Examining the episodic-semantic interaction during future thinking – A reanalysis of external details.
While traditional analyses of autobiographical construction tend to focus on the 'internal' or episodic details of the narrative, contemporary studies employing fine-grained scoring measures reveal the 'external' component to contain important information relevant to the individual's life story. Her...
| Published in: | Memory & Cognition Vol. 50; no. 3; pp. 617 - 630 |
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| Main Authors: | , , , , |
| Format: | Article |
| Published: |
Springer Nature
Apr2022
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| Subjects: | |
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=155889102&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 155889102 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 0090502X MEG jtl: Memory & Cognition issn: 0090502X maglogo: N pubinfo: dt: Apr2022 vid: 50 iid: 3 pid: 237 pub: Springer Nature artinfo: ui: 155889102 10.3758/s13421-021-01222-w ppf: 617 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P size: 766KB tig: atl: Examining the episodic-semantic interaction during future thinking – A reanalysis of external details. aug: au: Strikwerda-Brown, Cherie Shaw, Siobhán R. Hodges, John R. Piguet, Olivier Irish, Muireann affil: The University of Sydney, Brain and Mind Centre, Camperdown, Australia The University of Sydney, School of Psychology, Camperdown, Australia ARC Centre of Excellence in Cognition and its Disorders, Sydney, Australia The University of Sydney, Sydney Medical School, Camperdown, Australia su: Task performance Episodic memory Thought & thinking Gray matter (Nerve tissue) Alzheimer's disease Autobiographical memory Semantic memory Comparative studies Frontotemporal dementia sug: subj: Task performance Episodic memory Thought & thinking Gray matter (Nerve tissue) Alzheimer's disease Autobiographical memory Semantic memory Comparative studies Frontotemporal dementia keyword: Episodic construction Semantic dementia Episodic construction Semantic dementia ab: While traditional analyses of autobiographical construction tend to focus on the 'internal' or episodic details of the narrative, contemporary studies employing fine-grained scoring measures reveal the 'external' component to contain important information relevant to the individual's life story. Here, we used the recently developed NExt scoring protocol to explore profiles of external details generated by patients with Alzheimer's disease (AD) (n = 11) and semantic dementia (SD) (n = 13) on a future thinking task. Overall, distinct NExt profiles were observed for future events in AD and SD. Specifically, AD patients provided significantly more Specific Episode external details compared with Controls. Using voxel-based morphometry, these increased external details within future narratives related to grey matter intensity in medial and lateral frontal regions in AD. By contrast, SD patients displayed an elevation of Specific Episode, Extended Episode, and General Semantic details during future simulation relative to Controls, which related to grey matter intensity of medial and lateral parietal regions. Our findings suggest that the compensatory external details generated during future simulation comprise an array of episodic and semantic details that vary in terms of specificity and self-relevance, which may be differentially affected depending on the locus of underlying neuropathology in dementia. Adopting a fine-grained approach to external details helps to characterise the interplay between episodic and semantic content during future stimulation and suggests potentially differential vulnerability and preservation of distinct components of the constructed narrative in clinical disorders. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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