Pinto P D, Nascimento S M C, Foster D H, Amano K, 2004, "Eye movements in natural environments and with their CRT representations" Perception 33 ECVP Abstract Supplement
Eye movements in natural environments and with their CRT representations
P D Pinto, S M C Nascimento, D H Foster, K Amano
Are eye movements recorded in laboratory conditions with CRT display devices representative of data obtained outdoors in natural conditions? This question was addressed here by comparing eye movements for data recorded in outdoors, stationary, urban and rural environments with data obtained from observers viewing representations of the same scenes on a colour monitor in the laboratory. Eye-position data were recorded in both viewing conditions with a modified infrared xy-gaze-tracking device. The chromatic specification of the monitor images was obtained from hyperspectral data recorded at the same time as the outdoors eye-movement measurements (Nascimento et al, 2003 Perception 32 Supplement, 110). In both conditions, observers were instructed to look at the scene for 5 min so that they could answer a question about its composition afterwards. Eye-position data were analysed for speed and spatial distribution, and in relation to the chromaticity and luminance of the images. We found that, although the distribution of velocities was slightly different between the two viewing conditions, with larger values obtained for outdoors measurements the spatial patterns were similar, suggesting little influence of overall luminance and three-dimensionality.
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