Bibliography (9):

1. Sleep Deprivation Sometimes Relieves Depression. A New Study May Show Why

2. https://osf.io/ubhpx/

3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3309420/

4. Wikipedia Bibliography:

   1. Sleep deprivation

   2. Wake therapy

   3. Amygdala

   4. Functional magnetic resonance imaging

   5. Major depressive disorder

   6. https://en.wikipedia.org/wiki/Anterior_cingulate_cortex  :

      https://en.wikipedia.org/wiki/Anterior_cingulate_cortex