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Updated: May 31, 2026
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The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
Published on: October 13, 2016
[Landscape test for assessing visual memory in Alzheimer's disease]
Cinta Valls-Pedret1, Jaume Olives, Beatriz Bosch
1Unidad de Alzheimer y otrostrastornos cognitivos, Serviciode Neurología, Instituto de Neurociencias, Hospital Clínici Universitari, Barcelona, España.
Revista De Neurologia
|June 17, 2011
Summary
A new visual memory test, the landscapes test, effectively identifies early Alzheimer's disease (AD). This simple tool shows significant differences in visual memory recall between AD patients and healthy controls.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Gerontology
Context:
- Visual episodic memory impairment is an early indicator in Alzheimer's disease (AD).
- Existing memory assessments may involve verbal components, potentially confounding results in early AD stages.
- There is a need for non-verbal, sensitive tools to assess visual memory deficits.
Purpose:
- To develop and validate a non-verbal visual memory test (landscapes test).
- To establish normative data for the landscapes test in the Spanish elderly population.
- To evaluate the test's ability to differentiate between individuals with mild AD and healthy controls.
Summary:
- The landscapes test, featuring 25 landscape photographs, assesses recognition memory after a 5-minute delay.
- A study of 263 participants (126 mild AD patients, 137 controls) demonstrated significant differences in test scores between groups (AD: 34.25 ± 6.6 vs. Control: 44.06 ± 3.2, p < 0.001).
- Statistical analyses included t-tests, ANCOVA, regression, correlation, and ROC curve analysis.
Impact:
- The landscapes test is a simple, sensitive, and novel instrument for detecting early visual memory decline in Alzheimer's disease.
- The test achieved an area under the ROC curve of 0.904, with 82% sensitivity and 85% specificity.
- Findings support the use of the landscapes test for early AD detection and monitoring in clinical and research settings.
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