2010 Fiscal Year Final Research Report

A study of the template for detecting contrast in the human visual system

Research Project

Project/Area Number	20530655
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Experimental psychology
Research Institution	Iwate University
Principal Investigator	AKUTSU Hiromi Iwate University, 教育学部, 教授 (10374860)
Research Collaborator	KUSANO Tsutomu 東京大学, インテリジェント・モデリング・ラボラトリー, 特任研究員 CHIDA Akira 高砂香料株式会社, 研究員 DENNIS M.Levi University of California Berkeley, School of Optometry, Professor STANLEY A.Klein University of California Berkeley, School of Optometry, Professor
Project Period (FY)	2008 – 2010
Keywords	実験系心理学 / 認知科学 / 視覚
Research Abstract	To understand the mechanisms of contrast detection in human visual system, we investigated the characteristics of the template for detecting contrast patterns. A detection template in the spatial frequency domain was similar to a test pattern when uniform noises were added to the test pattern. When a step function noises were added to a test pattern, the template of observers were skewed to a higher contrast area of the noise frequencies. The effect of learning was limited in changing the shape of the template, and there were individual differences.

(2 results)