Table 1.

Predefined segments ordering in the course of EEG recording.

Segment 1	Rest 1	duration at least 2 min
Segment 2	Eyes opening/closing	duration at least 10 s
Segment 3	Rest 2	duration at least 10 s; immediately after eye closure
Segment 4	Photic stimulation	stimulation frequencies: 5 Hz (10 s)−10 Hz (10 s)−15 Hz (10 s)−20 Hz (10 s)−25 Hz (10 s)−30 Hz (10 s)−25 Hz (5 s)−20 Hz (5 s)−15 Hz (5 s)−10 Hz (5 s)−5 Hz (5 s); light intensity at least 0.7 Joule
Segment 5	Hyperventilation	duration at least 4 min (2 min hyperventilation by nose + 2 min hyperventilation by mouth)
Segment 6	Eyes opening/closing	duration at least 10 s
Segment 7	Rest 3	duration at least 10 s, immediately after eye closure
Segment 8	Rest 4	duration at least 2 min