Two Reference Frames for Visual Perception in Two Gravity Conditions
| Autor: | M. Lipshits, Guy Cheron, Ana Bengoetxea, Joseph McIntyre |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Male
Visual perception Computer science media_common.quotation_subject Experimental and Cognitive Psychology Frame of reference 050105 experimental psychology 03 medical and health sciences 0302 clinical medicine Artificial Intelligence Orientation Perception Psychophysics Reaction Time Humans 0501 psychology and cognitive sciences Computer vision Perceptual Distortion Weightlessness Simulation media_common Analysis of Variance Communication business.industry 05 social sciences Oblique case Space Flight Sensory Systems Ophthalmology Visual Perception Female Oblique effect Artificial intelligence Cues business Photic Stimulation 030217 neurology & neurosurgery Gravitation Reference frame |
| Zdroj: | Perception. 34:545-555 |
| ISSN: | 1468-4233 0301-0066 |
| DOI: | 10.1068/p5358 |
| Popis: | The processing and storage of visual information concerning the orientation of objects in space is carried out in anisotropic reference frames in which all orientations are not treated equally. The perceptual anisotropies, and the implicit reference frames that they define, are evidenced by the observation of ‘oblique effects’ in which performance on a given perceptual task is better for horizontally and vertically oriented stimuli. The question remains how the preferred horizontal and vertical reference frames are defined. In these experiments cosmonaut subjects reproduced the remembered orientation of a visual stimulus in 1g (on the ground) and in 0g, both attached to a chair and while free-floating within the International Space Station. Results show that while the remembered orientation of a visual stimulus may be stored in a multimodal reference frame that includes gravity, an egocentric reference is sufficient to elicit the oblique effect when all gravitational and haptic cues are absent. |
| Databáze: | OpenAIRE |
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