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ERIC Number: EJ844417
Record Type: Journal
Publication Date: 2005
Pages: 8
Abstractor: As Provided
Reference Count: 17
ISSN: ISSN-0211-2159
Visual Angle as Determinant Factor for Relative Distance Perception
Matsushima, Elton H.; de Oliveira, Artur P.; Ribeiro-Filho, Nilton P.; Da Silva, Jose A.
Psicologica: International Journal of Methodology and Experimental Psychology, v26 n1 p97-104 2005
Visual angles are defined as the angle between line of sight up to the mean point of a relative distance and the relative distance itself. In one experiment, we examined the functional aspect of visual angle in relative distance perception using two different layouts composed by 14 stakes, one of them with its center 23 m away from the observation point, and the other 36 m away from the observation point. Verbal reports of relative distance were grouped in 10 categories of visual angles. Results indicated visual angle as a determinant factor for perceived relative distance as observed in the absence of perceptual errors to distances with visual angle equal or larger than 70 degrees that could be attributed to a combination of sources of visual information. Another finding showed a possible intrusion of non-perceptual factors (observer's tendencies), leading to compressed estimates to relative distances with visual angles smaller than 70 degrees. (Contains 3 figures and 1 footnote.)
University of Valencia. Dept. Metodologia, Facultad de Psicologia, Avda. Blasco Ibanez 21, 46010 Valencia, Spain. Tel: +34-96-386-4100; Web site:
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Brazil