Skip to main content

Free Content Young poor sleepers mobilize extra effort in an easy memory task: evidence from cardiovascular measures

Download Article:

You have access to the full text article on a website external to Ingenta Connect.

Please click here to view this article on Wiley Online Library.

You may be required to register and activate access on Wiley Online Library before you can obtain the full text. If you have any queries please visit Wiley Online Library


Insomniacs often complain of memory deficits, yet objective measures have not consistently corroborated their subjective impressions. A possible explanation for the partial gap between self-report and behavioral measures of memory impairment is that insomniacs recruit extra effort to compensate for the consequences of poor sleep. The present study investigated whether subjective insomnia severity would predict objective effort mobilization, as indexed by cardiovascular measures, in an easy memory task. Seventy-seven university students, mostly women, with a mean age of 22 years were asked to memorize four strings of four random letters in 5 min while cardiovascular measures were obtained. After taking an immediate recall test, participants completed the Insomnia Severity Index, the Multidimensional Fatigue Inventory, and a questionnaire on last night’s sleep and today’s fatigue. Finally, they were given a surprise delayed recall test. Analyses indicated that self-reported insomnia severity was associated with an increase in systolic blood pressure during the learning phase. Regarding memory performance, insomnia severity was unrelated to immediate recall but related to a decrement in delayed recall. These findings reveal for the first time that subjective insomnia severity predicts objective effort mobilization in an easy memory task, suggesting that young poor sleepers recruit extra resources to cope with everyday cognitive challenges.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: cardiovascular reactivity; effort mobilization; fatigue; insomnia; memory deficits; motivational intensity

Document Type: Research Article

Affiliations: Geneva Motivation Lab, Department of Psychology, University of Geneva, Geneva, Switzerland

Publication date: 2010-09-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more