ERSP data

This CSV contains data for both the intervention group (vXX) and the control group (cXX). One participant has two sessions (before- and after-stimulation test sessions), each with 20 trials. "Pre" means the before-stimulation test session, and "pos" means the after-stimulation test session.
The original ERSP values were four-dimensional, consisting of time, frequency, trials, and subjects. For the current dataset, the time points during the imagery phase were extracted, and the frequency bands were limited to the alpha and beta ranges. By taking the median values within these ranges, the data were reduced to two dimensions, representing trials and subjects.
The missing data points indicate that certain trials were rejected due to issues such as poor EEG data quality.