Science · 1964 · 53 citations · 4 references
NeurophysiologyNeuroanatomySympathetic Nervous SystemPhysiologySerotonin RhythmSympathetic NervesMedicineNeuroendocrine MechanismPineal OrganNeurotransmitterNeuroscienceSerotonin ContentCentral Nervous SystemNervous SystemOptogeneticsPeripheral Nervous SystemPineal GlandHealth Sciences
The serotonin content of the pineal organ of the rat varies diurnally in relation to the photoperiod. When the sympathetic nerves to the pineal are interrupted by the removal of the superior cervical ganglia, no such fluctuation in the serotonin content of the pineal occurs.
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