vitamin deficiency

lack of a vitamin needed for normal bodily functions. For example, deficiency of thiamine (vitamin B₁) is often associated with severe and chronic alcoholism (see Wernicke’s encephalopathy; Wernicke–Korsakoff syndrome).

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Psychology term of the day

February 23rd 2025

perceptual organizational deficit

a phenomenon in which a subset of people with schizophrenia have particular difficulty visually integrating the parts of an object and seeing them as an ensemble. For example, if looking at a watch, they will perceive the hands, the dial, and the numbers as separate forms but will have difficulty processing the watch face as a whole. [coined by U.S. psychologist Steven M. Silverstein (1962– )]