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Eyes-Closed and Activation QEEG Databases in Predicting Cognitive Effectiveness and the Inefficiency Hypothesis

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Check out this Knowledge Base article from StressTherapy Solutions: Eyes-Closed and Activation QEEG Databases in Predicting Cognitive Effectiveness and the Inefficiency Hypothesis.

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Study at a glance

Area
QEEG, Methods & Mechanisms
Study type
Observational study
Authors
Thornton K, Carmody D
Journal
Journal of Neurotherapy
Year
2009
Protocol
QEEG during eyes-closed rest and cognitive tasks

Key findings

  • Associations among QEEG variables were complex and varied by task
  • QEEG variables predicting performance under task demands differed from those recorded at rest or in simple attention tasks
  • The authors judge a cognitive activation database to be clinically useful
  • Proposes the coordinated allocation of resources (CAR) hypothesis; the average response pattern lacked the variables critical to task success

DOI 10.1080/10874200802429850 →

This paper argues that QEEG databases built from eyes-closed rest should be complemented by a cognitive activation database. Brain activity was recorded with QEEG during eyes-closed rest, visual and auditory attention tasks, listening to paragraphs and silent reading. Relative power, amplitude, coherence and phase differed clearly across tasks, and the measures that predicted performance during a cognitive task were not those that predicted it from rest or simple attention tasks. The authors propose the coordinated allocation of resources (CAR) hypothesis and suggest the average brain response is inefficient.