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Visual and haptic representations of scenes are updated with observer movement
Achille Pasqualotto1, Ciara M Finucane, Fiona N Newell
1Department of Psychology, Institute of Neuroscience, University of Dublin, Trinity College, Dublin 2, Ireland.
Experimental Brain Research
|July 22, 2005
Summary
Observer movement aids scene recognition by compensating for orientation changes. This spatial updating effect was found to apply to both visual and haptic recognition, demonstrating cross-modal spatial learning.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human-Computer Interaction
Background:
- Scene recognition is sensitive to observer-scene orientation.
- Observer movement can compensate for orientation changes in visual scenes via spatial updating.
- The influence of learning modality on spatial updating in scene recognition is not well understood.
Purpose of the Study:
- To investigate if spatial updating in scene recognition is affected by the encoding or learning modality.
- To examine if observer movement can compensate for orientation changes in haptic scene recognition.
Main Methods:
- Experiment 1: Replicated observer movement effects on visual scene recognition.
- Experiment 2: Assessed haptic scene recognition using touch alone, with and without observer movement.
- Utilized identical apparatus for both visual and haptic experiments.
Main Results:
- A cost in recognition performance was observed with changes in scene orientation in the haptic modality.
- Observer movement eliminated the recognition cost associated with orientation changes in haptic scenes.
- Spatial updating effects were confirmed in both visual and haptic recognition.
Conclusions:
- Spatial updating is a cross-modal phenomenon applicable to both visual and haptic scene recognition.
- Observer movement facilitates scene recognition by enabling spatial updating, regardless of sensory modality.
- Both visual and haptic modalities intrinsically encode spatial scene properties, supporting spatial updating.