Journal
JOURNAL OF NEUROSCIENCE
Volume 26, Issue 27, Pages 7156-7162Publisher
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.0906-06.2006
Keywords
go/no-go; inhibition; error monitoring; compensation; functional neuroimaging; prefrontal cortex
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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.
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