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Journal Articles
Working Memory and the Hippocampus
UnavailablePublisher: Journals Gateway
Journal of Cognitive Neuroscience (2011) 23 (12): 3855–3861.
Published: 01 December 2011
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Abstract
View articletitled, Working Memory and the Hippocampus
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A number of studies suggest an important role for the hippocampus in tasks involving visuospatial or relational working memory. We test the generality of this proposal across tasks using a battery designed to investigate the various components of working memory, studying the working memory performance of Jon, who shows a bilateral reduction in hippocampal volume of approximately 50%, comparing him to a group of 48 college students. We measure performance on four complex working memory span measures based on combining visuospatial and verbal storage with visuospatial or verbal concurrent processing as well as measuring Jon's ability to carry out the component storage and processing aspects of these tasks. Jon performed at a consistently high level across our range of tasks. Possible reasons for the apparent disparity between our own findings and earlier studies showing a hippocampal deficit are discussed in terms of both the potential differences in the demands placed on relational memory and of the proposed distinction between egocentric and allocentric visuospatial processing.
Journal Articles
Publisher: Journals Gateway
Journal of Cognitive Neuroscience (2001) 13 (3): 357–369.
Published: 01 April 2001
Abstract
View articletitled, Preserved Recognition in a Case of Developmental Amnesia: Implications for the Acaquisition of Semantic Memory?
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for article titled, Preserved Recognition in a Case of Developmental Amnesia: Implications for the Acaquisition of Semantic Memory?
We report the performance on recognition memory tests of Jon, who, despite amnesia from early childhood, has developed normal levels of performance on tests of intelligence, language, and general knowledge. Despite impaired recall, he performed within the normal range on each of six recognition tests, but he appears to lack the recollective phenomenological experience normally associated with episodic memory. His recall of previously unfamiliar newsreel event was impaired, but gained substantially from repetition over a 2-day period. Our results are consistent with the hypothesis that the recollective process of episodic memory is not necessary either for recognition or for the acquisition of semantic knowledge.
Journal Articles
Publisher: Journals Gateway
Journal of Cognitive Neuroscience (1992) 4 (3): 281–288.
Published: 01 July 1992
Abstract
View articletitled, Working Memory: The Interface between Memory and Cognition
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for article titled, Working Memory: The Interface between Memory and Cognition
Working memory may be defined as the system for the temporary maintenance and manipulation of information, necessary for the performance of such complex cognitive activities as comprehension, learning, and reasoning. Used in this sense, the term refers to an area of research that may or may not prove to be dependent on a single coherent system. Such a system is proposed within a broad and relatively speculative overview of human memory that emphasizes the putative role of working memory. This is followed by a brief account of a particular model of working memory, and a more detailed discussion of the way in which the various subcomponents of the model relate to other aspects of memory and cognition.