The mechanisms involved in reducing interference in visuospatial dual tasks were investigated. Three computerized visuospatial tasks, bargraphs, dot clusters, and occlusions (Boles, 1991, 1992, 1996) comprised the dual tasks. To compare the roles of automaticity and encapsulation, one group practiced dual tasks drawing upon separate processes while another practiced dual tasks drawing upon the same process. The results suggest automaticity plays a larger role in reducing interference than encapsulation. They also support the existence of resource training, in which practicing a mental resource in one task shows transfer to another task using the same resource.
BolesD. B. (1991). Factor analysis and the cerebral hemispheres: Pilot study and parietal functions. Neuropsychologia, 29, 59–91.
3.
BolesD. B. (1992). Factor analysis and the cerebral hemispheres: Temporal, occipital and frontal functions. Neuropsychologia, 30, 963–988.
4.
BolesD. B. (1996). Factor analysis and the cerebral hemispheres: “Unlocalized” functions. Neuropsychologia, 34, 723–736.
5.
BolesD. B. (1997). Multiple resource contributions to training. Proceedings of the Human Factors and Ergonomics Society, 41(st Annual Meeting, 1176–1179.
6.
BolesD. B. (2002). Lateralized spatial processes and their lexical implications. Neuropsychologia, 40, 2125–2135.
7.
BolesD. B.BurskJ. H.PhillipsJ. B.PerdelwitzJ. R. (2007). Predicting dual-task performance with the Multiple Resources Questionnaire (MRQ). Human Factors, 49, 32–45.
8.
BolesD. B.LawM. B. (1998). A simultaneous task comparison of differentiated and undifferentiated hemispheric theories. Journal of Experimental Psychology: Human perception and Performance, 24, 204–215.
9.
BolesD. B.PhillipsJ. B.GivensS. M. (2008). What dot clusters and bargraphs reveal: Subitizing is fast counting and subtraction. Brain and Cognition, in press.
10.
BrownT.CarrT. (1989). Automaticity in skill acquisition: Mechanisms for reducing interference in concurrent performance. Journal of Experimental Psychology: Human Perception and Performance, 15(4), 686–700.
11.
FiskA.ScerboM. (1987). Automatic and control processing approach to interpreting vigilance performance: A review and reevaluation. Human Factors, 29(6), 653–660.
12.
FiskA.SchneiderW. (1982). Type of task practice and time-sharing activities predict performance deficits due to alcohol ingestion. In Proceedings of the Human Factors Society 26th Annual Meeting, 926–930.
13.
GopherD.WeilM.BareketT. (1994). Transfer of skill from a computer game trainer to flight. Human Factors, 36, 387–405.
14.
HancockP. A. (1984). Environmental stressors. In WarmJ. S. (Ed.), Sustained attention in human performance, 103–143.
15.
PhillipsJ. B. (2006). Perceptual resources: Transfer of training and individual differences. Unpublished doctoral dissertation, University of Alabama.
16.
SchneiderW.FiskA. D. (1984). Automatic category search and its transfer. Journal of Experimental Psychology: Learning, Memory, and Cognition, 10, 1–15.
17.
WickensC. D. (1984). Engineering Psychology and Human Performance. Columbus, Ohio: Charles E. Merrill.
18.
WrightR.ThompsonW. L.GanisG.NewcombeN. S.KosslynS. M. (2008). Training generalized spatial skills. Psychonomic Bulletin & Review, 15, 763–771.
