Altered States (1980)

Name: Altered States
Released: 1980

A research scientist explores the boundaries and frontiers of human consciousness. Using sensory deprivation and hallucinogenic mixtures from Native American shamans, he explores these altered states of cognizance and finds that memory, time, and reality itself are states of mind.

Genres: Horror, Science Fiction, Thriller

What to watch after Altered States

Images (1972) — Same feel: disturbing, mysterious
Coma (1978)
The Ninth Configuration (1980) — Same feel: complex, disturbing
The Entity (1982)
Experimenter (2015) — Same subject: experiment, psychology
Gorky Park (1983)