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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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Published on: July 16, 2015

Interoceptive awareness declines with age.

Sahib S Khalsa1, David Rudrauf, Daniel Tranel

  • 1Department of Neurology and Neuroscience Program, University of Iowa, Iowa City, IA, USA. skhalsa@mednet.ucla.edu.

Psychophysiology
|July 16, 2009
PubMed
Summary
This summary is machine-generated.

Aging impairs interoception, the ability to sense internal bodily states. This study found that older adults have a reduced capacity for heartbeat detection, indicating a decline in interoceptive awareness with age.

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Area of Science:

  • Neuroscience
  • Gerontology
  • Physiology

Background:

  • Aging is known to increase sensory thresholds for external stimuli.
  • The impact of aging on internal sensory awareness (interoception) is less understood.
  • Previous research has focused more on exteroception and proprioception.

Purpose of the Study:

  • To investigate the relationship between aging and interoceptive awareness.
  • To determine if the ability to sense one's heartbeat declines with age.
  • To quantify the association between age and heartbeat detection accuracy.

Main Methods:

  • Recruited 59 participants aged 22 to 63 years.
  • Assessed interoceptive awareness using heartbeat detection tasks at rest.
  • Analyzed the predictive relationship between age and heartbeat detection accuracy.

Main Results:

  • A significant inverse association was found between age and heartbeat detection ability.
  • Age accounted for approximately 30% of the variance in heartbeat detection accuracy.
  • Body mass index and sex did not significantly influence heartbeat detection.

Conclusions:

  • Interoception, like other sensory modalities, declines with advancing age.
  • Heartbeat sensing ability serves as a reliable index for age-related changes in interoception.
  • These findings highlight a previously underappreciated aspect of sensory decline in aging.