Since March 30, 1995, multimedia artist Bryan Lewis Saunders has done one self-portrait per day, every day. When that started to get boring, Saunders began taking drugs of all types to liven up the work, a process he says has left him with brain damage. 

Saunders is still doing his self-portraits today, though he'll now only take drugs if they are administered by medical professionals for valid health issues. Regardless, the results of his endeavor are a fascinating glimpse into how different chemicals shape our perceptions of self. (above, Saunders on Xanax, Abilify, and Ativan)

Hydrocodone, Oxycodone, and Xanax

Absinthe

Adderall

Ambien

Buspar

Butalbital

Cocaine

Two bottles of cough syrup

Crystal meth

Dilaudid and morphine

Morphine

Huffed gasoline

Psilocybin mushrooms

Nitrous oxide

PCP

Marijuana

Marijuana brownies

Marijuana resin

Salvia

Ritalin