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Related Experiment Video

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The intricacy of memory span.

M J Watkins1

  • 1Department of Psychology, Princeton University, 08540, Princeton, New Jersey.

Memory & Cognition
|November 9, 2013
PubMed
Summary

Memory span is significantly affected by word frequency. High-frequency words enhance memory recall more than low-frequency words, influencing sequence recall order.

Area of Science:

  • Cognitive Psychology
  • Psycholinguistics
  • Memory Research

Background:

  • Word frequency is a known factor influencing cognitive processes.
  • Memory span, a measure of working memory capacity, is susceptible to various linguistic variables.

Purpose of the Study:

  • To investigate the impact of word frequency on memory span.
  • To examine how the order of high- and low-frequency words affects recall.
  • To explore the theoretical implications for memory models.

Main Methods:

  • Utilized the "up-and-down" method to determine memory spans.
  • Presented participants with word sequences varying in frequency (high, low, mixed).
  • Analyzed mean memory spans based on word frequency and presentation order.

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Main Results:

  • Memory span was highest for all high-frequency word sequences (5.82) and lowest for all low-frequency sequences (4.24).
  • Mixed-frequency sequences showed better recall when high-frequency words preceded low-frequency words (5.19) compared to the reverse order (4.65).

Conclusions:

  • Word frequency significantly modulates memory span performance.
  • Findings support distinctions in memory processes, such as primary and secondary memory.
  • Memory span is not a simple unitary process but is influenced by word characteristics and their presentation order.