Skip to content
Journal article

Timing errors in auditory event-related potentials

Jing H, Chojnowska C, Heim S, Thomas J, Benasich A ...see all

Journal of Neuroscience Methods, vol. 138, issue 1-2 (2004) pp. 1-6

  • 18

    Readers

    Mendeley users who have this article in their library.
  • 0

    Citations

    Citations of this article.
  • 674

    Views

    ScienceDirect users who have downloaded this article.
Sign in to save reference

Abstract

Electronic problems of electroencephalographic (EEG) system may occur in even the best-managed laboratories. Timing error may happen in the coupling of computers from various manufactures, resulting in the misalignment of event markers that signal the onset of stimuli. In one system, an impedance check desynchronized a computer and thus caused misalignment of events in EEG signals. Thus, the aim of this study was to develop a method to identify and correct such timing errors that contaminated 114 raw data of EEG/auditory event-related potentials (ERPs) recorded in one of our longitudinal studies. A two-step procedure was introduced in the correction of timing errors. First, the time delay was roughly estimated by identifying a P 150 component in two ERP blocks. Second, a small phase-locked positive wave was identified for fine estimation. Reliability within and among evaluators was examined using ERP data with simulated timing errors. Concordant results were obtained in 104 (91.2%) of the 114 raw EEG/ERP data sets. Our results showed that the method presented here is reliable and can be used for correcting timing errors without introduction of experimenter bias. ?? 2004 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Brain
  • EEG
  • Event-related potentials
  • Mismatch negativity
  • Timing

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

Error loading document authors.

Cite this document

Choose a citation style from the tabs below