Film · 1980 · Films · 1980s
Altered States
Scored from 150 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1980s (3,141 peers).
Summary
A driven Harvard psychophysiologist experiments with sensory deprivation tanks and a hallucinogenic Mexican mushroom brew, convinced that altered consciousness can unlock primal genetic memory. As his sessions intensify, the boundary between mind and body begins to break down, with terrifying physical consequences that threaten him and the wife who loves him.
Altered States is a 1980 horror, science-fiction and thriller film.
The calibrated figure is built from 150 reviewers whose rating history varies enough to place their own average. A broader pool of 152 reviewers with two or more reviews feeds the raw-average track instead. Rotten Tomatoes carries a separate audience for the same title, 815 of whom clear the calibration test. 3,140 other films from the 1980s form the cohort it is ranked inside.
How the score was built
We compare the reviewers of this title against every other title those same people reviewed. Each review is scored relative to the reviewer's own baseline — a 7/10 from a hard grader sits well above their average, while a 7/10 from a generous grader sits below theirs. Every reviewer then counts the same, so the result is a calibrated consensus rather than a raw average.
- Global percentile
- Where Altered States lands against every title we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — titles of the same format released in the same decade. A 1970s film is judged against 1970s films, not against last year's streaming series. Ranked against Films · 1980s (3,141 titles).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each title keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 150.
Cohort: Films · 1980s
