Find over 25,000 psychological definitions


Yerkes–Dodson law

a law stating that the relation between motivation (arousal) and performance can be represented by an inverted U-curve (see inverted-U hypothesis). [Robert M. Yerkes and John Dillingham Dodson(1879–1955), U.S. psychologists]

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

February 17th 2025

transdermal patch

transdermal patch

an adhesive application that is designed to release a drug at a steady rate via absorption through the skin into the bloodstream. Transdermal patches are used, for example, to administer nicotine in progressively smaller doses to people who are trying to give up smoking.