In an experiment that kept visual display factors constant but which varied cognitive load, it was found that cognitive load modulated the functional field of view. When given a high level of foveal (cognitive) load, the functional field of view was only about 2 deg in diameter, whereas a low level of foveal load resulted in a functional field of about 4 deg diameter. The shrinkage of the functional field appeared to be rather generalized and not a true tunnelvision effect.
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References
1.
Bamber, D.Reaction times and error rates for “same different” judgments of multidimensional stimuli. Perception and Psychophysics. 1969, 6, 169-174.
2.
Bouma, H.Visual interference in the parafoveal recognition of initial and final letters of words. Vision Research. 1973.13, 767-782.
3.
Bursill, A. E.The restriction of peripheral vision during exposure to hot and humid conditions. Quarterly Journal of Experimental Psychology, 1958, 10, 113-129.
4.
Chaikin, J. D., Corbin, H. H., and Volkmann, J.Mapping a field of short-time visual search. Science, 1962. 138, 1327-1328.
5.
Engel, F. L.Visual conspicuity, directed attention, and retinal locus. Vision Research, 1971, 11, 563-576.
6.
Engel, F. L.Visual conspicuity and selective background interference in eccentric vision. Vision Research, 1974, 14, 459-471.
7.
Greening, C. P.Mathematical modeling of air-to-ground target acquisition. Human Factors, 1976, 18. 111-148.
8.
Holmes, D. L., Cohen, K. M., Haith, M. M., and Morrison, F. J.Peripheral visual processing. Perception and Psychophysics, 1977, 22, 571-577.
9.
Ikeda, M., and Takeuchi, T.Influence of foveal load on the functional visual field. Perception and Psychophysics, 1975, 18, 255-260.
10.
Loftus, G. R., and Mackworth, N. H.Cognitive determinants of fixation locating during picture viewing. Journal of Experimental Psychology: Human Perception and Performance, 1978, 4, 565-572.
Moray, N.Mental workload: Its theory and measurement. New York: Plenum, 1979.
13.
Nelson, W. M., and Loftus, G. R.Functional visual field during picture viewing. Journal of Experimental Psychology: Human Learning and Memory. 1980, 6, 39-49.
14.
Ogden, G. D., Levine, J. M., and Eisner, E. J.Measurement of workload by secondary tasks. Human Factors, 1979, 21, 529-548.
15.
Polyak, S.The retina. Chicago: University of Chicago Press, 1941.
16.
Posner, M. I., and Mitchell, R. F.Chronometric analysis of classification. Psychological Review, 1967, 74, 392-409.
17.
Poulton, E. C.Peripheral vision refractoriness and eye movements in fast oral reading. British Journal of Psychology, 1962, 53, 409-419.
18.
Rayner, K., and Morrison, R. E.Eye movements and identifying words in parafoveal vision. Bulletin of the Psychonomic Society, 1981, 17, 135-138.
19.
Saida, S., and Ikeda, M.Useful visual field size for pattern perception. Perception and Psychophysics, 1979, 25, 119-125.
20.
Schiepers, C.Response latency and accuracy in visual word recognition. Perception and Psychophysics, 1980, 27, 71-81.
21.
Schneider, G. E.Two visual systems: Brain mechanisms for localization and discrimination are dissociated by tectal lesions. Science, 1969, 163, 895-902.
22.
Teichner, W. H.Interaction of behavioral and physiological stress reactions. Psychological Review, 1968, 75, 271-291.
23.
Trevarthan, C. B.Two mechanisms of vision in primates. Psychologische Forshung, 1968, 31, 299-337.
24.
Webster, R., and Haslerud, G.Influence on extreme peripheral vision of attention to a visual or auditory task. Journal of Experimental Psychology, 1964, 68, 269-272.
25.
Whitaker, L. A.Dual-task interference as a function of cognitive processing load. Acta Psychologica, 1979, 43, 71-84.
26.
Williams, L. J., and Lefton, L. A.Processing of alphabetic information presented in the fovea or the periphery: Functional visual field and cognitive load. Perception, 1981, 10, 645-650.
27.
Williges, R. C., and Wierwille, W. W.Behavioral measures of aircrew mental workload. Human Factors, 1979, 21, 549-574.
