Sleep deprivation alters valuation signals in the ventromedial prefrontal cortex.
Researchers using fMRI found that the ventromedial prefrontal cortex was affected by sleep deprivation and impacted on the valuation of monetary and social rewards
Libedinsky, C, DV Smith, CS Teng, P Namburi, VW Chen, SA Huettel, & MW Chee, ‘Sleep deprivation alters valuation signals in the ventromedial prefrontal cortex.’, Front Behav Neurosci vol. 5, 2011, pp. 70.
http://www.ncbi.nlm.nih.gov/pubmed/22028686?dopt=Citation
