Electrocardiographic T-wave amplitude as a non-invasive index of sympathetic myocardial activity: Possible confounding effects of parasympathetic influence

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A noninvasive, psychophysiologic measurement paradigm was used to examine the effects of autonomic activity on electrocardiographic T-wave amplitude and heart rate. Sympathetic nervous system activity was manipulated by having subjects perform a difficult mental arithmetic task. Parasympathetic influences were inferred by measuring respiratory sinus arrhythmia. Preliminary results suggest that both heart rate and T-wave amplitude were influenced by both sympathetic and parasympathetic input. Data for T-wave amplitude draw into question recent claims concerning the specificity of this measure as a noninvasive index of sympathetic myocardial influences.

Original languageEnglish (US)
Title of host publicationProceedings of the 18th IEEE Annual Northeast Bioengineering Conference, NEBEC 1992
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages123-124
Number of pages2
ISBN (Electronic)0780309022
DOIs
StatePublished - 1992
Event18th IEEE Annual Northeast Bioengineering Conference, NEBEC 1992 - Kingston, United States
Duration: Mar 12 1992Mar 13 1992

Publication series

NameProceedings of the IEEE Annual Northeast Bioengineering Conference, NEBEC

Conference

Conference18th IEEE Annual Northeast Bioengineering Conference, NEBEC 1992
Country/TerritoryUnited States
CityKingston
Period3/12/923/13/92

All Science Journal Classification (ASJC) codes

  • Bioengineering

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