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Differential cognitive substrates of verbal episodic memory performance in semantic variant primary progressive aphasia and Alzheimer’s disease
Author(s) -
DeVaughn Saskia,
Casaletto Kaitlin B.,
Staffaroni Adam M.,
Wolf Amy A.,
Marx Gabe,
Kramer Joel H.
Publication year - 2021
Publication title -
journal of neuropsychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 37
eISSN - 1748-6653
pISSN - 1748-6645
DOI - 10.1111/jnp.12200
Subject(s) - primary progressive aphasia , episodic memory , semantic memory , psychology , cognitive psychology , dissociation (chemistry) , recall , cognition , verbal memory , aphasia , neuropsychology , disease , dementia , frontotemporal dementia , medicine , neuroscience , chemistry , pathology
Performance on neuropsychological measures of verbal memory requires cognitive abilities beyond memory. We examined the contribution of semantic knowledge in verbal episodic memory for semantic variant primary progressive aphasia (svPPA) or Alzheimer’s disease (AD). 415 AD and 68 svPPA participants completed measures of episodic memory (visual and verbal) and semantic knowledge. A double dissociation existed visual recall predicted verbal recognition in AD, whereas semantic knowledge contributed to verbal recognition in svPPA.