A study published in the Journal of Sleep Research (Vol. 10, No. 2) in June 2001 found that sleep-deprived participants showed poorer performance, reduced activation in the left temporal region, and increased activation in prefrontal and parietal regions during a task combining arithmetic and verbal learning.
Notes on verification
Confirmed via PubMed, Wiley (Journal of Sleep Research), and Nature summary of the same study; details on brain regions and task type consistent across sources.
Sources
- How does the brain catch up? - American Psychological Association (apa.org)
- https://pubmed.ncbi.nlm.nih.gov/11422722/ (pubmed.ncbi.nlm.nih.gov)
- https://onlinelibrary.wiley.com/doi/10.1046/j.1365-2869.2001.00245.x (onlinelibrary.wiley.com)
- https://www.nature.com/articles/1395768 (nature.com)