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. Author manuscript; available in PMC: 2009 Jul 27.
Published in final edited form as: Ann N Y Acad Sci. 2009 Mar;1156:260–293. doi: 10.1111/j.1749-6632.2009.04420.x

Figure 12.

Figure 12

Obtained from (Fox et al., 2007). This is a demonstration that coherent spontaneous activity in the motor cortex influences the force at which subjects press a button. A. Average left SMC BOLD time courses for the hard (blue) and soft (red) button presses. Yellow indicates significant differences between them. The same time courses for the right SMC also shows a BOLD-behavior effect. C. After spontaneous fluctuations were regressed out, the effect disappears. D. Summary of the comparison of A and C.