Source checks found a scale factor of 1,000,000 in all 99 ds007822 1.0.0 EEG files and a shift of one second in the source time labels of all 66 task files

We checked whether OpenNeuro ds007822 version 1.0.0 preserves its linked Figshare version 1 source values and task times. All 94,050,000 stored samples in all 99 EEG files equal source values multiplied by 1,000,000 and rounded to float32. All 66 task files add one second to source time labels and place events 300 samples too early relative to the source. Channel order, sample rate, and all 2,640 repeated task-choice entries agree. A new conversion preserves original samples, task time zero, trial choices, and separate rest runs. MNE read all 165 repaired files and all 94,050,000 samples with no failed checks. A separate reader checked all 99 public files. A fresh retrieval of one complete group reproduced the result tables. The package includes code, hashes, metadata, results, figures, retrieval instructions, and a complete original group for offline checks. Voltage interpretation assumes the source authors' microvolt units; event interpretation assumes the source epoch fields are correct. The authors' checked input path can cancel the scale error and uses a manual onset index. This audit does not test their full analysis or validate physical calibration, acquisition timing, or neural coupling.

EEG · hyperscanning · data conversion · unit scaling · time labels · MNE · EEGLAB · Prisoner's Dilemma · source verification · reproducibility