A research scientist explores the boundaries and frontiers of consciousness. Using sensory deprivation and hallucinogenic mixtures from native American shamans, he explores these altered states of consciousness and finds that memory, time, and perhaps reality itself are states of mind.
You can now watch Altered States online on the following streaming providers in the United States.
| Camera | Jordan Cronenweth | Director of Photography |
| Production | Howard Feuer | Casting |
| Production | Stuart Baird | Associate Producer |
| Art | Thomas L. Roysden | Set Decoration |
| Costume & Make-Up | Rick Baker | Makeup Artist |
| Costume & Make-Up | Rick Baker | Special Effects Makeup Artist |
| Production | Daniel Melnick | Executive Producer |
| Costume & Make-Up | Ruth Myers | Costume Design |
| Camera | James Glennon | Camera Operator |
| Art | Richard Macdonald | Production Design |
| Costume & Make-Up | Dick Smith | Makeup Artist |
| Writing | Paddy Chayefsky | Screenplay |
| Writing | Paddy Chayefsky | Novel |
| Directing | Ken Russell | Director |
| Production | Jeremy Ritzer | Casting |
| Camera | Johnny E. Jensen | First Assistant Camera |
| Production | Howard Gottfried | Producer |
| Sound | John Corigliano | Original Music Composer |
| Editing | Eric Jenkins | Editor |
| Costume & Make-Up | Dione Taylor | Hairstylist |
| Directing | Gary Daigler | Assistant Director |
| Sound | Michael Colgan | Supervising Sound Editor |
| Crew | John M. Woodward | Transportation Coordinator |
| Camera | Bob Rose | Key Grip |
| Art | Sidney H. Greenwood | Property Master |
| Sound | Les Fresholtz | Sound Re-Recording Mixer |
| Sound | Michael Minkler | Sound Re-Recording Mixer |
| Sound | Arthur Piantadosi | Sound Re-Recording Mixer |
| Camera | Garrett Brown | Steadicam Operator |
| Camera | Morgan Renard | Still Photographer |
| Lighting | Gary Holt | Gaffer |
| Directing | Carline Davis-Dyer | Script Supervisor |
| Production | Paul Pav | Location Manager |
| Lighting | Sal Martorano | Electrician |
| Costume & Make-Up | Michael Hancock | Makeup Artist |
| Art | Roger Irvin | Construction Coordinator |
| Lighting | Chris Strong | Electrician |
| Art | Jeff Howard | Assistant Art Director |
| Art | Tony Dyson | Props |
| Camera | Carey Jones | Second Assistant Camera |
| Lighting | Adam Glick | Lighting Technician |
