Figure 3.

Network anticorrelations after global regression are a linear function of the size of the networks. A: 100 voxel simulation with similar parameters to those above shows little effect of increased network size on correlation within the TNN (left). But TPN and TNN (right) become increasingly anticorrelated following global regression as network size increases. B: Similar results are seen in simulations for which a 10% anticorrelated signal was introduced into the TPN. The initial baseline anticorrelation is greater, but a similar linear trend towards greater anticorrelations with network size is seen. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com.]