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. 2018 Oct 9;10:316. doi: 10.3389/fnagi.2018.00316

FIGURE 1.

FIGURE 1

Schematic of the experimental design. (A) The subject was approximately 60 cm away from the computer screen used to present visual stimuli. (B) The visual non-target stimulus was a black and white checkerboard image, and the visual target stimulus was a black and white checkerboard image containing two black dots. The auditory non-target stimulus was a 1000 Hz sinusoidal tone (black speaker), and the auditory target stimulus was white noise (gray speaker). The audiovisual stimuli included visual and auditory target or non-target stimuli. AV, simultaneous auditory and visual; V50A and V100A, auditory lag visual 50 ms and 100 ms, respectively; A50V and A100V, auditory leading visual 50 and 100 ms, respectively. (C) The timeline of one session. Each session started with a 3000 ms fixation period, and then visual, auditory, and audiovisual target or non-target stimuli with a duration of 150–250 ms were randomly presented. All stimuli were presented with an ISI that varied from 1300 to 1800 ms.