I am a fourth year in the Neurobiology/Pre-medical program at the University of Cincinnati. My group and I have conducted an experiment in our Neurophysiology lab to determine whether or not the NeuroSky Mindwave uses alpha and beta waves to display changes in meditation and attention respectively. We used our lab proven EEG system provided by the Neuroscience department to compare the EEG readings from both the NeuroSky and our EEG system.
From the results of our experiment, we have concluded that the NeuroSky headset system is not using alpha and beta waves to show changes in meditation and attention. Furthermore, I was able to hold the headset within my hands, and the software started reading brain waves of my hand, which is obviously incorrect.
We have determined from our study that the Neurosky system may be nothing more than a gimmick, and uses flashy words such as “brain EEG” to entice consumers into purchasing it.
If you have any questions about the lab or the study itself that was conducted to determine that this product may be a scam, the link to the scientific paper is below along with the link to the Neuroscience program at The University of Cincinnati.
Consumer-grade EEG devices: are they usable for control tasks?
by Rytis Maskeliunas, Robertas Damasevicius, Ignas Martisius, Mindaugas Vasiljevas
Abstract
We present the evaluation of two well-known, low-cost consumer-grade EEG devices: the Emotiv EPOC and the Neurosky MindWave. Problems with using the consumer-grade EEG devices (BCI illiteracy, poor technical characteristics, and adverse EEG artefacts) are discussed. The experimental evaluation of the devices, performed with 10 subjects asked to perform concentration/relaxation and blinking recognition tasks, is given. The results of statistical analysis show that both devices exhibit high variability and non-normality of attention and meditation data, which makes each of them difficult to use as an input to control tasks. BCI illiteracy may be a significant problem, as well as setting up of the proper environment of the experiment. The results of blinking recognition show that using the Neurosky device means recognition accuracy is less than 50%, while the Emotiv device has achieved a recognition accuracy of more than 75%; for tasks that require concentration and relaxation of subjects, the Emotiv EPOC device has performed better (as measured by the recognition accuracy) by ∼9%. Therefore, the Emotiv EPOC device may be more suitable for control tasks using the attention/meditation level or eye blinking than the Neurosky MindWave device.
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