perceptual classification

in classification tasks, the grouping of items on the basis of their perceptual characteristics. Compare complementary classification; conceptual classification; idiosyncratic classification.

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Psychology term of the day

December 24th 2024

dihydroergotamine

dihydroergotamine

n. a semisynthetic derivative of the ergot alkaloid ergotamine, used in the treatment of acute migraine headache. It is a potent vasoconstrictor due to its ability to antagonize alpha-adrenergic receptors in blood-vessel walls as well as serotonin and dopamine receptors. U.S. trade names: DHE 45; Migranal.