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Recording Human Electrocorticographic ECoG Signals for Neuroscientific Research and Real-time Functional Cortical Mapping
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EEG reading with or without clinical information - a real-world practice study.

Fábio A Nascimento1, Jin Jing2, Sándor Beniczky3

  • 1Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.

Neurophysiologie Clinique = Clinical Neurophysiology
|September 20, 2022
PubMed
Summary

Most electroencephalographers review clinical information before reading routine electroencephalograms (EEGs), but few believe it should influence the EEG description. Unbiased EEG interpretation is recommended to prevent bias and ensure reliable results.

Keywords:
Cognitive biasEEGElectroencephalo-graphyHistory bias

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Area of Science:

  • Neurology
  • Neurophysiology
  • Medical Imaging

Background:

  • Routine electroencephalogram (rEEG) interpretation is a critical diagnostic tool in neurology.
  • The influence of clinical information on rEEG reading practices and opinions is not well-documented.

Purpose of the Study:

  • To investigate electroencephalographers' real-world behaviors and opinions regarding the use of clinical information during rEEG interpretation.
  • To assess potential biases introduced by pre-existing clinical data.

Main Methods:

  • An anonymous, eight-question online survey was distributed to electroencephalographers via social media and email.
  • Data from 389 respondents were analyzed to understand their practices and beliefs.

Main Results:

  • The majority of respondents reported reviewing clinical information prior to interpreting rEEG findings.
  • However, only a minority of electroencephalographers believe that clinical information should influence the EEG analysis or description.

Conclusions:

  • A discrepancy exists between electroencephalographers' reported practices and their beliefs about the influence of clinical information.
  • It is recommended to review clinical data after an unbiased EEG read to prevent history bias and ensure the generation of reliable electrodiagnostic information.