Active, passive and snapshot exploration in a virtual environment: influence on scene memory, reorientation and path...

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human-Computer Interaction

Background:

• Spatial memory is crucial for navigation.
• Understanding how different exploration methods influence spatial memory is vital for designing effective virtual environments.

Purpose of the Study:

• To investigate the impact of active, passive, and snapshot exploration on spatial memory within a virtual city.
• To compare the effects of these exploration modes on scene recognition, reorientation, and path reproduction.

Main Methods:

• Participants explored a virtual city using three methods: active (joystick control with directions), passive (computer-controlled travel), and snapshot (sequential 2D scene views).
• Spatial memory was assessed via scene recognition, reorientation to the starting point, and drawing the path's shape.
• Travel velocity was consistent across all exploration conditions.

Main Results:

• Scene recognition and reorientation accuracy were not significantly affected by the exploration mode.
• Path shape reproduction accuracy was significantly lower in the snapshot exploration condition compared to active and passive exploration.
• No significant difference in path reproduction accuracy was found between active and passive exploration.

Conclusions:

• Spatial memory encoding differs based on exploration method.
• 2D visual features are memorized, supporting scene recognition.
• Path reproduction relies on deliberate reconstruction, with snapshot exploration impairing this process.
• Reorientation may depend on integrated motion duration or reference frames during displacement.