Anticorrelations between Active Brain Regions: An Agent-Based Model Simulation Study.

Modeling Brain Activity Using Different Amounts of Positive and Negative Links Different trends were found by our simulations depending upon the relative amount of positive and negative connectivities: In the former case (positive connectivities), the goodness-of-fit shows a peak at lower cost values, and a decreasing trend follows; in the latter (negative connectivities), the goodness-of-fit shows an increasing trend with a maximum at the maximal fraction of negative links.

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This indicates a possible interaction between different amounts of positive and negative links, so that only in the range of 5%–30% positive cost is there an increasing trend of goodness-of-fit upon addition of negative links (25%–30%).

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