Aria Chadha

Measuring Evaluation Leakage in EEG Motor Imagery Decoding, with an Application to Stroke Patients

Brain-computer interfaces (BCIs) that decode imagined movement from EEG are often evaluated using Common Spatial Patterns (CSP), a supervised filtering method. If CSP is fitted to all data before splitting into training and test sets, information from the test labels leaks into the model and inflates reported accuracy....