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Related Experiment Videos

Negative priming depends on ease of selection

E Ruthruff1, J Miller

  • 1Department of Psychology, UCSD, La Jolla 92093-0109, USA.

Perception & Psychophysics
|July 1, 1995
PubMed
Summary
This summary is machine-generated.

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Negative priming effects indicate distractors are identified. However, this study shows irrelevant stimuli can be filtered before identification, challenging late selection theories.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Attention Studies

Background:

  • Negative priming effects suggest distractors undergo identification.
  • Theories of attention debate whether stimuli are filtered early or late in processing.
  • Distinguishing between early and late selection models is crucial for understanding attentional mechanisms.

Purpose of the Study:

  • To investigate if negative priming occurs when target-distractor discrimination is easy.
  • To test the robustness of negative priming under varying attentional demands.
  • To provide evidence for or against strict late selection theories of attention.

Main Methods:

  • Two experiments were conducted manipulating target-distractor spatial configurations and selection ease.

Related Experiment Videos

  • Experiment 1: Varied target-distractor positions across trials versus fixed positions.
  • Experiment 2: Manipulated selection ease within the prime display while controlling other factors.

    • Main Results:

    • Negative priming was observed when target-distractor positions varied.
    • Negative priming was absent when target-distractor positions were fixed.
    • Similar effects were found when selection ease varied in the prime display.

    Conclusions:

    • Irrelevant inputs can be filtered out before stimulus identification under specific conditions.
    • Findings challenge strict late selection theories that posit identification of all stimuli.
    • Suggests a more flexible attentional filtering mechanism than previously proposed by some models.