The results of this study show that the ability to learn semantically unrelated information and recall unstructured information after a period of delay is particularly compromised in individuals with left hippocampal atrophy. These impairments were strongly associated with reduced left hippocampal volume. In contrast, volumes of the adjacent rhinal cortex were not related to memory performance. These findings underscore the central role of the left hippocampus in supporting verbal memory in temporal lobe epilepsy.
Sitoh et al. (Thu,) studied this question.