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. Author manuscript; available in PMC: 2008 Apr 28.
Published in final edited form as: Cereb Cortex. 2006 Apr 7;17(3):552–561. doi: 10.1093/cercor/bhj180

Figure 1.

Figure 1

Summary of Experiment 1. (A) Definition of CT regularity in percent; 100% means perfectly regular click positions spaced by the ICI of 12 ms; 75% means clicks were positioned randomly within 25% of the regular click positions, etc. The shaded areas indicate the intervals in which the clicks were jittered. (B) Order of stimulus presentation. The regularity of the target CT was either fixed at 100% or varied between 100% and 25%. The duration of each target and baseline interval was 720 ms, and each condition was repeated 25 times before switching to the next condition, such that 1 block with all 4 conditions lasts 144 s (2 × 720 ms × 25 repetitions × 4 conditions). The contrast of T/B regularity is denoted target% [baseline%]. (C) The 4 different blocks of 25 stimuli were repeated 8 times.