Table A1. Median (computed across quadruples) lag between video and mobile EEG signals.

The signal length is divided into four equal in time parts to track possible drifts. The numbers represent data points (128 Hz sampling rate).

Patient	Median lag 1st quarter	Median lag 2nd quarter	Median lag 3rd quarter	Median lag 4th quarter
1	739	739	739	739
2	584	584	584	583
3	587	587	614	614
4	780	780	780	780
5	1,046	1,045	1,045	1,045
6	493	492	492	492
7	1,136	1,136	1,136	1,135
9	1,185	1,185	1,185	1,176
10	1,106	1,106	1,106	1,105
11	1,286	1,286	1,286	1,286
13	1,218	1,218	1,218	1,218
14	1,240	1,240	1,239	1,239
15	1,260	1,260	1,260	1,259
16	1,245	1,245	1,245	1,245
17	1,275	1,275	1,275	1,275
18	1,404	1,404	1,403	1,403
19	1,330	1,331	1,330	1,330
20	1,350	1,350	1,350	1,350
21	1,252	1,252	1,252	1,252