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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Perceptual load theory posits high load prevents distraction.
  • Evaluative pressure induces top-down attentional control, increasing susceptibility to task-relevant distractors.

Purpose of the Study:

  • To investigate if top-down attention under evaluative pressure overrides the bottom-up effects of high perceptual load on distraction.
  • To examine the role of self-relevance in attentional control.

Main Methods:

  • A response-competition task was used.
  • Participants were divided into a control condition and an evaluative pressure condition (believing intelligence was assessed).
  • Perceptual load levels were manipulated.

Main Results:

  • High perceptual load suppressed task-relevant distractor interference in the control group.
  • Participants under evaluative pressure experienced task-relevant distractor interference at all perceptual load levels.
  • This indicates evaluative pressure negates the protective effect of high perceptual load.

Conclusions:

  • The findings challenge core assumptions of the perceptual load theory.
  • Self-relevance of performance situations is a critical, overlooked factor influencing attentional control and distractibility.
  • Top-down attentional modulation under evaluative pressure can override bottom-up attentional mechanisms.