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Acute Sleep Restriction Has Differential Effects on Components of Attention
Jasmyn E A Cunningham1,2, Stephanie A H Jones3, Gail A Eskes2,4
1Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
Frontiers in Psychiatry
|November 15, 2018
Summary
Acute sleep restriction impairs vigilance and executive functions, but not orienting attention. This highlights how insufficient sleep differentially impacts cognitive processes, affecting daytime functioning.
Area of Science:
- Cognitive Neuroscience
- Sleep Science
- Psychology
Background:
- Inadequate sleep duration negatively impacts cognitive functions, including attention.
- Attention is modeled as comprising vigilance, orienting, and executive control systems.
- The specific effects of sleep loss on these distinct attentional components remain unclear.
Purpose of the Study:
- To investigate the differential effects of acute sleep restriction on vigilance, orienting, and executive control components of attention.
- To utilize the Dalhousie Computerized Attention Battery (DalCAB) for precise measurement of attentional functions.
Main Methods:
- Healthy women (19-25 years) underwent two conditions: 9-hour time in bed (TIB) and 3-hour TIB (sleep restriction).
- Attentional performance was assessed using the Dalhousie Computerized Attention Battery (DalCAB) on consecutive mornings.
- Subjective sleepiness and mood were recorded after each sleep condition.
Main Results:
- Sleep restriction led to increased self-reported sleepiness and fatigue.
- Performance deficits were most pronounced in vigilance and certain executive functions (go/no-go, flanker, working memory).
- Orienting of attention tasks were not significantly affected by sleep restriction.
Conclusions:
- Acute sleep restriction differentially impacts distinct attentional components, primarily affecting vigilance and executive functions.
- These findings necessitate consideration of specific attentional network vulnerabilities in models of sleep loss.
- Understanding these differential effects is crucial for predicting and mitigating cognitive impairments from sleep deprivation.
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