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Predicting Remembering: Judgments of Prospective Memory After Traumatic Brain Injury
Katy H O'Brien1, Mary R T Kennedy2
1Communication Sciences and Special Education, University of Georgia, Athens.
Summary
Adults with traumatic brain injuries (TBIs) struggle with prospective memory (PM). While they know PM tasks are hard, they overestimate their ability to recall them, indicating poor self-monitoring for future task completion.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Rehabilitation Science
Background:
- Prospective memory (PM) is crucial for daily functioning, enabling individuals to remember future tasks.
- Adults with traumatic brain injuries (TBIs) frequently exhibit deficits in PM, impacting their independence.
- Metamemory, or the awareness of one's own memory, is closely linked to strategy use and effective PM performance.
Purpose of the Study:
- To investigate metamemory judgments of prospective memory in adults with moderate to severe TBI.
- To utilize an internet-based virtual reality tool for assessing PM and metamemory in a controlled environment.
Main Methods:
- Eighteen adults with TBI and 20 healthy controls (HCs) participated.
- Participants engaged in a virtual reality game ('Tying the String') designed to assess PM.
- Metamemory judgments were collected regarding the likelihood of recognizing cues and recalling tasks.
Main Results:
- Participants with TBI demonstrated poorer recall performance compared to HCs.
- While TBI participants adjusted metamemory expectations downward, this adjustment was insufficient to explain their performance.
- Healthy adults were generally underconfident, whereas adults with TBI were significantly overconfident in recalling tasks.
Conclusions:
- Adults with TBI possess a general awareness of PM task difficulty but exhibit poor monitoring of their actual performance.
- Impaired metamemory monitoring in TBI may hinder the effective use of memory strategies.
- Future interventions should leverage the link between metamemory monitoring and strategy use to improve PM in TBI populations.
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