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Covert speech behavior during video-viewing tasks with and without an overt speech soundtrack.

Authors
  • Livesay, J R
Type
Published Article
Journal
Perceptual and motor skills
Publication Date
Dec 01, 1995
Volume
81
Issue
3 Pt 2
Pages
1267–1271
Identifiers
PMID: 8684923
Source
Medline
License
Unknown

Abstract

This pilot study tested the prediction that covert speech activity measured by lip EMG(mu v) is significantly greater during the presentation of prerecorded speech than in a 'speechless' video-viewing test condition and conditions of rest. A single-subject multiple-baseline design was used and nondominant forearm EMG(mu v) activity was also measured for comparison purposes. Analysis showed a significant increase in lip EMG(mu v) activity in 1 out of 2 rest-to-test conditions involving the presentation of prerecorded overt speech. There was no significant difference in the subjects' mean lip EMG(mu v) values across 3 test conditions, however.

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