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Related Experiment Videos

Breaking the waves: age differences in electrical brain activity when reading text with distractors.

Natalie A Phillips1, Dayle Lesperance

  • 1Centre for Research in Human Development, Department of Psychology, Concordia University, Montréal, Québec, Canada. phillip@vax2.concordia.ca

Psychology and Aging
|March 19, 2003
PubMed
Summary

Older adults struggle more with ignoring distracting words while reading due to declining inhibitory processes. This age-related difficulty impacts memory and reading comprehension.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Gerontology

Background:

  • Age-related cognitive decline affects inhibitory control.
  • Understanding age differences in processing irrelevant information is crucial.

Purpose of the Study:

  • To investigate age-related differences in ignoring task-irrelevant information during reading.
  • To examine the role of inhibitory processes in reading comprehension for older adults.

Main Methods:

  • Participants read target sentences with distractor words, instructed to ignore distractors.
  • N400 event-related potential (ERP) measured semantic processing of target and distractor information.
  • Correlated memory for target information with distraction susceptibility and inhibition efficiency in older adults.

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Main Results:

  • Younger adults processed both target and distractor words semantically.
  • Older adults' online sentence processing was disrupted by distractor words.
  • Reduced inhibition efficiency and increased susceptibility to distraction were linked to memory performance in older adults.

Conclusions:

  • Older adults exhibit greater difficulty ignoring irrelevant information during reading compared to younger adults.
  • Age-related decline in inhibitory control significantly impacts reading comprehension.
  • Findings have implications for understanding working memory and resource capacity in aging.