Minor fix 09.08.23: corrected variable names.
Cardioception study:
Note that the dataset includes 254 persons, of which only 251 were analysed in the main analyses because of insufficient quality of the heartrate data (ECG difficulties). Furthermore, as this was part of a larger study, variables in columns from 112-228 and 507:530 are likely of less interest as they are not related to cardioception