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Related Experiment Video

Updated: Mar 8, 2026

The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
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ALBA Screening Instrument (ASI): A brief screening tool for Lewy Body Dementia.

M M Garcia Basalo1, M C Fernandez2, M Ojea Quintana2

  • 1Neurology Department of Italian Hospital of Buenos Aires, Gascón 450, C1181ACH Buenos Aires, Argentina.

Archives of Gerontology and Geriatrics
|January 16, 2017
PubMed
Summary

A new screening tool, the ASI, effectively detects Lewy Body Dementia (LBD) with high accuracy. This accessible test aids in the early identification of LBD, crucial for patient care.

Keywords:
ASICognitive assessmentDementiaLewy Body DementiaScreening test

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Area of Science:

  • Neuroscience
  • Gerontology
  • Clinical Neurology

Background:

  • Early detection of neurodegenerative diseases is critical for effective patient management.
  • Current dementia screening tools are insufficient for specific conditions like Lewy Body Dementia (LBD).

Purpose of the Study:

  • To introduce a novel screening tool for the early detection of Lewy Body Dementia (LBD).
  • To develop a tool that is accessible for use by non-medical personnel.

Main Methods:

  • 427 participants (50-90 years) were categorized into healthy controls, Mild Cognitive Impairment (MCI), LBD, and other dementias.
  • A comprehensive neuropsychological and neuropsychiatric evaluation, alongside neuroimaging, was used for diagnosis.
  • Sensitivity and specificity of the Alzheimer's Screening Instrument (ASI) were determined to distinguish LBD.

Main Results:

  • The study evaluated 427 subjects, including 75 with LBD and 121 with other dementias.
  • The ASI demonstrated a high diagnostic accuracy, with a sensitivity of 90.7% and specificity of 93.6% for LBD detection.
  • An ASI cutoff score of 9 provided optimal performance in differentiating LBD from other cognitive conditions.

Conclusions:

  • The Alzheimer's Screening Instrument (ASI) is a valuable, brief tool for LBD screening.
  • The ASI exhibits high sensitivity and specificity, making it suitable for early LBD detection.
  • Its ease of use extends its utility to non-medical staff for preliminary LBD assessments.