[The behavior of the progeny of prenatally irradiated rats]

Ambulation and rearing in the open field were decreased in adult male offsprings of rats which were exposed to moderate doses of gamma-irradiation during the last third of their intrauterine development. Single combined external and internal irradiation of the ancestors in the middle of the intrauterine period resulted in increased ambulation in the open field (and its decreased latency) and activity in the wheel in their adult offsprings. The obtained evidence suggests that exposure of parents to harmful factors has its impact on behaviour of offsprings depending on the characteristics of such factors.