<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dowman, R.</style></author><author><style face="normal" font="default" size="100%">Jonathan Wolpaw</style></author><author><style face="normal" font="default" size="100%">Seegal, R. F.</style></author><author><style face="normal" font="default" size="100%">Satya-Murti, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Chronic exposure of primates to 60-Hz electric and magnetic fields: III. Neurophysiologic effects.</style></title><secondary-title><style face="normal" font="default" size="100%">Bioelectromagnetics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">60-Hz electromagnetic radiation</style></keyword><keyword><style  face="normal" font="default" size="100%">auditory</style></keyword><keyword><style  face="normal" font="default" size="100%">brainstem auditory</style></keyword><keyword><style  face="normal" font="default" size="100%">evoked potential</style></keyword><keyword><style  face="normal" font="default" size="100%">primates</style></keyword><keyword><style  face="normal" font="default" size="100%">somatosensory</style></keyword><keyword><style  face="normal" font="default" size="100%">visual</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1989</style></year><pub-dates><date><style  face="normal" font="default" size="100%">01/1989</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/2751703</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">303–317</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The neurophysiologic effects of combined 60-Hz electric (E) and magnetic (B) fields, of magnitudes comparable to those produced by high-voltage powerlines, were investigated in 10 monkeys (Macaca nemestrina). Six animals (experimental group) were each exposed to three different levels of E and B fields: 3 kV/m and 0.1 G, 10 kV/m and 0.3 G, and 30 kV/m and 0.9 G. Field exposures were preceded and followed by sham exposures, during which factors of field generation were present (e.g., heat, vibration, noise, etc.) without E and B fields. Each of the five segments (i.e., the three exposure segments and the initial and final sham exposure segments) lasted 3 weeks. Animals were exposed for 18 h/day (fields on at 1600 h, off at 1000 h). Four other animals (external control group) were given sham exposure for the entire 15-week period. Auditory, visual, and somatosensory evoked potentials were recorded twice a week, during the daily 6-h field-off period. E- and B-field exposure had no effect on the early or mid-latency evoked potential components, suggesting that exposure at these levels has no effect on peripheral or central sensory afferent pathways. However, there was a statistically significant decrease in the amplitudes of late components of the somatosensory evoked potential during the 10kV/m and 0.3 G, and 30 kV/m and 0.9 G exposure levels. This result is possibly related to the opiate antagonist effect of electromagnetic field exposure reported by others.</style></abstract></record></records></xml>