Workshop III, September 3rd


Psychomotor Vigilance Task

Field: Vigilance 

  • Speaker: Dipl.-Inf. (FH) Thomas Schnupp
  • Overview
  • Test Principle
  • Commonly Utilized Features
  • Comparison of Results of different authors
  • Discussion:
    • problem: too little amount of data
    • Pros and Cons of utilizing Constant Routine protocols
    • Interpretation of fast and slow reaction times as separator between circadian and sleep homeostatic effect


Microsleep Detection

Field: Vigilance

  • Speaker: Prof. Martin Golz
  • Introduction: mild and strong fatigue
  • Sleep apnea and excessive sleepiness
  • Definition of microsleep: behaviour vs. electrophysiology
  • Experimental pitfalls
  • Results of two different labs
  • Discussion
    • Subjective rating of microsleep
    • Value of a fixed team of raters
    • Differences between objective and subjective measures


First results of a new approach to vigilance assessment

Field: Signal Processing

  • Speaker: Rudi Erbe
  • Introduction: description of experiments
  • Introduction: test device
  • Biosignal acquisition
  • Basic signal processing
  • Feature extraction: time-domain methods
  • Outlook: time-domain methods known from EOG analysis
  • Outlook: master thesis
  • Discussion
    • Feature extraction: information-theoretic measures
    • Feature extraction: time-frequency analysis, wavelets, matching pursuit


Alpha Attenuation Test (AAT)

Field: Signal Processing

  • Speaker: Christoph Müller
  • Description of the AAT
  • EEG aspects, e.g. electrode locations, artifacts
  • Experimental setup: sitting vs. lying position, weak visual stimulation
  • Biosignal processing and feature extraction
  • Outlook: master thesis
  • Discussion
    • Different experimental conditions,
    • Inter-individual variations, baseline measurements
    • Non-alpha producing subjects
    • Outlook: Discriminant Analysis


Driver Assistance Systems (DAS) and attention   

Field: Vigilance

  • Speaker: Prof. Martin Golz
  • Introduction: attention, distraction, fatigue
  • Fatigue monitoring in vehicles and adaptive systems
  • Different concept of experiments, real-road versus driving simulation
  • Eye & head movements
  • Signal processing and discriminant analysis
  • Problem: valid criteria for labelling attention
  • Discussion:
    • Automotive industry requires simple & robust solutions
    • Value of different sensors currently available

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