[Age factors in the background electrical activity of the superior cervical ganglion neurons in rats].
Background discharges of single neurons were studied from the superior cervical ganglion in newborn, 10-, 20-day-old, 1-, 2- and 6-month-old rats. In all age groups, the largest proportion of neurons exhibited aperiodic activity. The percentage of neurons with respiratory rhythmic was less. In newborn and 10-day-old rats, the frequency of discharges was low. Discharge frequency increased in 20-day-old rats. In 20-day-old and more adult rats, we found neurons bursting with cardiac frequency. The means of frequency did not statistically differ in 1-, 2- and 6-month-old rats. Thus, the pattern of neuronal activity is formed during the development in 20-day-old rats. Final maturation of this pattern is observed in 1-month-old rats.
Korobkin
A A
AA
Vasil'eva
O A
OA
Emanuĭlov
A I
AI
Korzina
M B
MB
Masliukov
P M
PM
D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D004560:Electricity; D004562:Electrocardiography; D006321:Heart / Q000502:physiology; D066298:In Vitro Techniques; D009474:Neurons / Q000502:physiology*; D010507:Periodicity; D051381:Rats; D012119:Respiration; D017783:Superior Cervical Ganglion / Q000166:cytology / Q000254:growth & development / Q000502:physiology*