color zones

1. areas of the retina that are differentially sensitive to different colors. All colors are perceived in the fovea centralis; blues, yellows, and grays in the middle zone; and (with some overlap) only achromatic colors in the periphery.

2. in perimetry, regions in the visual field with different color sensitivity, corresponding to the regions of retinal color sensitivity.

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Psychology term of the day

January 14th 2025

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]