Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan


  • Dona LockeEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_250


In the ICSD-3, insomnia is defined as “a persistent difficulty with sleep initiation, duration, consolidation, or quality that occurs despite adequate opportunity and circumstances for sleep, and results in some form of daytime impairment” (p. 19). Depending on severity, insomnia can be associated with feelings of restlessness, irritability, mild anxiety, daytime fatigue, and tiredness. ICSD-3 divides insomnia disorders into three types: chronic insomnia disorder, short-term insomnia disorder, other insomnia disorder. Additional isolated symptoms and normal variants include: excessive time in bed and short sleeper insomnia may be attributable to a combination of psychological and neurological factors, and neuropsychological assessment can help delineate the contribution of both etiologies.


References and Readings

  1. American Academy of Sleep Medicine. (2014). International classification of sleep disorders (3rd ed.). Chicago: American Academy of Sleep Medicine.Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Psychiatry and PsychologyMayo ClinicScottsdaleUSA