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The pineal gland (also known as the pineal body [1] or epiphysis cerebri) is a small endocrine gland in the brain of most vertebrates. It produces melatonin, a serotonin-derived hormone, which modulates sleep patterns following the diurnal cycles. [2] The shape of the gland resembles a pine cone, which gives it its name. [3]
According to this belief, humans had in far ancient times an actual third eye in the back of the head with a physical and spiritual function. Over time, as humans evolved, this eye atrophied and sunk into what today is known as the pineal gland. [9]
Epiphenomenalism is a position in the philosophy of mind on the mind–body problem.It holds that subjective mental events are completely dependent for their existence on corresponding physical and biochemical events within the human body, but do not themselves influence physical events.
However, Descartes believed that the physical body and the mind must be physically connected at some point. Descartes’ reasoning came from his observation that every structure of the brain is paired except for the pineal gland. He felt that the pineal gland must be the meeting point of the physical body and the mind, and therefore, the pineal ...
Descartes believed that the mind was non-physical and permeated the entire body, but that the mind and body interacted via the pineal gland. [30] [31] This theory has changed throughout the years, and in the 20th century its main adherents were the philosopher of science Karl Popper and the neurophysiologist John Carew Eccles.
René Descartes proposed physical models to explain animal as well as human behavior. Descartes suggested that the pineal gland, a midline unpaired structure in the brain of many organisms, was the point of contact between mind and body.
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communication within the body using hormones made by endocrine glands: hypothalamus, pituitary, pineal gland, thyroid, parathyroid and adrenal glands, ovaries and testicles: Exocrine system: various functions including lubrication and protection: ceruminous glands, lacrimal glands, sebaceous glands and mucus: Lymphatic system