Two visual search experiments, one of which measured eye movements, show that material close to words on a map-like display has a proximity effect which prolongs the word recognition time. This effect is particularly pronounced if the material is a) very close to the first letter of the word, and b) of a similar size to the word, or component letters. Possible causes of the effect are discussed and the practical application for maps and other displays considered.
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References
1.
Bartz, B. S.Search: An approach to cartographic type legibility. Journal of Typographic Research, 1969, 3, 387–398.
2.
Bartz, B. S.Experimental use of the search task in an analysis of type legibility in cartography. Cartographic Journal, 1970, 7, 103–122.
3.
Bouma, H.Visual search and reading: Eye movements and functional visual fields. In J. Requin (Ed.). Attention and Performance VII, Hillsdale, NJ: Lawrence Erlbaum Associates, Halsted Press. 1978.
4.
Brown, B.Effect of background constraint on visual search time. Ergonomics, 1976, 19, 441–449.
5.
Brown, B. and Monk, T. H.The effect of local target surround and whole background constraint on visual search times. Human Factors, 1975, 17, 81–88.
6.
Eriksen, B. A. and Eriksen, C. W.The importance of being first: A tachistoscopic study of the contribution of each letter to the recognition of four-letter words. Perception & Psychophysics, 1974, 15, 66–72.
7.
Eriksen, C. W., and Hoffman, J. E.Temporal and spatial characteristics of selective encoding from visual displays. Perception & Psychophysics, 1972, 12, 201–204.
8.
Foster, J. J. and Kirkland, W.Experimental studies of map typography. Bulletin of the Society of University Cartographers, 1971, 6, 40–45.
9.
Flom, M. C., Weymouth, F. S., and Kahneman, D.Visual resolution and contour interaction. Journal of the Optical Society of America, 1963, 53, 1026–1032.
10.
Gould, J. D.Pattern recognition and eye-movement parameters. Perception & Psychophysics, 1967, 2, 399–407.
11.
Imhof, E.Die Anordnung der Namen in der Karte. International Yearbook of Cartography, 1962, 11, 93–129.
12.
Imhof, E.The placing of names on maps. (a translation of the above.)American Cartographer, 1975, 2, 128–144.
13.
Loomis, J. M.Lateral masking in foveal and eccentric vision. Vision Research, 1978, 18, 335–338.
14.
McConkie, G. W.On the role and control of eye movements in reading. P. A. Kolers, M. E. Wrolstad, & H. Bouma (Eds.) Visible language.New York: Plenum. 61–75.
15.
Monk, T. H. and Brown, B.The effect of target surround density on visual search performance. Human Factors, 1975, 17, 356–360.
16.
Phillips, R. J. and Noyes, L.Searching for names in two city street maps. Applied Ergonomics, 1977, 8, 73–77.
17.
Phillips, R. J., Noyes, L., and Audley, R. J.The legibility of type on maps. Ergonomics, 1977, 20, 671–682.
18.
Phillips, R. J., Noyes, L., and Audley, R. J.Searching for names on maps. Cartographic Journal, 1978, 15, 72–77.
19.
Poulton, E. C.Bias in ergonomic experiments. Applied Ergonomics, 1973, 4, 17–18.
20.
Spencer, H., Reynolds, L., and Coe, B.Typographic coding in lists and bibliographies. Applied Ergonomics, 1974, 5, 136–141.
21.
Taylor, R. M.An evaluation of an experimental map for the projected map display. Seventh International Conference on Cartography, Madrid. 1974.
22.
Taylor, R. M. and Hopkins, V. D.Ergonomic principles and map design. Applied Ergonomics, 1975, 6, 196–204.
23.
Teichner, W. H. and Krebs, M. J.Visual search for simple targets. Psychological Bulletin.1974, 81, 15–28.
24.
Williams, E. J.Experimental designs balanced for the estimation of residual effects of treatments. Australian Journal of Scientific Research, 1949, 2, 149–168.
25.
Williams, L. G.Obtaining information from displays with discrete elements. Cartographic Monograph, 1971, 2, 29–34.
26.
Wolford, G. and Hollingworth, S.Retinal location and string position as important variables in visual information processing. Perception & Psychophysics, 1974, 16, 437–442.
27.
Worrall, N. and Coles, P.Visual field differences in recognising letters. Perception and Psychophysics, 1976, 20, 21–24.
