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Related Experiment Videos

Attention shifts produce spatial stimulus codes

R Nicoletti1, C Umiltà

  • 1Istituto di Fisiologia Umana, Università di Modena, Italy.

Psychological Research
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

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The Simon task shows that stimulus location affects response speed. This research supports the idea that attention orienting to stimuli causes this Simon effect, similar to Stroop interference.

Area of Science:

  • Cognitive Psychology
  • Human Attention Studies

Background:

  • The Simon task demonstrates that irrelevant stimulus location influences response speed.
  • Previous work proposed attention orienting to stimuli causes Stroop-like interference in the Simon task.

Purpose of the Study:

  • To provide empirical support for the hypothesis that attention orienting causes the Simon effect.
  • To test predictions regarding stimulus spatial coding and attention's role in the Simon effect.

Main Methods:

  • Three experiments were conducted to investigate the Simon effect.
  • Methodology focused on manipulating attention direction and observing its influence on stimulus-response compatibility.

Main Results:

  • Experimental results support the prediction that stimulus spatial codes are formed relative to the focus of attention.

Related Experiment Videos

  • The Simon effect was observed only when attention was allowed to orient to the stimulus.

    • Conclusions:

    • The findings confirm that the Simon effect is contingent upon the ability of attention to orient towards the stimulus.
    • This supports the notion that attention-driven interference underlies the Simon effect.