Machine learning with electroencephalography features for precise diagnosis of depression subtypesDownload PDF

11 Apr 2019 (modified: 05 May 2023)MIDL Abstract 2019Readers: Everyone
Keywords: neuroscience, psychiatry, machine learning, EEG, depression, bipolar
TL;DR: We propose a machine learning approach to precise biomarker-based differentiation of depression subtypes based on EEG data with a variety of features, including microstates, which are novel in depression research.
Abstract: Depression is a common psychiatric disorder, which causes significant patient distress. Bipolar disorder is characterized by mood fluctuations between depression and mania. Unipolar and bipolar depression can be easily confused because of similar symptom profiles, but their adequate treatment plans are different. Therefore, a precise data-driven diagnosis is essential for successful treatment. In order to aid diagnosis, research applied machine learning to brain imaging data, in particular to electroencephalography (EEG), with accuracies reaching 99.5% (unipolar vs. healthy) or 85% (bipolar vs. healthy). However, these results arise from small training sets, without validation on independent data, and thus have a high risk of inflated accuracies due to data over-fitting. We propose to use a bigger corpus of realistic clinical data for training and testing and improve classification with microstates features, which can assess the function of large-scale brain networks.
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