Multichannel waveforms and topographic mapping of the auditory brainstem response under common stimulus and recording conditions

Linda W. Norrix, Theodore J. Glattke

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Topographic representation of brain electrical activity may be employed to provide information about excitation patterns and symmetry of responses to sensory stimulation. The present investigation describes the waveforms and topographic distribution of the auditory brainstem response (ABR) in normal- hearing and neurologically-normal women during several stimulus and recording conditions using a multiple electrode army. Acoustic stimuli were rarefaction clicks presented monaurally at five intensities. Latencies and amplitudes for the sagittal and coronal electrodes as well as the topographies of waves I, III, and V were described. Wave I, in an ipsilateral inverting reference condition, exhibited smallest amplitudes at the temporal electrode ipsilateral to the stimulated ear and maximum voltage at electrode sites contralateral to the stimulated ear. Amplitude and latency patterns of wave III were peculiar to level of stimulation, ear of stimulation and selection of inverting electrode site. Wave III maximum voltage was detected at fronto- central scalp areas contralateral to the stimulated ear. Wave V latencies and amplitudes varied across electrode site and inverting electrode position. Its topography revealed maximum positive voltage at fronto-central electrodes, slightly asymmetric in some instances. Analysis of amplitude and topographic patterns of ABR components may provide useful information to supplement that provided by conventional displays of waveforms.

Original languageEnglish (US)
Pages (from-to)157-182
Number of pages26
JournalJournal of Communication Disorders
Volume29
Issue number3
DOIs
StatePublished - Jan 1 1996

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ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing
  • LPN and LVN

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