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024 7 _ |a 10.1016/j.cortex.2014.12.007
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024 7 _ |a pmid:25597525
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024 7 _ |a pmc:PMC4884644
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024 7 _ |a 0010-9452
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024 7 _ |a 1973-8102
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024 7 _ |a altmetric:3037261
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037 _ _ |a DZNE-2020-04152
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Vieweg, Paula
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245 _ _ |a Changes in pattern completion--a key mechanism to explain age-related recognition memory deficits?
260 _ _ |a New York, NY
|c 2015
|b Elsevier
264 _ 1 |3 print
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|b Elsevier BV
|c 2015-03-01
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336 7 _ |a ARTICLE
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336 7 _ |a Journal Article
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520 _ _ |a Accurate memory retrieval from partial or degraded input requires the reactivation of memory traces, a hippocampal mechanism termed pattern completion. Age-related changes in hippocampal integrity have been hypothesized to shift the balance of memory processes in favor of the retrieval of already stored information (pattern completion), to the detriment of encoding new events (pattern separation). Using a novel behavioral paradigm, we investigated the impact of cognitive aging (1) on recognition performance across different levels of stimulus completeness, and (2) on potential response biases. Participants were required to identify previously learned scenes among new ones. Additionally, all stimuli were presented in gradually masked versions to alter stimulus completeness. Both young and older adults performed increasingly poorly as the scenes became less complete, and this decline in performance was more pronounced in elderly participants indicative of a pattern completion deficit. Intriguingly, when novel scenes were shown, only the older adults showed an increased tendency to identify these as familiar scenes. In line with theoretical models, we argue that this reflects an age-related bias towards pattern completion.
536 _ _ |a 344 - Clinical and Health Care Research (POF3-344)
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542 _ _ |i 2015-03-01
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650 _ 2 |a Adult
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650 _ 2 |a Aged
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650 _ 2 |a Aging: physiology
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650 _ 2 |a Attention: physiology
|2 MeSH
650 _ 2 |a Female
|2 MeSH
650 _ 2 |a Humans
|2 MeSH
650 _ 2 |a Male
|2 MeSH
650 _ 2 |a Memory: physiology
|2 MeSH
650 _ 2 |a Memory Disorders: physiopathology
|2 MeSH
650 _ 2 |a Mental Recall: physiology
|2 MeSH
650 _ 2 |a Middle Aged
|2 MeSH
650 _ 2 |a Neuropsychological Tests
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650 _ 2 |a Photic Stimulation
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650 _ 2 |a Reaction Time: physiology
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650 _ 2 |a Young Adult
|2 MeSH
700 1 _ |a Stangl, Matthias
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700 1 _ |a Howard, Lorelei R
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700 1 _ |a Wolbers, Thomas
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773 1 8 |a 10.1016/j.cortex.2014.12.007
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|p 343-351
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|t Cortex
|v 64
|y 2015
|x 0010-9452
773 _ _ |a 10.1016/j.cortex.2014.12.007
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856 7 _ |2 Pubmed Central
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856 4 _ |u https://pub.dzne.de/record/137830/files/DZNE-2020-04152_Restricted.pdf
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910 1 _ |a Deutsches Zentrum für Neurodegenerative Erkrankungen
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