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Aphasiology Volume 36, 2022 - Issue 1
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Research Article

Language and memory: an investigation of the relationship between autobiographical memory recall and narrative production of semantic and episodic information

Bruna Seixas-Limaa Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada;b Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada;c Toronto Rehabilitation Institute, University Health Network, Toronto, ON, CanadaCorrespondence[email protected]
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Kelly Murphyd Department of Psychology, University of Toronto, Toronto, ON, Canada;e Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, ON, CanadaORCID Iconhttps://orcid.org/0000-0002-3827-5814View further author information
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Angela K. Troyerd Department of Psychology, University of Toronto, Toronto, ON, Canada;e Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, ON, CanadaORCID Iconhttps://orcid.org/0000-0001-5660-4127View further author information
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Brian Levined Department of Psychology, University of Toronto, Toronto, ON, Canada;f Rotman Research Institute – Baycrest Centre, Toronto, ON, CanadaView further author information
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Naida Grahama Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada;b Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada;c Toronto Rehabilitation Institute, University Health Network, Toronto, ON, CanadaView further author information
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Carol Leonardb Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada;g Audiology and Speech-Language Pathology Program, University of Ottawa, Ottawa, ON, CanadaView further author information
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David Tang-Waih Department of Medicine, Division of Neurology, University Health Network Memory Clinic, Toronto, ON, CanadaView further author information
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Sandra Blacki Sunnybrook Health Sciences Centre, Toronto, ON, Canada;j Institute of Medical Science, University of Toronto, Toronto, ON, Canada;k L.C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto, ON, CanadaView further author information
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Elizabeth Rochona Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada;b Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada;c Toronto Rehabilitation Institute, University Health Network, Toronto, ON, CanadaORCID Iconhttps://orcid.org/0000-0001-5521-0513View further author information
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Pages 1-20 | Received 17 Mar 2020, Accepted 09 Oct 2020, Published online: 11 Dec 2020
 
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ABSTRACT

Background: The production of autobiographical narratives requires linguistic structures and the ability to access and generate both semantic information and episodic details of personal events.

Aims: This study investigated autobiographical narratives produced by individuals with established semantic memory impairments (semantic variant primary progressive aphasia; svPPA) or episodic memory impairments (amnestic mild cognitive impairment; aMCI) in order to investigate whether different categories of memory impairment would manifest different linguistic deficits.

Methods & Procedures: We used the Autobiographical Interview and Quantitative Production Analysis methods to investigate linguistic production during autobiographical recall. Additional investigations compared the production of present and past tense inflections in order to look for morpho-syntactic differences in the sets of episodic and semantic information.

Outcomes and Results: The results showed that individuals with svPPA produced fewer well-formed sentences when producing episodic details and produced fewer past tense inflections when producing semantic details in comparison to healthy controls. The aMCI group produced fewer episodic utterances but produced a larger number of words in the set of semantic details, in comparison to healthy controls.

Conclusions: It is possible that specific demands related to the type of message being conveyed, or high cognitive load during retrieval of episodic information may affect the narration process. Difficulty in the retrieval of episodic information is likely related to reduced production of episodic utterances in individuals with aMCI and may be related to deficits in linguistic production in svPPA. We propose that the results in the set of semantic details are connected to previous findings relating to semantic memory and deficits in discourse coherence in both groups.

Disclosure statement

The authors report no conflict of interest.

Supplementary material

Supplemental data for this article can be accessed here.

Additional information

Funding

This research was supported by the Canadian Institutes of Health Research [grant numbers 82744 and 130462].

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