<p>The significance threshold was determined in a permutation procedure (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089576#s4" target="_blank">Methods</a>) A) Learning unrelated correlations of TPR with performance. B) Learning related correlations of TPR with performance. Darker colors indicate stronger correlations. See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089576#s4" target="_blank">Methods</a> for calculations on separating performance and learning related effects. The blue shape in the first and second row show the outline of all superimposed square grids. The black shapes in the third row denotes the grid locations for the participant in the AMCT. Spatial distortions result from the projection onto the cortex (for details see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0089576#pone.0089576.s003" target="_blank">Figure S2</a>).</p