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Neuro Usability Testing (or Evaluating Interfaces Using Electroencephalography)

Neuro Usability Testing (or Evaluating Interfaces Using Electroencephalography). Jeff Escalante. Inter-who?. History of Interfaces. History of Interfaces. History of Interfaces. Measuring ‘Usability’. Take the information straight from the brain!. The Error Potential.

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Neuro Usability Testing (or Evaluating Interfaces Using Electroencephalography)

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  1. Neuro Usability Testing (or Evaluating Interfaces Using Electroencephalography) Jeff Escalante

  2. Inter-who?

  3. History of Interfaces

  4. History of Interfaces

  5. History of Interfaces

  6. Measuring ‘Usability’

  7. Take the information straight from the brain!

  8. The Error Potential

  9. Electroencephalography (EEG)

  10. Sternberg Memory Task

  11. Stop – Demo Time!

  12. M

  13. Q

  14. X

  15. L

  16. +

  17. X

  18. Easy, right?

  19. L

  20. B

  21. P

  22. Z

  23. M

  24. C

  25. T

  26. G

  27. J

  28. Q

  29. D

  30. F

  31. +

  32. G

  33. The Second Part Symbols Links Motion Sound Buttons

  34. Analysis

  35. Analysis 10 Subjects (this is enough for EEG studies) Folding average across subjects & conditions Compared ‘error potential expected’ and ‘no error potential expected’ conditions across Cz and Fz sites Used an ANOVA at 95% confidence to test

  36. Results – First Part Found an error potential! F(1,8) = 4.15, p = .0421

  37. Results – Second Part

  38. Results – Second Part • Detected error potentials in: • Symbols • Motion • Sound • No significant error potentials in: • Links • Buttons

  39. Fail?

  40. Limitations

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