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cerebral atrophy

degeneration and shrinkage of the brain, usually due to aging, disease, or injury. It is marked by enlargement of the surface clefts (sulci) and inner cavities (ventricles) of the brain. In normal aging there may be few or no cognitive effects, but cerebral atrophy may be secondary to more serious disorders, such as cerebrovascular disease, encephalitis, Alzheimer’s disease, or head injury. Also called brain atrophy.

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Psychology term of the day

January 14th 2025

Kruskal–Shepard scaling

Kruskal–Shepard scaling

a type of multidimensional scaling applied to judgments of similarity or dissimilarity for pairs of items (e.g., cities). The dissimilarities are represented by distances between items in a highly dimensional space: Larger distances indicate greater dissimilarity. [William Henry Kruskal (1919–2005), U.S. statistician; Roger N. Shepard (1929–  ), U.S. experimental and cognitive psychologist]