Boston Naming Test in Alzheimer's disease

Area of Science:

• Neuropsychology
• Neurology
• Cognitive Science

Background:

• The Boston Naming Test (BNT) is a standard tool for assessing confrontation naming.
• Accurate and efficient assessment is crucial for diagnosing Alzheimer's disease (AD) and other dementias.
• Shortened versions of the BNT may improve screening efficiency.

Purpose of the Study:

• To evaluate the effectiveness of shortened versions of the Boston Naming Test (BNT) for screening Alzheimer's disease (AD).
• To compare the performance of AD patients, normal controls (NC), and other dementia (OD) subjects on shortened BNT versions.
• To develop a rapid screening tool for confrontation-naming deficits.

Main Methods:

• Administered the 60-item BNT to 55 subjects: 15 probable AD, 15 NC, and 25 OD.
• Developed and validated three 30-item shortened BNT versions (Even, Odd, Empirical).
• Analyzed classification accuracy and inter-version correlations.

Main Results:

• A cutting score of 51 on the full BNT correctly classified 80% of AD patients and 86% of NC subjects.
• Shortened Even and Odd versions showed high correlations with the full BNT and were equivalent across groups.
• The Empirical version, derived from AD and NC performance, largely maintained intergroup discrimination.

Conclusions:

• Shortened BNT versions provide a valid and efficient method for screening confrontation-naming deficits in individuals with probable AD and other dementias.
• These shortened versions facilitate rapid assessment, aiding in early detection and diagnosis.
• The developed screening tools maintain significant diagnostic power compared to the full BNT.