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. 2017 Apr 19;12(4):e0174755. doi: 10.1371/journal.pone.0174755

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© 2017 Fogel et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 7 — A: Positive correlation (r(11) = 0.53, p = 0.061) between spindle-related activation in the right striatum and the change in activation from the whole training session to the whole retest session. B: A similar relationship (r(11) = 0.53, p = 0.065) was observed between spindle-related activations and overnight changes in the right striatum from end of training to start of retest during practice (first 7 blocks retest—last 7 blocks training). While these correlates are significant only at trend levels, note the very clear linear relationship in the scatterplots, which are consistent with our a-priori hypotheses (and would be statistically significant if a one-tailed test were employed). Signal intensity expressed in arbitrary units (a.u.) obtained from extracting raw beta weights.