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Cue predictability does not modulate bottom-up attentional capture.

Erik L Meijs1,2, Felix H Klaassen2, Levan Bokeria2

  • 1Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, 6500 HB Nijmegen, The Netherlands.

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|November 27, 2018
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Summary
This summary is machine-generated.

Prior expectations do not influence bottom-up attention. This study found that attentional capture by salient stimuli is not affected by whether the stimulus is expected or surprising.

Keywords:
attentional capturebottom-up attentionexpectationpredictability

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Attention

Background:

  • Bottom-up attention is involuntarily captured by salient stimuli.
  • Salient stimuli typically appear unpredictably in time and space.
  • The role of prior expectations in bottom-up attention is not fully understood.

Purpose of the Study:

  • To investigate whether prior expectations modulate bottom-up attentional capture.
  • To determine if spatial or temporal expectations influence the degree of attentional capture.
  • To examine the relationship between cue expectation and attentional capture magnitude.

Main Methods:

  • Three behavioral experiments using an exogenous cueing task.
  • Systematic manipulation of participants' spatial and temporal expectations.
  • Measurement of attentional capture by uninformative cues.

Main Results:

  • Attentional capture by cues was observed in all experiments.
  • No significant modulation of attentional capture by prior spatial or temporal expectations.
  • The degree of cue expectation did not affect the amount of attentional capture.

Conclusions:

  • Bottom-up attentional capture is not modulated by prior expectations.
  • Expectation or surprise does not appear to influence the involuntary capture of attention by salient stimuli.
  • Findings suggest a robust, expectation-independent mechanism for bottom-up attention.