Insights from semantic dementia on the relationship between episodic and semantic memory

Graham, Kim Samantha ORCID: https://orcid.org/0000-0002-1512-7667, Simons, J. S., Pratt, K. H., Patterson, K. and Hodges, J. R. 2000. Insights from semantic dementia on the relationship between episodic and semantic memory. Neuropsychologia 38 (3) , pp. 313-324. 10.1016/S0028-3932(99)00073-1

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Abstract

An influential theory of long-term memory, in which new episodic learning is dependent upon the integrity of semantic memory, predicts that a double dissociation between episodic and semantic memory is not possible in new learning. Contrary to this view, we found, in two separate experiments, that patients with impaired semantic memory showed relatively preserved performance on tests of recognition memory if the stimuli were perceptually identical between learning and test. A significant effect of semantic memory was only seen when a perceptual manipulation was introduced in the episodic task. To account for these findings, we propose a revision to current models of long-term memory, in which sensory/perceptual information and semantic memory work in concert to support new learning.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology Systems Immunity Research Institute (SIURI)
Subjects:	B Philosophy. Psychology. Religion > BF Psychology R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords:	Frontotemporal dementia; Alzheimer’s disease; Hippocampus; Temporal lobes; New learning; Conceptual knowledge
Publisher:	Elsevier
ISSN:	0028-3932
Last Modified:	21 Oct 2022 09:01
URI:	https://orca.cardiff.ac.uk/id/eprint/35064

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