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Current perception thresholds in ageing.

E R Evans1, M S Rendell, J P Bartek

  • 1Creighton University Geriatric Center, Omaha, NE 68131.

Age and Ageing
|July 1, 1992
PubMed
Summary
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Age does not affect sensory perception. Current perception threshold (CPT) testing, an objective measure, is not impacted by aging, making it a reliable tool for assessing neuropathy.

Area of Science:

  • Neurology
  • Gerontology
  • Diabetology

Background:

  • Aging can affect sensory perception, potentially complicating the assessment of neurological conditions.
  • Diabetic neuropathy is a common complication that impairs sensory function.

Purpose of the Study:

  • To investigate the impact of age on sensory perception using Current Perception Threshold (CPT) testing.
  • To determine if CPT is a reliable objective measure for sensory function, independent of age.

Main Methods:

  • Neurological examinations and sensory testing (light touch, pain, vibration, thermal) were performed on healthy young/elderly and diabetic young/elderly subjects.
  • Current Perception Threshold (CPT) testing was conducted at multiple anatomical sites.
  • Symptom scores (SS) and physical scores (PS) were used to quantify clinical diabetic neuropathy severity.

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Main Results:

  • CPT did not significantly differ between young and old healthy subjects, indicating age does not impair current perception.
  • Older diabetic patients exhibited higher CPTs than younger diabetic patients, correlating with greater neuropathy severity.
  • CPT results correlated more strongly with the degree of diabetic neuropathy (r=0.47-0.60) than with age (r=0.12).

Conclusions:

  • Current perception does not decline with age.
  • Aging alone does not worsen CPT values in individuals with neuropathy.
  • CPT testing is a clinically applicable, objective sensory measure unaffected by the aging process.