Phase-Specific Hippocampal and Cortical Medial Temporal Lobe Involvement in Allocentric Working Memory
This fMRI study of 128 adults reveals that the hippocampus and medial temporal lobe cortices exhibit distinct, phase-specific activation patterns during allocentric working memory, showing engagement even during delay maintenance but lacking a direct correlation with performance in younger adults, whereas older adults demonstrate age-related reductions in anterior hippocampal and cortical activation despite comparable task performance.