Auditory confrontation naming in Alzheimer's disease

Area of Science:

• Neuroscience
• Psycholinguistics
• Gerontology

Background:

• Naming is a core language function typically assessed via visual confrontation.
• Auditory naming tasks offer a novel approach, potentially beneficial for visually impaired individuals and sensitive to Alzheimer's disease (AD).

Purpose of the Study:

• To develop and evaluate an auditory naming task for assessing cognitive function.
• To investigate the utility of auditory naming in differentiating Alzheimer's disease (AD) patients from cognitively normal elderly individuals.
• To explore the task's applicability for visually impaired populations.

Main Methods:

• Development of an auditory naming task involving identification of environmental sounds (e.g., animal calls, instruments, vehicles).
• Inclusion of a multiple-choice recognition component for unidentified sounds.
• Comparison of performance between mild-to-moderate Alzheimer's disease (AD) patients and cognitively normal elderly controls in two studies.
• Correlation analysis with Mini-Mental State Exam (MMSE) scores and Receiver Operating Characteristic (ROC) analysis for diagnostic accuracy.

Main Results:

• Mild-to-moderate Alzheimer's disease (AD) patients performed significantly worse than controls on the auditory naming task.
• The auditory task proved more challenging than comparable visual naming tasks and showed a stronger correlation with MMSE scores.
• While internal consistency was acceptable, ROC analysis indicated auditory naming was slightly less effective than visual confrontation naming in discriminating AD patients.

Conclusions:

• The developed auditory naming task shows promise as a clinical and research tool, particularly for assessing Alzheimer's disease (AD).
• Its utility is especially noted for visually impaired patients, offering an alternative assessment method.
• Further research may refine its diagnostic capabilities, potentially complementing existing visual-based assessments.