as well as varied cognitive symptoms, such as attention and memory challenges.

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