from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The study of the psychological adaptations of humans to the changing physical and social environment, especially of changes in brain structure, cognitive mechanisms, and behavioral differences among individuals.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A theoretical approach to psychology that attempts to explain mental and psychological traits—such as memory, perception, or language—as adaptations, that is, as the functional products of natural selection.
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