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. Author manuscript; available in PMC: 2013 Dec 4.
Published in final edited form as: J Vis. 2007 Jul 24;7(10):10.1167/7.10.10. doi: 10.1167/7.10.10

Figure 4.

Figure 4

(A) Direction discrimination thresholds as a function of precue validity for four individual subjects. Each subject displayed a characteristic trade-off in direction discrimination thresholds: Increasing cue validity at one spatial scale reduced thresholds at that spatial scale while simultaneously elevating thresholds at the other spatial scale. The data presented at 50% cue validity in the graphs include both valid and invalid trials (Figure 5 separates the valid and invalid trials, for comparison). (B) Group results. There was a significant effect of cue validity on direction discrimination thresholds, F(2) = 91.38, p < .01, η = .968. Error bars denote ±SEM.