| Failing to get the gist: reduced false recognition of semantic associates in semantic dementia (2005) | |||||||||||
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| Neuropsychology Vol Copyright the American Psychological Association DOI Failing Get the Gist Reduced False Recognition Semantic Associates Semantic Dementia Jon Simons University College London Andy Lee and Kim Graham Medical Research Council Cognition and Brain Sciences Unit Mieke Verfaellie Boston University School Medicine Wilma Koutstaal University Minnesota John Hodges Medical Research Council Cognition and Brain Sciences Unit Daniel Schacter Harvard University Andrew Budson Edith Nourse Rogers Memorial Veterans Hospital and Brigham and Women Hospital experiments involving patients with semantic dementia the authors investigated the impact semantic memory loss both true and false recognition Experiment involved recognition memory for categories everyday objects that shared predominantly semantic relationship The patients showed preserved item specific recollection for the pictorial stimuli but compared with control participants exhibited significantly reduced utilization gist information regarding the categories objects The latter result consistent with the patients degraded semantic knowledge Experiment involved categories abstract objects that were related one another perceptually rather than semantically Patients with semantic dementia obtained item specific recollection and gist memory scores that were indistinguishable from those control participants These results suggest that the reduction gist memory semantic dementia largely specific semantic representations and | |||||||||||
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