Advertisement

Y

  • Andrew J. Larner
Chapter

Abstract

Yawning is an arousal reflex thought to be generated in the brainstem reticular formation to counteract brain hypoxia; it may precede vasovagal syncope. Excessive or pathological yawning (chasm) is compulsive, repetitive yawning not triggered by physiological stimuli such as fatigue or boredom.

Keywords

Amyotrophic Lateral Sclerosis Progressive Supranuclear Palsy Motor Neurone Vasovagal Syncope Cross Reference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Andrew J. Larner
    • 1
  1. 1.Walton Centre for Neurology & NeurosurgeryLiverpoolUK

Personalised recommendations