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Related Experiment Videos

Is there a search in fixed-set memory search?

M A Stadler, G D Logan

    Memory & Cognition
    |November 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    Structural factors in memory search tasks, like probe priming and item repetition confounding, significantly influence the set-size effect. These findings impact how we understand memory search and related cognitive models.

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    Area of Science:

    • Cognitive Psychology
    • Experimental Psychology

    Background:

    • The standard linear set-size effect is a common finding in fixed-set memory search tasks.
    • The underlying causes of this effect are debated, with structural task factors being a potential contributor.

    Purpose of the Study:

    • To investigate the hypothesis that structural factors in memory search tasks contribute to the observed set-size effect.
    • To examine the specific roles of probe priming and item repetition confounding in this effect.

    Main Methods:

    • A lexical decision task was designed to mirror structural factors present in memory search tasks.
    • Two key structural factors were isolated and manipulated: probe priming by the memory set and the confounding of repetitions per item with set size.

    Main Results:

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    • Experimental results demonstrated that the investigated structural factors significantly influence the set-size effect.
    • Both probe priming and the confounding of repetitions per item were shown to play a role in the observed effect.

    Conclusions:

    • Structural elements within memory search tasks are critical determinants of the set-size effect.
    • These findings necessitate a re-evaluation of current models of memory search and how they account for empirical data.