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Related Experiment Video

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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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Cognitive processes in aging effects on attentional alerting.

Hadas Erel1, Alon Zivony2, Daniel A Levy1

  • 1The Interdisciplinary Center Herzliya, Herzliya, Israel.

Neurobiology of Aging
|May 8, 2020
PubMed
Summary
This summary is machine-generated.

Older adults show reduced benefit from visual alerting cues but use auditory alerting cues effectively. This suggests cognitive, not just neuromodulatory, changes impact age-related attention decline.

Keywords:
AgingAlertingAttentionAuditoryOrienting

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Area of Science:

  • Cognitive Neuroscience
  • Human Aging Research
  • Psychology of Attention

Background:

  • Alerting, crucial for vigilance and task performance, declines with age.
  • Age-related alerting decline is often linked to noradrenergic signaling changes.
  • It is unclear if aging affects all alerting cues equally or if predictivity matters.

Purpose of the Study:

  • To investigate age-related differences in using various alerting cues.
  • To determine if cue predictivity influences age effects on alerting.
  • To explore the cognitive versus neuromodulatory basis of age-related alerting decline.

Main Methods:

  • 135 younger and 103 older adults completed three versions of the Attention Networks Test.
  • Tests used spatially nonpredictive visual, predictive visual, and predictive auditory cues.
  • Alerting effects were analyzed based on cue type and spatial predictivity.

Main Results:

  • Older adults showed less benefit from visual alerting cues compared to younger adults.
  • Older adults utilized spatially predictive auditory alerting cues as effectively as younger adults.
  • Cue spatial predictivity did not alter the observed age-related differences in alerting.

Conclusions:

  • Aging effects on alerting are heterogeneous, varying by cue modality.
  • The findings suggest cognitive factors may play a more significant role than previously thought in age-related alerting decline.
  • Auditory alerting may be a more preserved function in older adults.