A–Z Glossary

A-not-B Error

The A-not-B error is a pattern in which a baby repeatedly searches in an earlier hiding place after seeing an object moved elsewhere.

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Object Permanence and Early Thinking

Object Permanence and Early Thinking

What Object Permanence Means Object permanence refers to the understanding that an object or person continues to exist when it cannot currently be seen, heard, or touched. For an infant, this is a major shift from responding primarily to immediate sensory information toward maintaining an internal representation of something that is absent from the current […]