Data used for A functional classification of medial frontal negativity ERPs: Theta oscillations and single subject effects. https://pubmed.ncbi.nlm.nih.gov/27338558/
Age related demographic information in this dataset is uncoded, except in the cases of subjects "0004" and "0007". These subjects perferred not to disclose their age, and thus have had their ages set to the mean age of the cohort.