Effects of Pulsed Gamma-Neutron Irradiation on the EEG and Behavior of the Monkey

Abstract

Cortical EEG recording leads were implanted in seven rhesus monkeys (Macaca mulatta). The monkeys were then trained to perform a visual discrimination task. After the animals had been trained to acceptable levels of performance, blood pressure measuring devices were surgically implanted. Two weeks after surgery the monkeys were irradiated with a single 2500-rad whole- body pulse of mixed gamma-neutron radiation from the AFRRI-TRIGA reactor. EEG, behavioral, and cardiovascular parameters were continuously monitored and recorded on magnetic tape. Relationships between these EEG measures, behavioral changes, and cardiovascular alternations were then studied both preirradiation and postirradiation. Some degree of apparent relationship was found between changes in the EEG measures after irradiation and changes in performance, particularly during the early transient incapacitation (ETI) period. This relationship could not be well established in the period following ETI or between behavioral and cardiovascular changes.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1972
Accession Number
AD0746168

Entities

People

  • S. G. Levin
  • W. L. Mcfarland

Organizations

  • Armed Forces Radiobiology Research Institute

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Accuracy
  • Arteries
  • Blood
  • Brain
  • Cardiovascular Physiological Phenomena
  • Central Nervous System
  • Computer Programming
  • Computer Programs
  • Computers
  • Frequency
  • Health Services
  • Measurement
  • Nervous System
  • Public Health
  • Radiation Sickness
  • Radiologic Health
  • Waveforms

Fields of Study

  • Biology
  • Psychology

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Nuclear and Radiation Engineering.