Categorisation of Mobile EEG: A Researcher’s Perspective

Table 4

Specifications of EEG systems as used in published research studies.

EEG system	Sampling rate; (Hz)	Bit res.; (bits)	Number of channels	Battery life (hours)	Electrode type
					Dry/saline/gel	Passive/active	Unshielded/shielded
ActiveTwo [7, 20, 25, 31]	512, 1024, 8192	24	32, 248	10	Gel	Active	Shielded
asalab [10]	1024	24	128	10	Gel	Active	Shielded
B-Alert [32]	256	16	20	8	Conductive cream	Passive	Shielded
EPOC [1, 16, 27, 33]	128	14	14	6	Saline	Passive	Not stated
MindWave [30, 36]	500	16	1	10	Dry	Passive	Shielded
Mobita [18]	2000	24	32	19	Gel	Passive	Shielded
Oldenburg Hybrid [9, 15]	128	14	14	6	Gel	Passive	Shielded
Penso [24]	256	16	8	Not stated	Dry	Passive	Shielded
Profusion [23]	512	16	32	15	Gel	Passive	Not stated
SMARTING [21, 38]	500	24	16, 24	5	Gel	Passive	Not stated
Varioport [22]	2000	16	10	4 days	Not stated	Passive	Not stated
ANT [4, 16]	512, 2048	24	32, 128	5	Gel	Passive	Shielded
Polymate AP216 [5]	1000	16	3	18	Gel	Active	Shielded
V-Amp [37]	2000	24	16	N/A USB	Dry	Active	Shielded
BrainAmp [2, 26, 34]	500, 1000, 2500	16	28, 120, 156	30	Gel	Active	Shielded
NuAmp [35]	500	22	32	N/A USB	Gel	Passive	Unshielded
actiCHamp [19]	500	24	64	24	Gel	Active	Shielded
Cognionics [29]	250	24	10 out of 32	8	Dry	Active	Shielded