Relation between hippocampus volumes, retention rate, and learning accuracy. (A) Scatterplots depicting associations between short-delay and long-delay retention rates with residualized right HC volume. Retention rate on the y-axis is measured as a proportion between final accuracy on Day 0 and memory performance on Day 1 (short delayday1/day0) and between final accuracy on Day 0 and memory performance on Day 14 (long delayday14/day0). On the x-axis the residualized right HC volume was corrected for head size (using ICV) using the residual approach (Mathalon et al., 1993; Voevodskaya et al., 2014). (B) Scatterplot showing the relation between the final learning accuracy on Day 0 and right medial orbitofrontal cortical thickness (centered). HC: Hippocampus; ICV: intracranial volume.

Relation between hippocampus volumes, retention rate, and learning accuracy. (A) Scatterplots depicting associations between short-delay and long-delay retention rates with residualized right HC volume. Retention rate on the y-axis is measured as a proportion between final accuracy on Day 0 and memory performance on Day 1 (short delayday1/day0) and between final accuracy on Day 0 and memory performance on Day 14 (long delayday14/day0). On the x-axis the residualized right HC volume was corrected for head size (using ICV) using the residual approach (Mathalon et al., 1993; Voevodskaya et al., 2014). (B) Scatterplot showing the relation between the final learning accuracy on Day 0 and right medial orbitofrontal cortical thickness (centered). HC: Hippocampus; ICV: intracranial volume.

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From early to middle childhood, brain regions that underlie memory consolidation undergo profound maturational changes. However, there is little empirical investigation that directly relates age-related differences in brain structural measures to the memory consolidation processes. The present study examined system-level memory consolidations of in...

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Context 1
... term born and preterm born children, while adults showed bigger left and right HC volumes in comparison to both groups of children (see Table 2). Based on this observation, term born and preterm born children were combined into one group for the subsequent analyses (referred to as the children group .77], F(1,75) = 5.98, p = .016, w 2 = .06 (see Fig. 5). Moreover, there was a significant right HC x Group interaction, F(1,75) = 6.01, p = .016, w 2 = .06, indicating an age effect in the relation of right HC and memory consolidation. This interaction was probed by conducting two separate multilevel models for the group of children and the group of young adults with the same setup as ...
Context 2
... w 2 = .10, irrespective of age group, F (1,71) = 1.88 p = .06, w 2 = .02. Follow up tests on observed groups differences revealed that in children, thinner right medial OFC thickness was predictive of final learning performance while thinner left OFC was associated with final learning performance in both groups of children and in adults (see Fig. 5). For completeness, we also explored the relationship between the IFG and HC with final learning performance, which did not yield any significant results (all p > .26). Therefore, only the medial OFC showed significant relationship with final learning performance. ...

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