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Brain Waves. Brain Fingerprinting. Forensic Science, Biometrics, etc…. Brain-Computer Interface Research: A non-invasive example. J. Bayliss research group – Rochester Institute of Technology. Will this be us?

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brain fingerprinting
Brain Fingerprinting
  • Forensic Science, Biometrics, etc…
brain computer interface research a non invasive example
Brain-Computer Interface Research: A non-invasive example
  • J. Bayliss research group – Rochester Institute of Technology. Will this be us?
  • Goal: “To develop a system that performs real-time EEG signal analysis in order to generate control commands for environmental control, communication, or even simple driving commands”
  • The Hope: “A big signal like the P300 can be recognized via single trial recognition in order to trigger commands on the VR car. We currently have around 85% average recognition accuracy.”
  • Success: “P300” signal response is evoked, trained via biofeedback, used to activate things in a virtual apartment.
electroencephalograph eeg
Electroencephalograph - EEG
  • Brain has continuous electrical activity that can be recorded
  • Pairs of electrodes attached to scalp form distinct channels
  • Weak signal ~millivolts is sent thru amplifier
  • Continuous output recorded via galvanometer.
slide6
Each pair of electrodes forms a channel to measure something - maybe potential difference between them?
  • Localized anomalies pinpoint physical brain problems
  • Computer waveform analysis: high-speed samples taken 200 times/second to convert analog>digital
  • Commercially available to run on PCs and Macs, you can even use it qualitatively if you’re bad at math
other non invasive brain mapping techniques
Other Non-Invasive Brain Mapping Techniques
  • Positron emission tomography
  • event-related potentials
  • electro-and magnetoencephalography,
  • magnetic resonance imaging
  • single-photon emission tomography
  • boring
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