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This review examines recent advancements in machine learning (ML) and deep learning (DL) techniques that promise more objective, quantitative, and precise PD diagnosis. By leveraging diverse data sources\u2014including electroencephalogram (EEG) signals, voice recordings, and Magnetic Resonance Imaging (MRI) scans\u2014these techniques offer a comprehensive approach to understanding and diagnosing PD. The review evaluates the effectiveness of specific ML and DL techniques applied to each data source and addresses existing challenges, such as the need for larger and more diverse datasets, model interpretability for clinical adoption, and generalizability across different healthcare settings. 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