An Evaluation of Possible Effects of Modulated 76 Hz Electric Fields on Behavior and EEG of Monkeys. Phase 2. Frequency Modulation
Abstract
In 1969 a long series of studies were initiated aimed at exploring the possible effects of weak ELF fields on behavior of monkeys in the laboratory. It seemed obvious, at the outset, that low frequency fields at levels of 1-100 V/m p-p were not likely to produce dramatic, sudden onset, behavioral changes. Fields at those levels are routinely encountered in the home areound 60 Hz devices. It was taken as a challenge to find a (1) highly sensitive but reliable behavioral assay that could, in principle, (2) detect thresholds and would allow (3) long exposure durations. A final requirement, based on repeated references in the literature to reaction time, circadian rhythums, etc., was that the task involve some kind of (4) 'timing' behavoir. These four requirements all seemed to be met by employing an interresponse time schedule of reinforcement (IRT task) in which an animal is reinforced for pressing a lever once every N sec within a specified period ('limited hold'). If the animal presses too early or too late, the timer recycles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1980
- Accession Number
- ADA130282
Entities
People
- G. Lesser
- M. Wakefield
- R. Medici
- S. M. Bawin
- W. R. Adey
Organizations
- University of California, Los Angeles