MacLean’s theory of emotion

an extension of Papez’s theory of emotion emphasizing the importance of all parts of the limbic system, especially the hippocampus and amygdala, in the control of emotional experience. Also called Papez–MacLean theory of emotion. See also Cannon–Bard theory. [Paul D. MacLean (1913–2007), U.S. physician and neuroscientist]

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Psychology term of the day

February 2nd 2025

sample size

the number of observations (cases, individuals, units) included in a selection of items to be studied. This is usually denoted N (for the study as a whole) or n (for subgroups from the study).