Two photic pathways contribute to pineal evoked responses

摘要: Abstract In this study, average photic evoked responses were recorded simultaneously in freely behaving rats from the pineal body and ventromedial hypothalamus; permanent semimicroelectrodes implanted several days before experiments begun, both local anesthesia (xylocaine), sympathectomy, general (barbiturate) used as tools to find out whether or not are transmitted via superior cervical ganglion (scg)-nervi conorii and/or through another CNS route. The demonstrated that two separate routes: one, a fast pathway with “shorter” latency, CNS, i.e., habencular posterior commissure complex, other “slower” (or longer) scg pineal.