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Title: Comparing semantic autobiographical memory performance in and out of post-traumatic amnesia.
Epworth Authors: Roberts, Caroline
Spitz, Gershon
Ponsford, Jennie
Other Authors: Mundy, Matthew
Keywords: Retrograde Amnesia
Anterograde Amnesia
Memory Consolidation
Traumatic Brain Injury
Semantic Autobiographical Memory
Post-Traumatic Amnesia
Demographic-Related Variables
Injury-Related Variables
Childhood Memories
Recent Lifetime Memories
Early Adult Memories
Predicting Recovery
Westmead Post-Traumatic Amnesia Scale
Personal Semantic Schedule
Autobiographical Memory Interview
Time To Emerge
Paired Sample Tests
Correlational Analyses
Personal Semantic Memory
PS Memory
Neurosciences Clinical Institute, Epworth HealthCare, Victoria, Australia
Monash-Epworth Rehabilitation Research Centre, Epworth HealthCare, Victoria, Australia
Issue Date: Jun-2017
Citation: Epworth Research Institute Research Week 2017; Poster 39: pp 63
Conference: Epworth Research Institute Research Week 2017
Conference Location: Epworth Research Institute, Victoria, Australia
Abstract: OBJECTIVE: Observations of 'shrinking retrograde amnesia' following traumatic brain injury (TBI) date back to the late 1800s, yet there have been no published longitudinal studies using an objective measure to compare semantic autobiographical memory (AM) within the same participants in and out of post-traumatic amnesia (PTA). The purpose of this study was to establish whether a negative gradient (relative preservation of childhood memories over more recent lifetime periods) exists in PTA and its association with demographic and injury-related variables. This has implications for predicting recovery, understanding the relationship between anterograde and retrograde amnesia during PTA, and theories of memory consolidation. PARTICIPANTS AND METHODS: 14 patients with TBI monitored using the Westmead Post-Traumatic Amnesia Scale were administered the Personal Semantic Schedule of the Autobiographical Memory Interview on a single occasion whilst in PTA and within two weeks of emergence. Change in semantic AM with PTA status across Childhood, Early Adult and Recent lifetime periods was examined using paired sample tests, and correlational analyses conducted with time to emergence. RESULTS: Semantic AM was significantly lower in PTA than out of PTA (overall and within each time period, 0 <.001). There was a significant trend whereby those who took fewer days to emerge post-interview scored better overall. CONCLUSIONS. These preliminary results suggest a global impairment in PS memory across lifetime periods in PTA. PS memory performance may be sensitive to the diffuse nature of TBI, and therefore function as a clinically valuable indicator of the likely time to emerge from PTA.
Type: Conference Poster
Affiliated Organisations: Monash Institute of Cognitive and Clinical Neuroscience, School of Psychological Sciences, Monash University, Victoria, Australia
Type of Clinical Study or Trial: Observational Study
Appears in Collections:Neurosciences

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