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mental development

mental development Mental development is the natural course of changes the individual mind goes through over the lifespan, from birth to death.

Mental development is the natural course of changes the individual mind goes through over the lifespan, from birth to death. In this historical usage, it refers to the development of one individual mind rather than the broader evolution of mental life across a species, and it concerns how mental states arise and change from one stage to another.

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Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Mental Development” (Mental Development).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “mental development.” Development preview.

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