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Effects of age, light and sympathetic innervation on electrical activity of the rat pineal gland

Brain ResearchPublished 1 April 1971
Shawn Schapiro, Manuel Salas
Citations51
SJR quartileQ2
SJR score0.85
SNIP0.72

Abstract

The pineal gland of the adult rat exhibits low amplitude high frequency spontaneous activity at about 13–22 c/sec with periodic bursts of 1–3 sec duration at 6–12 c/sec. A following response is seen after photic stimulation with white light at 2.5, 5 or 10 flashes/sec. Yellow, blue, and green light elicited essentially the same responses as white light, but the response to red light was much smaller. Superior cervical ganglionectomy did not abolish the following response but eye enucleation did. Spontaneous activity of the pineal could be seen in 13-day-old rats but the following response was not present until about day 18.

Keywords

NeuroscienceBiochemistry, Genetics and Molecular Biology