. 2020 Oct 1;132(1):218–225. doi: 10.1016/j.clinph.2020.09.008

Table 2.

Characteristics of the alpha coma pattern in patients 1–5.

	Distribution / Predominance / Max voltage	Appearance (other rhythms)	Frequency	Reactivity	spindling	% of total EEG time
Pt. 1	Diffuse bilateral / even over all areas / 20 µV	Unremitting (random anterior delta 1–1.5 Hz, <20 µV)	11–13 Hz	No	No	100
Pt. 2	Diffuse bilateral / anterior / 30 µV	Unremitting (scattered anterior theta < 20 µV)	12–14 Hz	No	No	100
Pt. 3	Diffuse bilateral / anterior / 25 µV	Almost continuous (some anterior 1.5–2 Hz delta that became hyper-synchronous delta in resting state)	11–13 Hz	No	No	80–85
Pt. 4	Diffuse bilateral / anterior / 25 µV	In long epochs (anterior theta at 20 µV)	12–13 Hz	Yes (from clear spindling to slightly higher voltage less modulated)	Yes	75
Pt. 5	Diffuse bilateral / anterior / 20 µV	In brief epochs (long periods of delta, slow theta / 40–50 µV)	12 (11–13)Hz	Not clear because of the brevity of the alpha epochs	Yes	25

EEG: electroencephalography. Fig. 1, Fig. 2 in main text show EEG samples from patients 1 and 4. Figures showing EEG samples from patients 2, 3 and 5 can be found in the supplementary material.