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Ushakov, M. V.

doi:10.1023/a:1020916001559

Cited by 1 publication

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“…Doses of ionizing radiation-induced EEG abnormalities were 20-50 times lower than those caused by histologically assessed brain pathology. 2,24,25 A direct activating effect of ionizing radiation on endogenous (pacemaker) generation of nervous impulses in hippocampus was registered at doses of 6-8 mGy. 18 The data of Soviet authors about the highest brain radiosensitivity were supported by other researchers: exposure to 2-4 Gy caused spike discharges in hippocampus and an increase of fast low-voltage activity.…”

Section: Eeg Patterns and Radiationmentioning

confidence: 99%

EEG Patterns in Persons Exposed to Ionizing Radiation as a Result of the Chernobyl Accident

Loganovsky¹,

Yuryev²

2001

JNP

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Prospective conventional EEG study was carried out 3-5 and 10-13 years after the Chernobyl accident (1986) in patients who had acute radiation sickness and in emergency workers in 1986 ("liquidators"). Control groups comprised healthy volunteers; veterans of the Afghanistan war with posttraumatic stress disorder; veterans with mild traumatic brain injury; and patients with dyscirculatory encephalopathy. In 3-5 years after irradiation, there were irritated EEG changes with paroxysmal activity shifted to the left frontotemporal region (cortical-limbic overactivation) that were transformed 10-13 years after irradiation toward a low-voltage EEG pattern with excess of fast (beta) and slow (delta) activity together with depression of alpha and theta activity (organic brain damage with inhibition of the cortical-limbic system). Quantitative EEG is likely to be very informative for investigation of dose-effect relationships.

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Section: Eeg Patterns and Radiationmentioning

confidence: 99%