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Utility of a Short-Form Phonemic Fluency Task.

Jack R Kaufman1, Hudaisa Fatima1, Laura H Lacritz2

  • 1Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA.

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|March 22, 2024
PubMed
Summary
This summary is machine-generated.

A brief 30-second phonemic fluency test reliably screens older adults for cognitive impairment. This short-form measure effectively distinguishes between normal cognition and cognitive impairment groups.

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Area of Science:

  • Neurology
  • Cognitive Science
  • Gerontology

Background:

  • Cognitive screening tools are crucial for early detection of cognitive impairment in older adults.
  • Phonemic fluency tasks assess verbal productivity and executive functions.
  • Abbreviated cognitive tests are needed for efficient clinical assessment.

Purpose of the Study:

  • To establish proof-of-concept for a 30-second phonemic fluency measure.
  • To determine the reliability and diagnostic accuracy of this abbreviated tool in older adults.

Main Methods:

  • 201 older adults (119 normal cognition, 82 cognitive impairment) completed a 60-second phonemic fluency task (FAS/CFL) with 30-second intervals.
  • Performance on 30-second trials was compared to 60-second totals.
  • Receiver operating characteristic (ROC) analyses were used to assess diagnostic accuracy.

Main Results:

  • 30-second trial scores strongly predicted 60-second scores (R2 = 0.7-0.9, p < .001).
  • Cumulative 30-second scores significantly differed between normal cognition and cognitive impairment groups (p < .001).
  • 30-second scores showed comparable accuracy (AUC = 0.675) to 60-second scores (AUC = 0.658) in distinguishing groups.

Conclusions:

  • A 30-second phonemic fluency test is a reliable and valid cognitive screening tool for older adults.
  • This short-form paradigm efficiently differentiates individuals with and without cognitive impairment.
  • The findings support the utility of abbreviated phonemic fluency tasks in clinical settings.