Memory and visual search in naturalistic 2D and 3D environments.

Area of Science:

• Cognitive Psychology
• Human-Computer Interaction
• Neuroscience

Background:

• The influence of memory on attention allocation in everyday tasks remains unclear.
• Previous research on memory's role in visual search using 2D images yielded inconsistent findings.
• Significant differences exist between controlled laboratory settings and real-world environments for stimulus context.

Purpose of the Study:

• To investigate the impact of memory on visual search performance in both 2D and 3D environments.
• To compare the utilization of spatial memory and incidental learning across different dimensional settings.
• To understand how environmental context influences attention guidance and learning during search tasks.

Main Methods:

• Development of a 3D immersive virtual apartment and a parallel 2D visual search experiment.
• Tracking of eye movements during repeated visual search tasks for geometric and contextual objects.
• Assessment of spatial memory through repeated searches and incidental learning via context object searches.

Main Results:

• Participants demonstrated better learning of room-target associations in the 3D environment compared to 2D.
• Experience led to a more focused gaze on relevant areas in both 2D and 3D settings.
• Search performance for local contextual objects was not improved by initial search experience; incidental fixations did not guarantee benefits.

Conclusions:

• Memory for global environmental features directs visual search by narrowing attention to probable locations.
• Task relevance dictates the learning derived from active search experiences.
• While 2D and 3D behaviors are similar, 3D environments elicit greater reliance on memory.