John B. Calhoun Film 7.1 [edited], (NIMH, 1970-1972)

This film is a trimmed version of a longer set of stitched-together reels that contain remarks by and interviews with National Institute of Mental Health scientist John B. Calhoun, as well as extensive footage of the thousands of mice Calhoun studied over many years. In Mouse City, Calhoun provided his research subjects food, water, bedding, protection from predators--all that they needed except adequate space. The results were destructive and dramatic. Based on these experiments, Calhoun drew conclusions about human behavior in overcrowded conditions, such as high-density public housing.
National Library of Medicine
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https://www.youtube.com/watch?v=iOFveSUmh9U