An anonymous reader writes: Researchers from the University of Memphis have found that it's possible to use a low-cost EEG device such as the $300 Emotiv Epoc to understand how a user is feeling — opening up the path to genuine psycho-biological feedback in virtual/augmented reality scenarios. The Epoc has been used, in combination with the Razer Hydra, to give users control over VR/AR environments, but integrating emotional feedback into VR environments heralds many new possibilities in the fields of medical research, gaming — and, of course, marketing research.
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