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Related Experiment Videos

Distinctiveness effects in recall: differential processing or privileged retrieval?

P J Waddill1, M A McDaniel

  • 1Department of Psychology, Murray State University, KY 42071-0009, USA. paula.waddill@murraystate.edu

Memory & Cognition
|March 31, 1998
PubMed
Summary

Unusual information is recalled better than common information due to memory representation, not just different encoding processes. This distinctiveness effect is supported by memory representation, impacting recall.

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Area of Science:

  • Cognitive Psychology
  • Memory Studies

Background:

  • The distinctiveness effect describes better recall of unusual information compared to common information.
  • Differential processing accounts suggest this occurs due to distinct encoding processes for unusual material.

Purpose of the Study:

  • To investigate the underlying mechanisms of the distinctiveness effect.
  • To differentiate between differential processing and representation accounts of memory.

Main Methods:

  • Experiment 1 used a between-list design with manipulated presentation rates.
  • Experiment 2 employed a within-list design with elaborations to test both accounts.

Main Results:

  • No distinctiveness effect was found in Experiment 1's between-list design.

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  • Distinctiveness effects emerged in all conditions of Experiment 2, regardless of elaborations.
  • Recall patterns did not differ between elaborated and unelaborated conditions in Experiment 2.

    • Conclusions:

    • Results support representation accounts over differential processing accounts.
    • Memory representation and retrievability are key factors in the distinctiveness effect.