Delirium Tremens - red marker

"One of the most enigmatic forms of visual hallucinations are the highly variable, possibly polymodal Delirium Tremens, which is a form of withdrawl from alcohol in people with late-stage alcoholism. As the name suggests, the subject is usually agitated and confused, especially in the later stages of this disease. Insight is gradually reduced with the progression of this disorder. Sleep is disturbed and short, with REM overflow." said Wikipedia.