More than just perception–action recalibration: Walking through a virtual environment causes rescaling of perceived space
| Autor: | Jacob B. Freiberg, Jonathan W. Kelly, Lisa S. Donaldson, Lori A. Sjolund |
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| Rok vydání: | 2013 |
| Předmět: |
Linguistics and Language
Visual perception media_common.quotation_subject Experimental and Cognitive Psychology Optic Flow Walking Space (commercial competition) Virtual reality computer.software_genre Affect (psychology) Language and Linguistics Judgment User-Computer Interface Young Adult Perception Humans Size Perception media_common Distance Perception Hand Sensory Systems Action (philosophy) Virtual machine Space Perception Sensory Deprivation Percept Psychology computer Social psychology Psychomotor Performance |
| Zdroj: | Attention, Perception, & Psychophysics. 75:1473-1485 |
| ISSN: | 1943-393X 1943-3921 |
| DOI: | 10.3758/s13414-013-0503-4 |
| Popis: | Egocentric distances in virtual environments are commonly underperceived by up to 50 % of the intended distance. However, a brief period of interaction in which participants walk through the virtual environment while receiving visual feedback can dramatically improve distance judgments. Two experiments were designed to explore whether the increase in postinteraction distance judgments is due to perception-action recalibration or the rescaling of perceived space. Perception-action recalibration as a result of walking interaction should only affect action-specific distance judgments, whereas rescaling of perceived space should affect all distance judgments based on the rescaled percept. Participants made blind-walking distance judgments and verbal size judgments in response to objects in a virtual environment before and after interacting with the environment through either walking (Experiment 1) or reaching (Experiment 2). Size judgments were used to infer perceived distance under the assumption of size-distance invariance, and these served as an implicit measure of perceived distance. Preinteraction walking and size-based distance judgments indicated an underperception of egocentric distance, whereas postinteraction walking and size-based distance judgments both increased as a result of the walking interaction, indicating that walking through the virtual environment with continuous visual feedback caused rescaling of the perceived space. However, interaction with the virtual environment through reaching had no effect on either type of distance judgment, indicating that physical translation through the virtual environment may be necessary for a rescaling of perceived space. Furthermore, the size-based distance and walking distance judgments were highly correlated, even across changes in perceived distance, providing support for the size-distance invariance hypothesis. |
| Databáze: | OpenAIRE |
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