title: Covert speech behavior during video-viewing tasks with and without an overt speech soundtrack.
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.
authors.affiliation: School of Psychology, California Institute for Human Science, Encinitas 92024, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Livesay
mesh_terms: D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D008046:Lip; D008297:Male; D010865:Pilot Projects; D013060:Speech; D014705:Verbal Behavior; D014743:Videotape Recording