Memory Self‐Appraisal and Cerebral Glucose Metabolism in Age‐Associated Memory Impairment
作者:
Gary Small,
Scott Komo,
Asenath Rue,
Andrea Kaplan,
Mark Mandelkern,
期刊:
American Journal of Geriatric Psychiatry
(OVID Available online 1995)
卷期:
Volume 3,
issue 2
页码: 132-143
ISSN:1064-7481
年代: 1995
出版商: OVID
数据来源: OVID
摘要:
The authors used positron emission tomography to measure cerebral glucose metabolism in 43 people with age-associated memory impairment to determine relationships between memory self-appraisal and brain function. People with lower frontal metabolism during a resting state reported more frequent prior mnemonics usage, a measure of memory self-appraisal. A multiple regression analysis indicated that reported mnemonics usage was the most significant predictor of left (P = 0.0004) and right (P = 0.0014) frontal metabolism. These models indicated that mnemonics usage, along with depression ratings, accounted for 39% of left frontal lobe function and, along with visual spatial memory, accounted for 40% of right frontal metabolism. These results suggest that mnemonics usage may compensate for subtle frontal dysfunction or reflect greater efficiency of memory processing.
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