4.2 Article

Autobiographical Cerebral Network Activation in Older Adults Before and After Reminiscence Therapy: A Preliminary Report

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BIOLOGICAL RESEARCH FOR NURSING
卷 -, 期 -, 页码 -

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SAGE PUBLICATIONS INC
DOI: 10.1177/10998004231210982

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autobiographical memory; functional MRI; older adults; reminiscence therapy

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This study examined the effects of reminiscence therapy on autobiographical memory networks in community-dwelling older adults using fMRI data. The results showed that reminiscence therapy reduced anxiety symptoms and activated key areas within the autobiographical memory network. The study suggests that reminiscence therapy has positive effects on the psychological well-being of older adults.
Introduction: Reminiscence therapy (RT), which engages individuals to evoke positive memories, has been shown to be effective in improving psychological well-being in older adults suffering from PTSD, depression, and anxiety. However, its impact on brain function has yet to be determined. This paper presents functional magnetic resonance imaging (fMRI) data to describe changes in autobiographical memory networks (AMN) in community-dwelling older adults. Methods: This pilot study used a within-subject design to measure changes in AMN activation in 11 older adults who underwent 6 weeks of RT. In the scanner, participants retrieved autobiographical memories which were either recent or remote, rehearsed or unrehearsed. Participants also underwent a clinical interview to assess changes in memory, quality of life, mental health, and affect. Findings: Compared to pretreatment, anxiety decreased (z = -2.014, p = .040) and activated significant areas within the AMN, including bilateral medial prefrontal cortex, left precuneus, right occipital cortex, and left anterior hippocampus. Conclusion: Although RT had subtle effects on psychological function in this sample with no evidence of impairments, including depression at baseline, the fMRI data support current thinking of the effect RT has on the AMN. Increased activation of right posterior hippocampus following RT is compatible with the Multiple Trace Theory Theory (Nadel & Moscovitch, 1997).

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