Relationships between hippocampal shape and cognitive performances in drug-naïve patients with Alzheimer's disease

► Hippocampal CA1-3 and subiculum areas showed deformation in patients with AD. ► Hippocampal CA1 deformations were correlated with verbal immediate memory in AD. ► Hippocampal CA1 deformations were correlated with verbal delayed recall in AD. ► Hippocampal CA1 deformations were correlated with verbal recognition in AD. ► Hippocampal CA1 deformations were correlated with visuospatial recall in AD.