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. Author manuscript; available in PMC: 2011 Jul 27.
Published in final edited form as: J Vis. 2010 Oct 26;10(12):31. doi: 10.1167/10.12.31

Figure 1.

Figure 1

(A) Stimulus configuration. Red bars were first flashed simultaneously to upper-left (FL) and right (FR) of a central fixation circle, then either FL or FR was extinguished after which bars were flashed sequentially. Auditory beeps were emitted by speakers positioned above display. (B) Timing diagram for event cycle in Experiment 1. In this example, FL was followed by FR with a delay of ISILR. The delay between FR and the subsequent FL was ISIRL. ISILR plus ISIRL was held constant at 320 ms. The visual-only condition had no sounds. For audiovisual conditions, beeps were introduced in either the LR or RL interval. The ISI between individual beeps and flashes was 20 ms. (C) Timing diagram for Experiment 2. Reference and test stimuli consisted of two visual flashes. Beeps were only introduced during the reference stimulus. Each experimental session consisted of three audiovisual conditions and one visual-only condition. In B and C, timing of bars in audiovisual trials is indicated by dashed lines aligned with bar presentation in visual-only condition.