Is the Folstein's Mini-Mental test an aphasia test?

Area of Science:

• Neuropsychology
• Cognitive Assessment
• Neurology

Background:

• The Mini-Mental State Examination (MMSE) is a widely used dementia screening tool.
• The Brief Aphasia Evaluation (BAE) shares many items with the MMSE, particularly in orientation.
• Potential overlap raises questions about diagnostic accuracy for conditions like aphasia.

Purpose of the Study:

• To investigate the correlation between MMSE-like items within the BAE and the remaining BAE items.
• To determine if these MMSE-like BAE items can differentiate patients with left cerebral lesions (LC) from those with right cerebral lesions (RC) and healthy participants (HP).

Main Methods:

• A cohort of 109 right-handed participants (38 HP, 37 LC, 34 RC) was recruited.
• Groups were matched for gender, age, and education.
• Correlation and diagnostic accuracy (sensitivity/specificity) analyses were performed on BAE item performance.

Main Results:

• A strong correlation (.90) was found between MMSE-like BAE items and other BAE items (BAE-rest).
• MMSE-like items demonstrated high sensitivity and specificity (≥.81) in distinguishing LC patients from RC patients and HP.
• The findings suggest a significant overlap in cognitive domains assessed.

Conclusions:

• MMSE-like items within the BAE are highly correlated with other BAE components.
• These items possess diagnostic utility in differentiating between specific neurological conditions.
• There is a notable risk of misclassifying aphasia as dementia when relying solely on the MMSE.