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Prospective memory functions in traumatic brain injury : The role of neuropsychological deficits, metamemory and impaired self-awareness
Lencsés, Anita Mikula, Bernadett Mioni, Giovanna Rendell, Peter G. Dénes, Zoltán Demeter, Gyula
Lencsés, Anita
Mikula, Bernadett
Mioni, Giovanna
Rendell, Peter G.
Dénes, Zoltán
Demeter, Gyula
Abstract
A large body of evidence suggests that individuals with traumatic brain injury (TBI) have significant difficulties with prospective memory (PM), the memory for future intentions. However, the processes underlying this cognitive deficit remain unclear. This study aimed to gather further evidence regarding PM functions in TBI and clarify the role of neuropsychological deficits, metamemory, and mood disorders. We used a laboratory-based clinical measure, the Virtual Week, to examine PM function in 18 patients with TBI and 18 healthy control subjects. Measures of attention, processing speed, executive functions, episodic memory, and self-report questionnaires were also administered. In line with prior literature, our findings indicate that individuals with TBI had a consistent deficit compared to controls across all PM tasks. In previous studies, TBI patients had more severe impairment on time-based tasks; nevertheless, our results show that across all participants event-based tasks were easier to perform compared to time-based only when the retrospective memory demand was high. The patients were not only impaired on the prospective component of PM but also failed to recognise the content of their task (the retrospective component). Interestingly, the TBI group did not report higher levels of everyday memory problems, anxiety and depression compared to the control group. These measures also failed to correlate with PM and recognition memory performance. This study found that besides the neuropsychological deficits, a global impairment in PM functioning is present in individuals with TBI across various task types, tasks low and high in retrospective demands, and event versus time-based.
Keywords
intention maintenance, prospective memory, self-awareness, traumatic brain injury, virtual week
Date
2024
Type
Journal article
Journal
Journal of Neuropsychology
Book
Volume
19
Issue
1
Page Range
51-66
Article Number
ACU Department
Collections
Relation URI
Source URL
Event URL
Open Access Status
Published as ‘gold’ (paid) open access
License
CC BY 4.0
File Access
Open
Notes
© 2024 The Author(s). Journal of Neuropsychology published by John Wiley & Sons Ltd on behalf of The British Psychological Society.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.