Find over 25,000 psychological definitions


autokineticeffect

 an optical illusion experienced when a person in a totally dark roomsees a stationary spot of light appearing to move.

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Psychology term of the day

June 21st 2021

pervasive developmentdisorder (PDD)

refers to a group of five disorders characterised by delays inthe development of multiple basic functions includingsocialisation andcommunication. The most commonly known PDD is autism.