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Related Experiment Videos

Distraction as a determinant of processing speed.

Cindy Lustig1, Lynn Hasher, Simon T Tonev

  • 1Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor 48109-1043, USA. clustig@umich.edu

Psychonomic Bulletin & Review
|January 5, 2007
PubMed
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Distraction impacts cognitive processing speed, especially in older adults. Reducing task distractions improved older adults' performance, suggesting attentional control is key for accurate speed assessments.

Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Human development

Background:

  • Processing speed is a key cognitive resource linked to intelligence and development.
  • Standard speed tests often present numerous items simultaneously, potentially confounding results.
  • Distractibility is common in populations with slowed processing.

Purpose of the Study:

  • To investigate the impact of reduced distraction on cognitive processing speed tasks.
  • To compare performance differences between younger and older adults under varying distraction levels.

Main Methods:

  • Two classic speed tasks were administered to younger and older adults.
  • Tasks were presented in both high-distraction (standard) and low-distraction formats.
  • Performance metrics were analyzed to assess the effect of distraction.

Related Experiment Videos

Main Results:

  • Reducing distraction significantly improved older adults' performance on speed tasks.
  • Younger adults showed minimal to no performance change with reduced distraction.
  • Attentional control appears to be a critical factor influencing processing speed measures.

Conclusions:

  • The ability to filter irrelevant information affects processing speed assessment.
  • Standardized speed tests may overestimate processing speed deficits in distractible populations.
  • Future research should consider attentional demands in cognitive speed evaluations.