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Scalp EEG Separation During RSVP Tasks

Scalp EEG Separation During RSVP Tasks. Kaushik Majumdar Indian Statistical Institute Bangalore Center Done with Robert M. Frank in EGI & University of Oregon in 2006. Neurotechnology for Intelligent Analysts. Funded by DARPA of USA in 2006. 8 teams involved. The RSVP Task.

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Scalp EEG Separation During RSVP Tasks

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  1. Scalp EEG Separation During RSVP Tasks Kaushik Majumdar Indian Statistical Institute Bangalore Center Done with Robert M. Frank in EGI & University of Oregon in 2006

  2. Neurotechnology for Intelligent Analysts • Funded by DARPA of USA in 2006. • 8 teams involved.

  3. The RSVP Task • Grey scale satellite images were presented at 3/s rate. • # interesting object : # non-interesting objects ≈ 1 : 3. • 256 channel geodesic sensor net of the EGI.

  4. Target Objects • Tank • Truck • Boat

  5. Scalp Potential Parra et al., NeuroImage 28 : 328 – 341, 2005.

  6. Weighted Average EEG Parra et al., NeuroImage 28 : 328 – 341, 2005.

  7. Raster Plot of Two Channels Parra et al., NeuroImage 28 : 328 – 341, 2005.

  8. FP1 Channel of a Subject Huang et al., http://www.bme.ogi.edu/~huangca/papers/C8.pdf

  9. FP1 in 10 – 20 System http://en.wikipedia.org/wiki/10-20_system_(EEG)

  10. ERP Scalp Image of FP1 of a Subject Huang et al., http://www.bme.ogi.edu/~huangca/papers/C8.pdf

  11. 96 tank trials versus 342 non-tank trials for subject 1

  12. 96 tank trials versus 57 truck trials for subject 1

  13. Logistic Regression Parra et al., NeuroImage 28 : 328 – 341, 2005.

  14. Fisher’s Linear Discriminant

  15. Two Cluster Discriminant

  16. THANK YOU Slides available at http://www.isibang.ac.in/~kaushik/ISSR-2010.ppt

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