'Back to the Future' star Michael J Fox has pledged more than €110,000 in funding toward the development of a new app for monitoring Parkinson's disease sufferers' symptoms.
The Hollywood actor, who suffers from the degenerative disorder, founded The Michael J Fox Foundation for Parkinson's Research which has donated more than $750m (€603m) in total for research.
The app is designed to be used by patients at home, allowing them to record their own movements - such as by tapping their smartphone screen to assess their speed reflexes, or placing the phone on their knee to measure tremors.
Data recorded by the phone's sensors will then be used to calculate the severity of a symptom, using the clinical Unified Parkinson's Disease Rating Scale.
The app is currently undergoing clinical trials at University College London Hospital.
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