title: [Effect of constant darkness on relearning in a Y maze and on the temporal dynamics of forced swimming in rats of different ages].
abstract: Prolonged keeping of rats in darkness significantly activated them. This effect manifested itself in shortening of conditioned avoidance latency in the Y-maze against the background of relearning improvement in young (8-9 weeks) animals and its deterioration in mature (18-20 weeks) ones. In animals of various age groups the share of active swimming and the number of active attempts to leave the vessel increased with a decrease of the duration of immobilization in the structure of forced swimming. A significant increase of the number of immobilization short cycles (up to 6 s) on the actogram and a reduction in the number of more protracted immobility periods were noticed. Participation is suggested in such effect realization of biologically active pineal gland factors.
authors.forename: K B
authors.initials: KB
authors.lastname: Ovanesov
mesh_terms: D000375:Aging / Q000502:physiology*; D000818:Animals; D002940:Circadian Rhythm; D003214:Conditioning, Classical / Q000502:physiology; D003623:Dark Adaptation; D003624:Darkness; D004924:Escape Reaction / Q000502:physiology; D007858:Learning / Q000502:physiology*; D008297:Male; D005082:Physical Exertion; D010870:Pineal Gland / Q000502:physiology; D051381:Rats; D011930:Reaction Time / Q000502:physiology; D013550:Swimming; D013997:Time Factors
vernacular_title: Vliianie postoiannoĭ temnoty na pereobuchenie v Y-obraznom labirinte vremennúiu dinamiku prinuditel'nogo plavaniia u krys raznogo vozrasta.