Land effect

a demonstration used to develop the retinex theory of color vision. To produce the effect, a multicolored scene is photographed with black and white film, once through a red filter and once through a blue–green filter. When the resulting images are projected simultaneously onto a screen through the opposite filter used to photograph the image, the original multicolored scene is perceived. [Edwin Herbert Land (1909–1991), U.S. inventor]

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Psychology term of the day

February 24th 2025

psychooncology

n. the study of psychological, behavioral, and psychosocial factors involved in the risk, detection, course, treatment, and outcome (in terms of survival) of cancer. The field examines responses to cancer on the part of patients, families, and caregivers at all stages of the disease. —psychooncological adj. —psychooncologist n.