Abstract:
:In the rat the response of suprachiasmatic nucleus neurons to steady retinal illumination at different adaptation luminances was studied. The results confirm that in this nucleus the discharge rate is more commonly increased than suppressed by light. Interval histograms indicate that a complex process underlies the discharge at any adaptation level. The suppressive or excitatory effect of light has a high threshold. Phasic stimuli appear to be relatively ineffective. These findings are consistent with the retino-suprachiasmatic function in circadian rhythm synchronization. An attempt was made to separate the effects of lateral geniculate from direct retinal inputs to the hypothalamus.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Groos G,Mason Rdoi
10.1016/0304-3940(78)90098-8subject
Has Abstractpub_date
1978-04-01 00:00:00pages
59-64issue
1eissn
0304-3940issn
1872-7972pii
0304-3940(78)90098-8journal_volume
8pub_type
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