Age- and sex-related differences in brainstem auditory evoked potentials in secondary school students living in Northern European Russia |
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Authors: | V P Rozhkov S I Soroko |
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Institution: | 1.The Interinstitute Laboratory for Comparative Ecological-Physiological Studies of the Sechenov Institute of Evolutionary Physiology and Biochemistry,Russian Academy of Sciences,St. Petersburg,Russia;2.the Arktika International Research Center, Far East Division,Russian Academy of Sciences,St. Petersburg,Russia |
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Abstract: | Brainstem auditory evoked potentials (BAEPs) were studied in 46 1st- to 11th-year students (22 boys and 24 girls) of a rural
secondary school in Arkhangel’sk oblast. The objective of this work was to study age- and sex-related differences in BAEP
characteristics in children and adolescents, living in the North and assess the BAEP characteristics as compared to reference
values. In all three age groups of students, interpeak intervals I–III, III–V, and I–V characterizing the peripheral and central
conduction times were shorter in girls than in boys. Interpeak interval III–V tended to increase with age only in boys (at
puberty), with a significant increase in the latencies of waves I, III, and V. The BAEP characteristics in the subjects examined
included a shorter peak latency and a greater amplitude of wave I (except senior students), relatively prolonged interpeak
interval I–III, and more pronounced sex-related differences in BAEPs, especially at puberty. These findings show that it is
necessary to revise regional reference values for BAEPs, differentiated by sex and age, including at puberty. |
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