Tracking social behaviour with smartphones in people with Parkinson's: a longitudinal study

Heng Zhang, Bijan Parsia, Ellen Poliakoff and Simon Harper

Behaviour and Information Technology, 2024, vol. 43, issue 11, 2323-2342

Abstract: Parkinson's disease (PD) is a chronic neurological disease that negatively influences patients' quality of life (QoL). Reduced social interactions are a result of both PD symptoms and impairment in QoL, which is known as social withdrawal. Smartphones are suitable for monitoring social behaviour under the notion of digital phenotyping, as people spend significant time socialising on them. We implement year-long longitudinal research using smartphones to study social withdrawal in PD. In addition to an entire year of 24/7 continuous monitoring on smartphones, weekly social ratings and QoL are provided as self-report ground truth. Twenty-three features are extracted from more than 10 million raw data entries collected from eight participants. These features are then used to build models to reflect participants' self-report ratings. We consider the interactions that happen on smartphones, such as calls, messages and social media, and use smartphone sensors to infer face-to-face interactions. By applying multiple linear regression and Naive Bayes, our model is significantly better than just assigning mean and random guesses. The results suggest that our approach provides a more granular method for tracking social behaviour in people with PD via smartphones, and it could benefit wider communities where the social impact on patients needs attention.

Date: 2024
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DOI: 10.1080/0144929X.2023.2243521

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