Guideline 6: The temporal architecture of each recording should be annotated. The internal temporal architecture of each recording should be documented, including timing of performance blocks and rest periods between task blocks. If blocks of trials were used to vary or counterbalance some aspect of the experiment, event markers for the beginnings and ends of these blocks should also be included. More generally, information that remained fixed throughout the recording should be gathered and annotated using a meta-event marker inserted at the time of the first data sample.