Semantic Dementia Shows both Storage and Access Disorders of Semantic Memory
Joint Authors
Yamaguchi, Satoshi
Meguro, Kenichi
Akanuma, Kyoko
Nakatsuka, Masahiro
Kasai, Mari
Takahashi, Yumi
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-09
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Objective.
Previous studies have shown that some patients with semantic dementia (SD) have memory storage disorders, while others have access disorders.
Here, we report three SD cases with both disorders.
Methods.
Ten pictures and ten words were prepared as visual stimuli to determine if the patients could correctly answer names and select pictures after hearing the names of items (Card Presentation Task, assessing memory storage disorder).
In a second task, the viewing time was set at 20 or 300 msec (Momentary Presentation Task, evaluating memory access disorder) using items for which correct answers were given in the first task.
The results were compared with those for 6 patients with Alzheimer’s disease (AD).
Results.
The SD patients had lower scores than the AD group for both tasks, suggesting both storage and access disorders.
The AD group had almost perfect scores on the Card Presentation Task but showed impairment on the Momentary Presentation Task, although to a lesser extent than the SD cases.
Conclusions.
These results suggest that SD patients have both storage and access disorders and have more severe access disorder than patients with AD.
American Psychological Association (APA)
Takahashi, Yumi& Meguro, Kenichi& Nakatsuka, Masahiro& Kasai, Mari& Akanuma, Kyoko& Yamaguchi, Satoshi. 2014. Semantic Dementia Shows both Storage and Access Disorders of Semantic Memory. Behavioural Neurology،Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-477264
Modern Language Association (MLA)
Takahashi, Yumi…[et al.]. Semantic Dementia Shows both Storage and Access Disorders of Semantic Memory. Behavioural Neurology No. 2014 (2014), pp.1-4.
https://search.emarefa.net/detail/BIM-477264
American Medical Association (AMA)
Takahashi, Yumi& Meguro, Kenichi& Nakatsuka, Masahiro& Kasai, Mari& Akanuma, Kyoko& Yamaguchi, Satoshi. Semantic Dementia Shows both Storage and Access Disorders of Semantic Memory. Behavioural Neurology. 2014. Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-477264
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477264