Assessing the Minimum Number of Synchronization Triggers Necessary for Temporal Variance Compensation in Commercial Electroencephalography (EEG) Systems

Abstract

This technical note describes the differences in recording when events happen between several commercially-oriented electroencephalography (EEG) recording systems. The four systems examined, Emotiv's EPOC, Biosemi's ActiveTwo, Advanced Brain Monitoring's B-Alert X10 and Quasar's prototype represent different approaches to the problem of recording brain activity in human subjects. We found that the EPOC introduces significantly more error in recording event timing, though this issue is present in all systems. Furthermore, we demonstrate with iterative linear regressions that the number of calibration pulses required to properly estimate timing error is system dependent. Therefore, any new EEG acquisition systems must be tested independently.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2012
Accession Number
ADA568650

Entities

People

  • Keith W. Whitaker
  • W. D. Hairston

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Brain
  • Calibration
  • Compensation
  • Computers
  • Data Acquisition
  • Data Integration
  • Department Of Defense
  • Electroencephalography
  • Errors
  • Information Operations
  • Laboratory Procedures
  • Measurement
  • Military Research
  • Prototypes
  • Recording Systems

Readers

  • Aerospace Test and Evaluation
  • Approximation Theory.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience