achromatism

n. color blindness marked by the inability to perceive any color whatsoever: Everything is seen in different shades of gray. It is a congenital condition stemming from a lack of retinal cones. When acquired as a result of brain injury, it is called cerebral achromatopsia; the typical site of injury is the ventromedial occipital cortex of the brain (see V4). Also called achromatopsia. See also dichromatism; monochromatism; trichromatism.

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Psychology term of the day

February 21st 2025

reflection of feeling

a statement made by a therapist or counselor that is intended to highlight the feelings or attitudes implicitly expressed in a client’s communication and to draw them out so that they can be clarified. Also called reflection response.