Emotiv versus Neuroscan: Validating a gaming EEG system for research quality ERP measurement
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1
ARC Centre of Excellence in Cognition and its Disorders, Macquarie University, Australia
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2
Department of Psychology, Royal Holloway, University of London, United Kingdom
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3
School of Electrical and Information Engineering, University of Sydney, Australia
The high temporal resolution of neural activity that can be measured using electroencephalography (EEG) has proven invaluable for understanding the timing of cognitive processes. However, the setup required to collect EEG data is generally expensive, cumbersome and time-consuming. Emotiv EPOC(www.emotiv.com) is an inexpensive (less than AUS$1500) EEG system that is simple and quick to setup (less than 10 minutes). Designed as a brain-controlled input device for gaming, the wireless, portable system requires little more than cotton pads and salt-water for setup. In this study we tested whether event-related potentials (ERPs) measured using Emotiv were equivalent to those measured using Neuroscan’s Synamps2 system.
We simultaneously recorded auditory ERPs using EPOC and Neuroscan in 21 typical adults (9 male, mean age = 31 years, standard deviation = 5.3 years). EPOC standard sites 16 (AF3, F7, F3, FC5, T7, P7, O1, O2, P8, T8, FC6, F4, F8, AF4, M1, M2) were compared against Neuroscan’s QuickCap International 10-20 sites (F3, F7, FC3, FT7, T7, P7, O1, O2, P8, T8, FT8, FC4, F8, F4, M1, M2 + VEOU, VEOL, HEOL, HEOR). EPOC stimulus markers were inserted using a custom-made device that transformed the physical auditory tones into electrical pulses that were recorded at the two occipital sites of the systems (in effect, sacrificing the use of these sites for brain-based recording). Neuroscan stimulus markers were recorded using a standard parallel port pulse. Preliminary analysis indicates that the Emotiv and Neuroscan systems record similar morphological auditory ERP waveforms, with similar latency and amplitude measures.
Keywords:
EEG,
ERP,
Emotiv,
Neuroscan,
Validation
Conference:
ACNS-2012 Australasian Cognitive Neuroscience Conference, Brisbane, Australia, 29 Nov - 2 Dec, 2012.
Presentation Type:
Poster Presentation
Topic:
Other
Citation:
Badcock
NA,
Mousikou
B,
Mahajan
Y,
De Lissa
P,
Thie
J and
McArthur
G
(2012). Emotiv versus Neuroscan: Validating a gaming EEG system for research quality ERP measurement.
Conference Abstract:
ACNS-2012 Australasian Cognitive Neuroscience Conference.
doi: 10.3389/conf.fnhum.2012.208.00122
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Received:
25 Oct 2012;
Published Online:
17 Nov 2012.
*
Correspondence:
Dr. Nicholas A Badcock, ARC Centre of Excellence in Cognition and its Disorders, Macquarie University, Sydney, Australia, nicholas.badcock@uwa.edu.au