Topographic maps of brain electrical activity--pitfalls and precautions.

Journal Article (Journal Article;Review)

Topographic mapping of brain electrical activity is a popular, powerful, and potentially misleading technique. The map lies at the end of a long chain of physiological, technical, electronic, and mathematical processes and is vulnerable to artifact, error, and distortion at many points. Close attention must be paid to data collection parameters, subject cooperation, minimization of artifact, limitations of resolutions, selection, and transformation of parameters for display, and map generation strategy to yield an accurate, physiologically interpretable map. Review of the data at each step of analysis, from the paper electroencephalogram (EEG) to sets of maps on video display, may be necessary for optimum understanding. Development of more sophisticated qualitative and quantitative concepts of "normal" physiology is needed. These improvements in electrophysiological data analysis demand, rather than obviate, sophistication on the part of the user.

Full Text

Duke Authors

Cited Authors

  • Kahn, EM; Weiner, RD; Brenner, RP; Coppola, R

Published Date

  • March 15, 1988

Published In

Volume / Issue

  • 23 / 6

Start / End Page

  • 628 - 636

PubMed ID

  • 3281717

International Standard Serial Number (ISSN)

  • 0006-3223

Digital Object Identifier (DOI)

  • 10.1016/0006-3223(88)90009-1


  • eng

Conference Location

  • United States