Effects of limiting afferent flow in early postnatal ontogenesis on the development of defensive reflexes in adult rats

1998 ◽  
Vol 28 (6) ◽  
pp. 613-615
Author(s):  
I. V. Kudryashova
Keyword(s):  
Postnatal Ontogenesis ◽  
Adult Rats ◽  
Early Postnatal Ontogenesis

The role of social isolation in critical periods of early postnatal ontogenesis in the formation of epileptic activity of the brain and learning ability in adulthood

2020 ◽  
Author(s):  
A.YU. SHishelova ◽  
K.S. Smirnov
Keyword(s):  
Social Isolation ◽  
Positive Reinforcement ◽  
Active Avoidance ◽  
Epileptic Activity ◽  
Absence Epilepsy ◽  
Learning Ability ◽  
Postnatal Ontogenesis ◽  
Critical Periods ◽  
Adult Rats ◽  
Early Postnatal Ontogenesis

The effect of complete social isolation in the critical periods of early postnatal ontogenesis on the learning and epileptic activity in Wag/Rij rats with a genetic predisposition to the absence epilepsy was studied. The different learning tasks with positive reinforcement (the Intellicage test) and punishment (the two-way active avoidance in the “shuttle box”) were used. It was found that a 3-hour daily social isolation of rat pups from the mother and siblings in early postnatal ontogenesis changes the learning ability and its connection with epileptic activity in adulthood depending on the period of isolation. The isolation from 2th to 8th postnatal day led to a decrease of epileptic activity and improved the learning with positive reinforcement in adult rats. The isolation from 9th to 15th postnatal day improved the learning a conditioned avoidance response with punishment and induced the interrelations between epileptic activity and the active avoidance learning. The isolation from 16th to 22th postnatal – 14 – Global science. Development and novelty day led to an improvement of positive reward-related learning and formation of the significant interactions between epileptic activity and the learning with positive and negative reinforcement.

Effect of Prenatal Hypoxia on Activity of the Soluble Forms of Cholinesterases in Rat Brain Structures during Early Postnatal Ontogenesis

2020 ◽  
Vol 56 (6) ◽  
pp. 531-540
Author(s):  
A. Yu. Morozova ◽  
A. V. Arutyunyan ◽  
P. Yu. Morozova ◽  
L. S. Kozina ◽  
I. A. Zhuravin ◽  
...  
Keyword(s):  
Rat Brain ◽  
Brain Structures ◽  
Prenatal Hypoxia ◽  
Postnatal Ontogenesis ◽  
Early Postnatal Ontogenesis

Transcription in nerve cells and hepatocytes of rats with different narcologic resistance in early postnatal ontogenesis

1996 ◽  
Vol 121 (5) ◽  
pp. 510-512
Author(s):  
V. N. Yarygin ◽  
E. V. Lipkina ◽  
A. G. Mustafin ◽  
Yu. G. Lipkin ◽  
S. K. Sudakov
Keyword(s):  
Nerve Cells ◽  
Postnatal Ontogenesis ◽  
Early Postnatal Ontogenesis ◽  
Narcologic Resistance
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