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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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ERIC Number: ED045470
Record Type: RIE
Publication Date: 1970
Pages: 15
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Eye Noise and Map Design.
Merriam, Mylon
This paper describes the physiological "eye noise" effect of line contrast in maps and considers the effect of line contrast on the direct picture of terrain surface as produced by shaded relief. An attempt is made to describe map reading in its two major steps: 1) the enrichment of the brain image resulting from scanning the map sheet, and 2) the essential motion for the construction of map reading patterns. An experimental typographic map is proposed, with accompanying psychophysical scales, to study and control the eye noise effect. (Author/JLB)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: Army Topographic Command, Bethesda, MD.
Identifiers: Topographic Maps