1. Efeitos da Perspectiva na Amplificação dos Tamanhos de Objetos que Interceptam a Linha do Horizonte.
- Author
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Torro-Alves, Nelson, do Vale Ferreira, Adriana, Bernardino, Leonardo Gomes, and Fukusima, Sérgio Sheiji
- Subjects
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VISUAL perception , *VISUAL learning , *ESTIMATION theory , *DATA mining , *PROMPTS (Psychology) - Abstract
We investigated the effects of texture gradient and the position of test stimulus in relation to the horizon on the perception of relative sizes. By using the staircase method, 50 participants adjusted the size of a bar presented above, below or on the horizon as it could be perceived in the same size of a bar presented in the lower visual field. Stimuli were presented during 100ms on five background conditions. Perspective gradient contributed more to the overestimation of relative sizes than compression gradient. The sizes of the objects which intercepted the horizon line were overestimated. Visual system was very effective in extracting information from perspective depth cues, making it even during very brief exposure. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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