On the diphasic nature of vasovagal fainting associated with blood-injury-illness phobia

  • Bruce A. Thyer
  • George C. Curtis


A detailed psychophysiologic analysis of a vasovagal faint occurring in a “blood-injury-illness” phobic demonstrated that the syncopal episode consisted of a diphasic response. This lends support to the hypothesis that vasovagal fainting in these patients is caused by an overcompensating rebound parasympathetic activation following sympathetic arousal. Treatment and research implications of this finding are discussed.


Heart Rate Response Relaxation Training Exposure Therapy Phobic Disorder Vasovagal Syncope 
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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Bruce A. Thyer
    • 1
  • George C. Curtis
    • 1
  1. 1.The University of MichiganUSA

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