Word: diencephalon
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Dates: during 1930-1939
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...pickled specimens as the familiar wrinkled folds which look like sweetbreads, is the seat of reason and intellection. It is also the seat of emotional consciousness. But consciousness is not a process; it is an end-product. The mechanisms which produce emotional consciousness appear to be situated in the diencephalon, a central cluster of organs which is enfolded by the cerebral hemispheres...
...Papez singled out four bodies in the region of the diencephalon, with their numerous nerve connections, and postulated for them a new relationship. "Taken as a whole," he said, "this ensemble of structures is proposed as representing theoretically the anatomic basis of emotions." The four, and their functions according to Dr. Papez...
Deep within the brain is a biologically ancient section called the diencephalon or tweenbrain.* Here the sensations on smell, sight, visceral activity, body position, temperature and pain pause a jiffy on their way to the thinking part of the brain. When one has a general feeling of discomfort, his tweenbrain is trying to tell his main brain an incoherent story. Vague emotions reflect the tweenbrain's mentally low-grade activities. Stomach "nervousness" must also have some relation to the diencephalon, for it to some extent controls digestion and other vegetative processes...