Disrupted Development of the Dominant Hemisphere Following Prenatal Irradiation

One hundred children, exposed prenatally to radiation after the Chernobyl nuclear power plant accident, and 50 nonexposed classmates were examined between the ages of 11 and 13 years old using neuropsychiatric tests, WISC, EEG, and visual evoked potentials. Individual prenatal radiation doses were r...

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Bibliographic Details
Published in:The journal of neuropsychiatry and clinical neurosciences 2008-07, Vol.20 (3), p.274-291
Main Authors: Loganovsky, Konstantin N, Loganovskaja, Tatiana K, Nechayev, Stanislav Yu, Antipchuk, Yekaterina Yu, Bomko, Mariya A
Format: Article
Language:English
Subjects:
Adolescent
Autonomic Nervous System Diseases - etiology
Biological and medical sciences
Chi-Square Distribution
Child
Child Development - radiation effects
Confounding Factors (Epidemiology)
Developmental Disabilities - etiology
Developmental psychology
Dominance, Cerebral - radiation effects
Dose-Response Relationship, Radiation
Electroencephalography
Evoked Potentials, Visual - radiation effects
Female
Fundamental and applied biological sciences. Psychology
Humans
Intelligence - radiation effects
Male
Movement - physiology
Occipital Lobe - physiopathology
Occipital Lobe - radiation effects
Pregnancy
Prenatal Exposure Delayed Effects - pathology
Prenatal Exposure Delayed Effects - physiopathology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time - radiation effects
Surveys and Questionnaires
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Summary:One hundred children, exposed prenatally to radiation after the Chernobyl nuclear power plant accident, and 50 nonexposed classmates were examined between the ages of 11 and 13 years old using neuropsychiatric tests, WISC, EEG, and visual evoked potentials. Individual prenatal radiation doses were reconstructed for all examined children. The exposed children were found to have more neuropsychiatric disorders, left-brain neurological signs, lower full-scale and verbal IQ, IQ discrepancies with verbal decrement, disorganized EEG patterns, an excess of lateralized-to-left frontotemporal region delta and beta power with depression of theta and alpha power, and interhemispheric inversion visual information processing. Mothers' mental health, stress, and prenatal irradiation contributed to these effects, along with several confounding factors.
ISSN:0895-0172
1545-7222
DOI:10.1176/jnp.2008.20.3.274