The effect of visual and interaction fidelity on spatial cognition in immersive virtual environments

Area of Science:

• Cognitive Psychology
• Human-Computer Interaction
• Virtual Reality

Background:

• Memory performance alone does not fully capture cognitive processes.
• Awareness states during memory retrieval are crucial but understudied.
• Immersive virtual environments (IVEs) offer novel ways to study cognition.

Purpose of the Study:

• To investigate how visual and interaction fidelity in IVEs affect memory awareness states.
• To determine if rendering quality influences object recognition and retrieval awareness.
• To explore the relationship between environmental fidelity and mental imagery during memory recall.

Main Methods:

• A between-groups experiment using immersive virtual environments.
• Two rendering conditions: flat-shaded (low fidelity) and radiosity (high fidelity).
• Participants used a head-tracked Head Mounted Display for a recognition memory task.

Main Results:

• Memory performance did not differ significantly between rendering conditions.
• Awareness states varied across conditions, indicating an effect on retrieval processes.
• A higher proportion of recollections involving mental imagery occurred in the flat-shaded condition.

Conclusions:

• Visual fidelity in IVEs influences memory awareness states, particularly mental imagery.
• Lower fidelity environments may promote more vivid mental imagery during memory retrieval.
• Findings suggest a dissociation between memory performance and the subjective experience of remembering.