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Related Experiment Video

Updated: Jan 19, 2026

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
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Relationship between cognitive processing, language and verbal fluency among elderly individuals.

Helen Capeleto Francisco1, Allan Gustavo Brigola1, Ana Carolina Ottaviani1

  • 1Federal University of São Carlos Graduate Program in Nursing São CarlosSP Brazil Federal University of São Carlos (UFSCar), Graduate Program in Nursing, São Carlos, SP, Brazil.

Dementia & Neuropsychologia
|September 27, 2019
PubMed
Summary

This study found that language skills in older adults correlate with brainwave (P300) timing, while verbal fluency relates to brainwave (P300) strength. These findings offer insights into cognitive processing in aging populations.

Keywords:
P300agingelderevent-related potentiallanguage

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Area of Science:

  • Neuroscience
  • Gerontology
  • Cognitive Psychology

Background:

  • Cognitive functions like attention and memory can decline with age.
  • However, other cognitive abilities may remain stable or improve with experience.

Purpose of the Study:

  • To investigate the links between cognitive processing, language, and verbal fluency in elderly individuals.
  • The study focused on participants receiving primary healthcare in São Paulo, Brazil.

Main Methods:

  • A quantitative, cross-sectional study involving 149 elderly individuals.
  • Data included sociodemographic information, the Addenbrooke's Cognitive Examination - Revised (ACE-R), and auditory P300 event-related potentials.
  • Statistical analysis involved descriptive statistics and Spearman's correlation.

Main Results:

  • Language abilities showed a negative correlation with P300 latency.
  • Verbal fluency demonstrated a positive correlation with P300 amplitude.
  • Specific language tasks like comprehension and naming correlated negatively with latency, while repetition correlated positively with amplitude.

Conclusions:

  • Language skills are associated with P300 latency in the elderly.
  • Verbal fluency is linked to P300 amplitude.
  • Further research is recommended to confirm these correlations.