EFFECT OF HEAD VERSUS TRUNK FISSION-SPECTRUM RADIATION ON LEARNED BEHAVIOR IN THE MONKEY.
Abstract
Twenty-two Macaca mulatta monkeys, trained to a discrete avoidance task, were divided into three groups for exposure to either head only, trunk only, or whole-body radiation with a pulsed fission source. A total dose of 6,250 rads was delivered in a 20-msec. pulse. Trained behavior and blood pressure were monitored continuously during the first hour postirradiation. Results indicate that: (1) head or trunk irradiation will produce deterioration in performance; (2) early performance decrement results primarily from a direct effect of radiation on cephalic structures; (3) this head effect is dose-rate dependent; (4) trunk effects are significant in producing a more uniform early decrement and a more severe later decrement; and (5) the hypotensive response seen immediately after whole-body radiation is secondary to radiation effects within the trunk. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1968
- Accession Number
- AD0680740
Entities
People
- Paul H. Chapman
- Robert J Young
Organizations
- United States Air Force School of Aerospace Medicine