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Unformatted text preview: SCN receives input from eye (specialized melanopsin cells) Sends projection by way of SCG to pineal gland, which releases melatonin--melanopsin may be useful in treating insomnia due to jet lag and in the elderly Awake state- increased activity of Reticular activating system acetylcholine Tuberomammillary histamine orexin Locus coeruleus norepinephrine Raphe nucleus serotonergic...
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