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Distinctiveness and serial position effects in recognition

I Neath1

  • 1Purdue University, West Lafayette, IN 47907-1364.

Memory & Cognition
|September 1, 1993
PubMed
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Memory recall shows distinct primacy and recency effects. As retention intervals lengthen, early memories become stronger while later memories fade, explained by a distinctiveness model applicable across different memory tasks.

Area of Science:

  • Cognitive Psychology
  • Human Memory Research

Background:

  • Memory recall exhibits primacy and recency effects.
  • These effects describe the tendency to recall earlier and later items in a list better than middle items.

Purpose of the Study:

  • To investigate how retention interval duration influences primacy and recency effects in visual memory.
  • To test the applicability of a distinctiveness model in explaining these memory phenomena across different experimental designs and paradigms.

Main Methods:

  • Digitized snowflake photographs were used in a recognition test with varied retention intervals.
  • The study employed both between-subjects and within-subjects designs.
  • The distinctiveness model was applied to data from lexical access and free recall tasks.

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Main Results:

  • Overall accuracy and discrimination remained stable regardless of retention interval.
  • Primacy effects increased significantly with longer retention intervals.
  • Recency effects decreased to chance levels as retention intervals increased.

Conclusions:

  • A modified distinctiveness model successfully explains the observed shifts in primacy and recency effects.
  • The model's predictive power extends to different memory paradigms, including lexical access and free recall.