It can be used to measure reliable auditory and visual research-quality ERPs. Conclusions The saline version of the Emotiv EPOC Flex captures data similar to that of a research-grade EEG system. In the resting state task, both systems measured similar alpha power (BF10 = 0.28) and higher alpha power when the eyes were closed than open (BF10 = 32.27). 8.98, BF10 = 51,764), but SNR z-scores indicated a significant brain response at the stimulus frequency for both Neuroscan (z = 12.47) and Flex (z = 11.22). For the SSVEP, the signal-to-noise ratio (SNR) was larger for Neuroscan than Emotiv EPOC Flex (19.94 vs. Although the N170 peak values recorded by the two systems were different (BF10 = 35.88), ICCs demonstrated that the N170 ERP waveforms were strongly correlated over the right hemisphere (P8 0.87-0.97), and moderately-to-strongly correlated over the left hemisphere (P7 0.52-0.84). Results The MMN components and P300 peaks were equivalent between the two systems (BF10 = 0.25 and BF10 = 0.26, respectively), with high intraclass correlations (ICCs) between the ERP waveforms ( 0.81). Method The Emotiv system was used simultaneously with a research-grade EEG system, Neuroscan Synamps2, to collect EEG data across 16 channels during five well-established paradigms: (1) a mismatch negativity (MMN) paradigm that involved a passive listening task in which rare deviant (1,500 Hz) tones were interspersed amongst frequent standard tones (1,000 Hz), with instructions to ignore the tones while watching a silent movie (2) a P300 paradigm that involved an active listening task in which participants were asked to count rare deviant tones presented amongst frequent standard tones (3) an N170 paradigm in which participants were shown images of faces and watches and asked to indicate whether the images were upright or inverted (4) a steady-state visual evoked potential (SSVEP) paradigm in which participants passively viewed a flickering screen (15 Hz) for 2 min and (5) a resting state paradigm in which participants sat quietly with their eyes open and then closed for 3 min each. The aim of the current study was to determine if a new consumer-grade system, the Emotiv EPOC Saline Flex, was capable of capturing research-quality data. Systems in this class are cost-effective and easy to set up and can facilitate neuroscience outside of the laboratory. Abstract : Background Previous work has validated consumer-grade electroencephalography (EEG) systems for use in research.

Emotiv research edition