Document Detail


Frequency analysis of electromyographically measured covert speech behavior.
MedLine Citation:
PMID:  2704565     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Eleven subjects were asked to silently read slides of the letters "P" and "T," and to view meaningless control slides similarly as they were presented visually. One-eighth-second electromyographic excerpts were sampled from the baseline and response periods. The data were then transformed into the frequency domain for inferential analyses. The mean power spectral frequencies for the response period were significantly lower than those for the base-line in the overall analysis. There were, however, no significant changes from baseline as a function of kind of stimulus (T, P, or Control) or muscle activated (lips or tongue). It was concluded that there was a generalized responding, not unique to the processing of the specific stimuli studied. Frequency analysis of EMG measures of covert behavior holds some promise of yielding unique information not available through traditional analysis procedures, but more sensitive methods than those used here would be required to demonstrate this.
Authors:
A B Dollins; F J McGuigan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Pavlovian journal of biological science     Volume:  24     ISSN:  0093-2213     ISO Abbreviation:  Pavlov J Biol Sci     Publication Date:    1989 Jan-Mar
Date Detail:
Created Date:  1989-05-15     Completed Date:  1989-05-15     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0414243     Medline TA:  Pavlov J Biol Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  27-30     Citation Subset:  IM    
Affiliation:
Massachusetts Institute of Technology, Cambridge.
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MeSH Terms
Descriptor/Qualifier:
Afferent Pathways / physiology
Electromyography* / instrumentation
Humans
Lip / innervation
Masticatory Muscles / innervation*
Microcomputers
Motor Neurons / physiology
Neuromuscular Junction / physiology
Phonetics*
Signal Processing, Computer-Assisted
Speech Perception / physiology*
Tongue / innervation
Verbal Behavior / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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