[The Visual Association Test to study episodic memory in clinical geriatric psychology]

Area of Science:

• Neuroscience
• Gerontology
• Psychology

Background:

• Neurocognitive disorders present a significant challenge in geriatric care.
• Accurate and accessible diagnostic tools are crucial for early intervention.
• The Visual Association Test (VAT) is a novel assessment tool for cognitive function.

Purpose of the Study:

• To evaluate the effectiveness of the Visual Association Test (VAT) in identifying neurocognitive disorders in a psychogeriatric population.
• To assess the correlation between VAT performance and other cognitive assessments.
• To determine the sensitivity and specificity of VAT for diagnosing major neurocognitive disorder.

Main Methods:

• Administered the Visual Association Test (VAT) to 174 participants with mild to major neurocognitive disorder.
• Compared VAT performance with normative data from non-demented subjects.
• Correlated VAT scores with the Cognitive Screening Test (CST) and executive functioning tests.
• Utilized hierarchical multiple regression and Bayesian probability tables for analysis.

Main Results:

• 69% of participants scored within the range of major deficit on the VAT.
• VAT scores showed a significant positive correlation with CST scores (r = 0.53).
• Executive functioning tests did not significantly add to the explanation of variance in VAT scores.
• The VAT demonstrated a linear trend across CST scores, indicating no significant floor or ceiling effects.

Conclusions:

• The Visual Association Test (VAT) is a sensitive and specific tool for detecting major neurocognitive disorder in older adults.
• VAT performance is strongly associated with overall memory function as measured by the CST.
• The VAT offers a visually engaging and effective alternative to traditional memory tasks for cognitive assessment.