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A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets
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Global interference and spatial uncertainty in the Sustained Attention to Response Task (SART).

William S Helton1, Lena Weil, Annette Middlemiss

  • 1Department of Psychology, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. Deak_Helton@yahoo.com

Consciousness and Cognition
|February 9, 2010
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Summary

The Sustained Attention to Response Task (SART) measures response strategy rather than attention lapses. Global interference and spatial uncertainty did not impact SART reaction times, challenging its use for measuring mindlessness.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psychometric Evaluation

Background:

  • The Sustained Attention to Response Task (SART) is a widely used tool to assess sustained attention and detect mindlessness.
  • Investigating factors influencing SART performance is crucial for understanding its validity and limitations.

Purpose of the Study:

  • To evaluate the impact of global interference and spatial uncertainty on SART performance.
  • To determine if the SART accurately measures lapses in sustained attention or mindlessness.

Main Methods:

  • Ten participants completed a high-Go SART or a low-Go task with spatially certain and uncertain signals.
  • Performance metrics, including reaction time and error rates, were analyzed under varying interference and uncertainty conditions.

Main Results:

  • SART reaction time remained unaffected by global interference and spatial uncertainty.
  • Conversely, reaction time in the low-Go task was sensitive to these factors.
  • Spatial uncertainty led to increased omission errors in the SART, contrary to mindlessness predictions.
  • A significant correlation was observed between commission errors and reaction time in the SART.

Conclusions:

  • The SART appears to be a more sensitive measure of response strategy than of sustained attention lapses or mindlessness.
  • Findings suggest a need to reconsider the interpretation of SART performance, particularly regarding its utility in assessing mindlessness.
  • Future research should further explore the psychometric properties of the SART and its relationship with cognitive control mechanisms.