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Psychological Phenomena

Fan Effect

Memory Biases and Effects

The fan effect is a cognitive psychology phenomenon in which recognition time or error rate for a given concept increases as more separate facts, or associations, become linked to that concept in memory. The name refers to the number of associative links, or fan, radiating out from a concept in a person's mental network; the more such links a concept has acquired, the longer it typically takes to retrieve or recognize any one of them.

Facts
Core Claim
Recognition times or error rates for a concept increase as more information about the concept is acquired. 1
First Described Year
1974 1
Classification
Type of Phenomenon
Cognitive Phenomenon 1
Sources
1. Fan effect (Wikipedia)
  • Lead paragraph
    recognition times or error rate for a particular concept increases as more information about the concept is acquired.
  • History section
    The fan effect first appeared in a series of experiments conducted by John R. Anderson, a cognitive psychologist, in 1974.
  • lead section, phenomenon-kind classification
    The fan effect is a psychological phenomenon under the branch of cognitive psychology where recognition times or error rate for a particular concept increases as more information about the concept is acquired.
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