The theory that holds that there are four basic temperaments, i.e. melancholic (gloomy), choleric (irritable), sanguine (cheerful), and phlegmatic (apathetic) that are determined by the predominance of one of the four humors, i.e. black bile, yellow bile, phlegm, and blood, respectively, to characterize a person's psychological state.
Its application in medicine is now no longer as extensive as before. Nonetheless, it is still used nowadays by psychologists and the lay public.
See also: humoralism.
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I developed my theory on dogs, although deer are encompassed, and so I'm simply saying in regards to this ... emotional states of prey relative to predator, as these are the primal traits of temperament. These complementary traits of differentiation make advanced sociability possible ...
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