Assessing Visuospatial Abilities in Healthy Aging: A Novel Visuomotor Task

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Factors

Background:

• Visuospatial abilities are crucial for daily functioning and can decline with age.
• Existing tasks may confound visuospatial and visuomotor demands.
• A novel task is needed to isolate and assess visuospatial skills across adulthood.

Purpose of the Study:

• To evaluate a novel reaching-and-grasping task for assessing adult visuospatial abilities.
• To investigate the impact of visuospatial complexity on task performance.
• To compare visuospatial performance between young and older adults.

Main Methods:

• Participants (young: 18-25 years; older: 60-82 years) replicated complex models using building blocks.
• Task complexity was manipulated independently for visuospatial and visuomotor components.
• Measures included task completion time, hand use patterns, and mental rotation/spatial visualization.

Main Results:

• Task completion time increased with higher mental rotation complexity.
• Hand use patterns varied with model complexity, with greater right-hand use for simpler models.
• Older adults' performance, relative to task demands, was comparable to younger adults, suggesting preserved spatial abilities.

Conclusions:

• The novel reaching-and-grasping task effectively differentiates visuospatial abilities.
• Spatial abilities appear to be preserved in older adults, despite slower overall task performance.
• This task is suitable for studying developmental, sex-based, and pathology-based differences in visuomotor spatial skills.