An old article but a good description of how the neurological deficits affect many of us with severe sleep apnea.
http://www.sciencesleep.org/ziliao/Obstructive%20sleep%20apnea%20and%20the%20prefrontal%20cortex%20towards%20a%20comprehensive%20model%20linking%20nocturnal%20upper%20airway%20obstruction%20to%20daytime%20cognitive%20and%20behavioral%20deficits.pdf

