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Related Experiment Video

Updated: Oct 14, 2025

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
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Do we need attentional suppression?

Dirk Kerzel1, Stanislas Huynh Cong1, Nicolas Burra1

  • 1Faculté de Psychologie et des Sciences de l'Education, Université de Genève, Geneva, Switzerland.

Visual Cognition
|November 1, 2021
PubMed
Summary
This summary is machine-generated.

Attentional suppression may not be a real mechanism, as its effects can be explained by target expectancy. Electrophysiological evidence for attentional suppression is likely due to individual differences in visual search scan paths.

Keywords:
Attentionattentional captureattentional suppression

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Related Experiment Videos

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Attention

Background:

  • The signal suppression hypothesis suggests attentional suppression prevents salient distractors from capturing visual attention.
  • This hypothesis has been supported by behavioral and electrophysiological evidence.

Purpose of the Study:

  • To critically evaluate the signal suppression hypothesis.
  • To propose alternative explanations for the observed effects attributed to attentional suppression.

Main Methods:

  • Theoretical analysis of the signal suppression hypothesis.
  • Re-evaluation of existing electrophysiological data on visual attention.

Main Results:

  • Attentional suppression is argued to be a dispensable mechanism.
  • Effects attributed to attentional suppression can be explained by reduced target expectancy.
  • Electrophysiological evidence for attentional suppression is considered spurious, potentially reflecting individual scan paths.

Conclusions:

  • The signal suppression hypothesis faces significant theoretical and empirical challenges.
  • Alternative explanations, such as target expectancy, provide a more parsimonious account of attentional effects.
  • The validity of electrophysiological markers for attentional suppression requires further investigation, considering potential confounds like scan paths.