Journal
AMERICAN JOURNAL OF GERIATRIC PSYCHIATRY
Volume 27, Issue 11, Pages 1219-1227Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jagp.2019.05.023
Keywords
Postoperative working memory training; older adults; cognitive functioning; mood or emotional functioning; transfer effects
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Objectives: Cognitive and mood changes can affect postoperative recovery in hospitalized older adults undergoing major surgical procedures, but few studies have considered postoperative cognitive interventions to sustain such patients' cognitive functioning and mood. The aim of this pilot study was to assess the efficacy of working memory training in improving cognitive functioning and mood, or emotional functioning, in older adults undergoing major surgery. Methods: Thirty-four older adults (from 64 to 75 years of age) hospitalized for partial or total arthroplasty of the knee were randomly assigned to either a trained group (N = 18) or an active control group (N = 16). The former received working memory training during the postoperative period, while the latter engaged in alternative activities. In addition to specific training gains in a working memory task similar to the one used in the training (criterion task), transfer effects to cognitive abilities (short-and long-term memory, and cognitive inhibition), and mood or emotional functioning (signs of depression or anxiety) were investigated. Results: Immediately after the training, results showed a main effect of group (in favor of the trained group) in the criterion task, in one of the short-term memory measures, and in cognitive inhibition. In addition, only the trained group showed a decrease in depression and anxiety scores. Conclusion: The results of this pilot study suggest that cognitive training targeting working memory administered in the postoperative period after major surgery can sustain older adults' cognitive and emotional functioning, and especially their mood.
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