Validation of the Executive Function Route-Finding Task (EFRT) in People with Mild Cognitive Impairment

Area of Science:

• Neuroscience
• Psychology
• Gerontology

Background:

• Mild cognitive impairment (MCI) affects executive functions, impacting daily living.
• Developing sensitive tools to assess executive function deficits in MCI is crucial for early intervention.

Purpose of the Study:

• To examine the reliability and validity of the Executive Function Route-finding Task (EFRT) in individuals with MCI.
• To compare EFRT performance between individuals with MCI and healthy controls.

Main Methods:

• Twenty-three individuals with MCI and 23 healthy controls participated.
• The EFRT was administered alongside other executive function tests, including the Executive Interview and Executive Functions Performance Test (EFPT).
• Inter-rater reliability, construct validity, and concurrent validity were assessed.

Main Results:

• The EFRT demonstrated high inter-rater reliability.
• Healthy controls significantly outperformed the MCI group on all executive function tests, supporting EFRT's construct validity.
• Concurrent validity was partially supported by correlations between EFRT and an EFPT subtest.

Conclusions:

• The EFRT is a reliable and valid tool for assessing executive functions in individuals with mild cognitive impairment.
• Further research is needed to determine the clinical significance of EFRT findings in MCI.