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Episodic memory across the lifespan: the contributions of associative and strategic components.
- Source :
-
Neuroscience and biobehavioral reviews [Neurosci Biobehav Rev] 2010 Jun; Vol. 34 (7), pp. 1080-91. Date of Electronic Publication: 2009 Nov 06. - Publication Year :
- 2010
-
Abstract
- The structural and functional brain circuitries supporting episodic memory undergo profound reorganization in childhood and old age. We propose a two-component framework that combines and integrates evidence from child development and aging. It posits that episodic memory builds on two interacting components: (a) the strategic component, which refers to memory control operations, and (b) the associative component, which refers to mechanisms that bind different features of a memory episode into a compound representation. We hypothesize that: (a) children's difficulties in episodic memory primarily originate from low levels of strategic operations, and reflect the protracted development of the prefrontal cortex (PFC); (b) deficits in episodic memory performance among older adults originate from impairments in both strategic and associative components, reflecting senescent changes in the PFC and the medio-temporal lobes (MTL). Initial behavioral and neural evidence is consistent with both hypotheses. The two-component framework highlights the specificities of episodic memory in different age periods, helps to identify and dissociate its components, and contributes to understanding the interplay among maturation, learning, and senescence.<br /> (Copyright (c) 2009 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-7528
- Volume :
- 34
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- Neuroscience and biobehavioral reviews
- Publication Type :
- Academic Journal
- Accession number :
- 19896974
- Full Text :
- https://doi.org/10.1016/j.neubiorev.2009.11.002