The other side of the coin: Semantic dementia as a lesion model for understanding recollection and familiarity.

The syndrome of semantic dementia represents the "other side of the coin" to Alzheimer's disease, offering convergent evidence to help refine Bastin et al.'s integrative memory model. By considering the integrative memory model through the lens of semantic dementia, we propose a number of important extensions to the framework, to help clarify the complex neurocognitive mechanisms underlying recollection and familiarity.