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Related Experiment Videos

Early interference in a priming task with brief masked targets.

B E McLeod, R E Walley

    Canadian Journal of Psychology
    |December 1, 1989
    PubMed
    Summary

    Priming effects show interference under low attention and short stimulus onset asynchrony (SOA), particularly when targets are brief and masked. This suggests unconscious processing is susceptible to inhibition in semantic memory.

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    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Psycholinguistics

    Background:

    • Priming effects are crucial for understanding word recognition and semantic memory.
    • The role of attention in modulating priming is not fully understood.
    • Investigating automatic vs. controlled processing in language tasks is essential.

    Purpose of the Study:

    • To examine priming effects under varying attention levels and stimulus onset asynchrony (SOA).
    • To determine the specific conditions (target duration, masking) that elicit interference.
    • To explore the underlying mechanisms of priming, potentially involving lateral inhibition.

    Main Methods:

    • Two experiments used pronunciation and lexical decision tasks with varied prime types (associate, unrelated, neutral).
    • Stimulus onset asynchrony (SOA) and target duration were manipulated.
    • Attention was controlled by varying prime-target association probability.

    Main Results:

    • Significant interference observed in low attention conditions and at short SOAs (200 ms).
    • Interference was contingent on brief target presentation and masking.
    • Results support a model of lateral inhibition in semantic memory.

    Conclusions:

    • Unconscious processing, especially with brief, masked targets, is vulnerable to inhibitory effects.
    • Lateral inhibition in semantic memory may explain priming interference.
    • Attention modulates the susceptibility of semantic representations to inhibition.

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