A virtual shopping test for realistic assessment of cognitive function

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Virtual Reality Applications

Background:

• Cognitive dysfunction after brain injury significantly impacts quality of life.
• Conventional neuropsychological tests precisely assess cognitive functions but lack real-world applicability.
• A Virtual Shopping Test (VST) using virtual reality was developed for holistic patient assessment.

Purpose of the Study:

• To determine the significance of the VST by comparing it with conventional tests.
• To assess the VST's applicability to patients with brain damage.
• To evaluate VST performance in relation to age differences.

Main Methods:

• Participants included 10 brain-damaged patients, 10 age-matched healthy controls, 10 older healthy adults, and 10 younger healthy adults.
• The Virtual Shopping Test (VST) and neuropsychological assessments were administered.
• VST evaluation metrics included items bought correctly, hints needed, shop movements, and total time.

Main Results:

• VST variables correlated with conventional assessments of attention and everyday memory.
• Brain-damaged patients required more hints and shop movements, and took longer than controls.
• Older adults took significantly longer to complete the VST than younger adults.

Conclusions:

• The VST is a valuable tool for evaluating attention and everyday memory in brain-damaged individuals.
• Age is a factor influencing VST completion time, with older individuals taking longer.