Clusters of significant correlations between age and the strength of the outflow, projected on a template brain. Positive t-values mean that older individuals have more outflow from this region, negative t-values imply less outflow for older individuals. A cluster-based randomization was done in order to calculated the t-values from a distribution of 1000 randomizations.
Schlee et al. BMC Neuroscience 2012 13:16 doi:10.1186/1471-2202-13-16