摘要:Immediate serial recall is a task that potentially engages both a short-term phonological store and active rehearsal processes. In addition,accuracy and durability of recall is moderated by depth of semantic encoding (Baddeley,2003) Alzheimer’s Disease (AD) is characterized by disconnection and atrophy of medial temporal lobe structures, whereas Semantic Dementia (SD) is classically associated with atrophy of the lateral temporal cortex (Mummery, 2001). These diÆring pathologies manifest reverse temporal gradients for episodic memory recall. Word list recall can potentially provide a sensitive index of these difèring amnestic impairments. We hypothesized the following.