Sensorial functions involved in the visual judgment by psychophysical scaling

• Grant number: 13/04049-4
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2013
• End date: June 30, 2015
• Field of knowledge: Humanities - Psychology - Physiological Psychology
• Principal Investigator: Marcelo Fernandes da Costa
• Grantee: Marcelo Fernandes da Costa
• Host Institution: Instituto de Psicologia (IP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated researchers: Andre Russowsky Brunoni ; Balazs Vince Nagy

Abstract

We are proposing a series of experiments aimed at the study of how characteristics of stimulation and sensory physiology to basic aspects of visual processing, influence the trial psychophysical scaling, mainly by direct magnitude estimation. The project is divided into three large blocks of experiments: experiments called basic, whose objectives are to address how basic sensory elements for spatial vision such as contrast and spatial resolution can interfere with judgments to simple stimuli, such as lines and circles; experiments called exploration methodology, in which we seek to experimentally manipulate such factors as reference values, inducing sensations as size inducing distance and the third block proposed applications for these experiments seeking to study the judgment of visual stimuli in different classes of psychological illnesses and visual development, such major depression, in partnership with the University Hospital of USP in amblyopia and in subjects with low vision by different eye conditions. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

COSTA, MARCELO FERNANDES; GADDI, CARLO MARTINS. A power law study of the edge influence on the perceived filling-in brightness magnitude. PSICOLOGIA-REFLEXAO E CRITICA, v. 32, n. 1, SEP 18 2019. (13/04049-4)