Assessment of fusional reserves with interactive software: Dependence of results on left-right image separation method A Bolshakov1, N Vasiljeva2, M Gracheva1, G Rozhkova1 |
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1IITP Russ Acad Sci, Russian Federation |
| Fusional reserves were measured in 50 young adults using our original computer-aided method described earlier (Rozhkova and Vasiljeva, 2010 Human Physiology 36(3) 364-366) but somewhat modified. In a new series of measurements, the stimuli were generated on the 3D display making it possible to employ both color and polarization techniques of image separation in similar conditions and to assess the influence of separation method. Correspondingly, in one series of measurements, left and right images were presented in anaglyphic form; in another series, left and right images were presented on differently polarized rows of pixels. The results obtained with color separation techniques were similar to the results of our previous measurements using this method with another display. However, the results obtained with polarization techniques appeared to be significantly better as concerned critical values and reproducibility. For instance, in the histogram of convergent (base-out) fusional reserves obtained with polarization method, the main peak was found at 30-35deg whereas, with color method, the main peak corresponded to 15-20deg. This difference suggests that a significant difference in color between left and right images might exert essential negative effect on the functioning of fusion mechanisms. Supported by the Program of DNIT Russ Acad Sci. |
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