"RIV/68081740:_____/08:00340330!RIV10-AV0-68081740" . "visual space perception; metric and non-metric perceptual judgments; ecological validity"@en . "\u0160ime\u010Dek, Michal" . . . "Experiential space is hardly metric"@en . "\u0160ikl, Radovan" . "Experiential space is hardly metric" . . . . . . "RIV/68081740:_____/08:00340330" . . . . "[342F30152A8E]" . "Experiential space is hardly metric" . "In real-life conditions, an observer is only rarely required to metrically estimate spatial relations within the environment. In the conditions of psychophysical experiment, however, the observer is typically confronted with metric tasks (eg, magnitude estimation, matching, blind walking). Such tasks place too high requirements on the observers causing judgments in the experiments on visual space perception to be rather imprecise. Moreover, observers become less confident about their answers and their answers are frequently contaminated by artefacts (knowledge and memories). Less demanding perceptual tasks in experiments are expected to avoid sophisticated heuristics and lead to obtaining ecologically valid data. To test this prediction, we introduced a novel ordinal task in which the observers compared length intervals so that they ranked the distance of a number of objects from the reference point."@en . "In real-life conditions, an observer is only rarely required to metrically estimate spatial relations within the environment. In the conditions of psychophysical experiment, however, the observer is typically confronted with metric tasks (eg, magnitude estimation, matching, blind walking). Such tasks place too high requirements on the observers causing judgments in the experiments on visual space perception to be rather imprecise. Moreover, observers become less confident about their answers and their answers are frequently contaminated by artefacts (knowledge and memories). Less demanding perceptual tasks in experiments are expected to avoid sophisticated heuristics and lead to obtaining ecologically valid data. To test this prediction, we introduced a novel ordinal task in which the observers compared length intervals so that they ranked the distance of a number of objects from the reference point." . . . "Lukavsk\u00FD, Ji\u0159\u00ED" . "3"^^ . "Experiential space is hardly metric"@en . "367131" . . . . . "3"^^ . "P(GA406/07/1676), Z(AV0Z70250504)" . . . .