EEG-Recorded Responses to Short Chord Progressions

This dataset contains scalp-recorded EEG responses from two human participants hearing short chord progressions with expected (tonic) and deviant (dominant, flatted supertonic, or silent) cadential events in keys of C Major, B Major, and F Major (12 chord progressions total). EEG data are published in Matlab (.mat) format, in two forms. First, two preprocessed data files (one per participant, each around 300MB), used as input to classification in the Kaneshiro et al. (2012) proceedings paper, each contain 108 epoched trials of response to the fifth chord (cadential event) for each of the 12 stimuli, for a total of 1296 trials of data per participant. Second, 24 minimally preprocessed EEG recordings (12 per participant, each between 650-811MB) each contain 54 tonic-ending progressions and 9 of each deviant-ending progression for every key, for a total of 648 tonic-ending progressions and 108 of each deviant-ending progression per key per participant. In addition to EEG data, this dataset includes audio files (.wav format) and a notated score of the stimuli, with mappings to stimulus triggers.