Memory consolidation and the medial temporal lobe: a simple network model.

AUTOR(ES)

Alvarez, P

RESUMO

Some forms of memory have been shown to depend on a system of medial temporal lobe structures that includes the hippocampus and the adjacent cortical areas (entorhinal, perirhinal, and parahippocampal cortex). The role of this system is only temporary, however, as indicated by the fact that, after damage to the medial temporal lobe, recent memories are impaired but very remote memories are intact. Here we review the evidence that the medial temporal lobe memory system is involved in a process of consolidation: memories are initially dependent on this system but gradually become established in other areas of the brain. We then review some of the ideas that have been proposed about the phenomenon of consolidation and suggest a synthesis of these views. Finally, we describe a simple neural network model that captures some key features of consolidation.

Documentos Relacionados

• Neuropsychology of the temporal lobe: Luria's and contemporary conceptions
• Impaired Auditory Recognition Memory in Amnesic Patients with Medial Temporal Lobe Lesions
• Multiple routes to memory: Distinct medial temporal lobe processes build item and source memories
• Remembering one year later: Role of the amygdala and the medial temporal lobe memory system in retrieving emotional memories
• The Utah education network: a collaborative model.