Pineal gland refers to the gland in the brain that helps regulate body rhythms and sleep cycles. It is a small unpaired gland in the brain, just posterior to the thalamus, that releases the hormone melatonin Pineal gland is the gland at the base of the brain that René Descartes identified as being the seat of the soul.

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Melatonin at psychology-glossary.com■■■■■■
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Pituitary Gland at psychology-glossary.com■■■■■
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Central Core (Brain) at psychology-glossary.com■■■■
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Pituitary Gigantism at psychology-glossary.com■■■■
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Anterior hypothalamus at psychology-glossary.com■■■■
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ADH at psychology-glossary.com■■■■
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Hormone at psychology-glossary.com■■■■
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Endocrine gland at psychology-glossary.com■■■■
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