# Visual Perception

Dr. Hadley Cantril discusses his investigations at the Perception Demonstration Center at Princeton University of the effects of some of our assumptions on what we see. Shows a distorted room that looks normal, with illustrations that include a rotating trapezoid that appears to oscillate, balloons that seem to move when in reality they are being inflated and deflated, or illuminated and darkened. Search Educational Film Journals at Media History Project for references to this film SummaryPresents a di./ia metadata visualpercept to be when carefully laid out to be something else. A photographic study of a variety of water birds. Explains how nature has adapted the birds to meet the problems of survival.

- Kind: Educational
- Year: 1959
- Runtime: 18 min
- By: Educational Testing Service
- Genres: Education, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/visualperception)
- Licence or status: [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/) (as the archive states it)
- Who can watch: Kids profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/visualperception?play=1)