Distinct neuroanatomical bases of episodic and semantic memory performance in Alzheimer's disease

► We assessed the functional specialization of episodic and semantic memory. ► Participants were healthy or had very early Alzheimer's disease. ► Regressions with gray matter and FA controlled for contrasting memory performance. ► Episodic memory correlated with entorhinal cortex, hippocampal integrity. ► Semantic memory performance correlated with perirhinal cortex integrity.