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Related Experiment Videos

Congruity effects evoked by subliminally presented primes: automaticity rather than semantic processing.

M F Damian1

  • 1Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands. m.damian@bristol.ac.uk

Journal of Experimental Psychology. Human Perception and Performance
|March 16, 2001
PubMed
Summary

Subliminal word primes influence response times in size judgment tasks, but only when primes are part of the response set. This suggests automatized stimulus-response mappings, not unconscious categorization, drive the congruity effect.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psycholinguistics

Background:

  • Subliminal stimuli can influence cognitive processes.
  • Previous research suggests unconscious processing of primes can affect subsequent responses.
  • The role of abstract vs. concrete processing in subliminal priming remains debated.

Purpose of the Study:

  • To investigate the level of processing for subliminally presented word primes in a size judgment task.
  • To determine if subliminal prime categorization occurs unconsciously.
  • To explore the mechanisms underlying the observed congruity effect in response times.

Main Methods:

  • Participants performed a size judgment task on target words.
  • Prime words were presented subliminally before target words.

Related Experiment Videos

  • Experiments manipulated whether primes were in or out of the response set.
  • Response times were measured for congruent and incongruent prime-target pairs.

    • Main Results:

    • Subliminal primes influenced response times when they belonged to the response set (Experiment 1).
    • This priming effect did not generalize to primes outside the response set (Experiments 2 & 3).
    • The effect generalized across different cases (lowercase to uppercase), suggesting abstract processing (Experiment 4).

    Conclusions:

    • The congruity effect in this task likely stems from automatized stimulus-response mappings.
    • Findings do not support unconscious categorization of primes to the response stage.
    • The study highlights the importance of response set in subliminal priming effects and suggests abstract processing.