Intelligence: Is It In The Brain Or The Heart?
Originally posted on Mohamed Ghilan:
Contrary to what we know now, the “organ of intellect” was not always known to be the brain. In fact, before the matter was settled, there were two competing views regarding where the intellect is in the body: the brain or the heart. The most famous of those on one side was Aristotle who was pushing for a cardiocentric (heart-centered) model, which argued that the heart is in fact the organ of intelligence (Frampton, 1991). In his observations, Aristotle noticed that poking the brain of an injured person did not induce pain. He therefore reasoned that the brain is not engaged in perception of any kind. Had he known about pain receptors, I’m sure he would’ve done a few more tests.
In addition, Aristotle noticed that the body grows cold when the heart stops beating, which led him to assume that the heart produces the body’s heat. To protect the heart from overheating, Aristotle assigned the function of cooling the unremitting heart to the brain. Furthermore, by Aristotle’s time it was known that human voice is supplied by air exhaled from the lungs. Hence, he reasoned that the heart supplies words and they come out together with voice as they roll out of the chest cavity.