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- Title
The Neural Basis of Interindividual Variability in Inhibitory Efficiency after Sleep Deprivation.
- Authors
Chuah, Y. M. Lisa; Venkatraman, Vinod; Dinges, David F.; Chee, Michael W. L.
- Abstract
Sleep deprivation results in the loss of our ability to suppress a prepotent response. The extent of decline in this executive function varies across individuals. Here, we used functional magnetic resonance imaging to study the neural correlates of sleep deprivation-induced differences in inhibitory efficiency. Participants performed a go/no-go task after normal sleep and after 24 h of total sleep deprivation. Regardless of the extent of change in inhibitory efficiency, sleep deprivation lowered go/no-go sustained, task-related activation of the ventral and anterior prefrontal (PFC) regions bilaterally. However, individuals better able to maintain inhibitory efficiency after sleep deprivation could be distinguished by lower stop-related, phasic activation of the right ventral PFC during rested wakefulness. These persons also showed a larger rise in such activation both here and in the right insula after sleep deprivation relative to those whose inhibitory efficiency declined.
- Subjects
SLEEP deprivation; NEURONS; PHYSIOLOGICAL stress; PSYCHOPHYSIOLOGY; REST
- Publication
Journal of Neuroscience, 2006, Vol 26, Issue 27, p7156
- ISSN
0270-6474
- Publication type
Article
- DOI
10.1523/JNEUROSCI.0906-06.2006