Accession Number:

AD0731994

Title:

Central-Nervous-System Effects as Measured by Reaction Time in Squirrel Monkeys Exposed for Short Periods to Extremely Low-Frequency Magnetic Fields,

Descriptive Note:

Corporate Author:

NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL

Personal Author(s):

Report Date:

1971-08-10

Pagination or Media Count:

11.0

Abstract:

The U.S. Navy has current interest in electromagnetic radiation including the extremely low-frequency ELF region. The Navy has begun a major research effort to scientifically document any physiological effects which these fields can have on man and his ecology. This present experiment was designed to detect any acute instantaneous central-nervous-system effects resulting from exposure to an ELF magnetic field. Reaction-time measurements were taken on three squirrel monkeys for 37 one-hour daily sessions. No significant changes in these measurements were observed between control sessions and sessions in which the animals were exposed to 3 gauss at 45 Hz or to a field of 3 gauss at 7 Hz. Two other indices of performance, reinforcement ratio and efficiency ratio, were also unchanged. The small number of subjects does not permit a firm conclusion however, the evidence indicates that the magnetic field did not produce a central-nervous-system response measurable by the technique employed in this study. Author

Subject Categories:

  • Radiobiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE