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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Cortex. 2018 Sep 18;109:60–73. doi: 10.1016/j.cortex.2018.08.035

Figure 4.

Figure 4.

A) Bilateral anatomical analysis of the hippocampus (in red) revealed both an effect of memory strength and effect of overlap, with higher beta values for the high overlap condition. The dashed lines show the nonlinear fit curves, which differed for the high and low conditions. B) A bilateral anatomical analysis of the associative striatum (anterior caudate and anterior putamen in yellow, posterior putamen (not part of associative striatum) in red) also showed a quadratic relationship with memory strength, but in the opposite direction than in the hippocampus, with no effect of overlap. Memory strength bins are evenly spaced based on probability of correct performance making the Strength 1 bin (0–0.2 probability correct]) reflect numerically below-chance performance, which is shaded in these graphs.