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Neurobiology of Insomnia

  • Célyne H. BastienEmail author
  • Thierry Provencher
  • Jessica Lebel
  • Roxanne Bolduc-Landry
Chapter
  • 68 Downloads

Abstract

The present chapter will discuss the neurobiology of insomnia. After briefly defining insomnia according to the DSM-5 and the ICSD-2 previous subtypes, prevalence of the disorder will be introduced. Then this chapter will present the sleep-wake regulation system to identify how insomnia might be developed and what is impaired in suffering individuals, especially regarding the flip-flop switch. Techniques used to study the neurobiology of insomnia such as electroencephalography (EEG), magnetic resonance imaging (MRI, fMRI), positron emission tomography (PET), and event-related potentials (ERPs) will be presented. A discussion on the different phenotypes of insomnia, including recent developments in our knowledge of short sleepers and the challenged group of insomnia sufferers (INS), will follow. Finally, the status of our understanding of daily functioning in insomnia and cortical areas involved will be briefly presented. Future directions will conclude this chapter, including an interesting perspective on attention-deficit hyperactivity disorder (ADHD) and insomnia. Note that this chapter deals only with insomnia not comorbid with any other disorders (psychiatric, mental, medical, etc.).

Keywords

Insomnia disorder Neurobiology Flip-flop switch VLPO GABA EEG ERPs Subtypes Phenotypes ADHD 

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Copyright information

© Springer Nature Switzerland AG 2021

Authors and Affiliations

  • Célyne H. Bastien
    • 1
    Email author
  • Thierry Provencher
    • 1
  • Jessica Lebel
    • 1
  • Roxanne Bolduc-Landry
    • 1
  1. 1.School of PsychologyLaval UniversityQuebecCanada

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