title: Vocal Responses in Heighted States of Arousal.
abstract: OBJECTIVE
  The purpose of this study was to investigate electroglottography (EGG) contact quotient modulation with emotional state in the presence of increased arousal.
  
  
  METHODS
  A within-subject reversal paradigm using multiple experimental conditions.
  
  
  METHODS
  A total of 11 healthy undergraduate students underwent emotion induction with intermittent startles to increase physiologic arousal. During emotion induction, they vocalized on the vowel /u/ while EGG was recorded.
  
  
  RESULTS
  EGG contact quotient was significantly greater for negative emotions compared with positive emotions with increased arousal commensurate with past research. In addition, overall EGG contact quotient was greater with elevated arousal. However, the effect sizes were small.
  
  
  CONCLUSIONS
  EGG contact quotient appears to increase with elevated arousal and be greater for negative mood states than positive mood states confirming that emotion states directly influence vocal functioning.
authors.affiliation: School of Allied Health and Communicative Disorders, Northern Illinois University, DeKalb, Illinois.. Electronic address: mvanmersbergen@niu.edu.
authors.forename: Miriam
authors.initials: M
authors.lastname: van Mersbergen
authors.affiliation: School of Allied Health and Communicative Disorders, Northern Illinois University, DeKalb, Illinois.
authors.forename: Patricia
authors.initials: P
authors.lastname: Lyons
authors.affiliation: School of Allied Health and Communicative Disorders, Northern Illinois University, DeKalb, Illinois.
authors.forename: Danielle
authors.initials: D
authors.lastname: Riegler
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D000339:Affect; D001143:Arousal; D004568:Electrodiagnosis; D004644:Emotions; D005260:Female; D005931:Glottis / Q000502:physiology*; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D013216:Reflex, Startle; D011795:Surveys and Questionnaires; D014833:Voice Quality; D055815:Young Adult
keywords: Arousal; Electroglottography; Emotion; Voice; Voice Disorders