Key result
Amnestic MCI links to reduced delay of gratification, correlating with medial frontal cortex volumes.
Why the study?
Self-perceptions of delay of gratification in mild cognitive impairment had not been examined longitudinally, and brain volume changes linked to them were unknown.
Are self-reported delay of gratification scores and brain volumes correlated in patients with amnestic MCI compared to healthy controls?
Observational
Are self-reported delay of gratification scores and brain volumes correlated in patients with amnestic MCI compared to healthy controls?
Self-reported delay of gratification regarding money choices is lower in aMCI patients and correlates with medial frontal cortex volumes, suggesting its potential utility in psychological assessment.
May support delay-of-gratification assessment in aMCI; leaves open validation for clinical use or frontal-volume monitoring.
Self-perceptions of delay of gratification in MCI have not been examined longitudinally and we know nothing about brain volume changes that might be linked to them. For the first time, amnestic MCI patients' reports of delay of gratification were measured with the Delaying Gratification Inventory (DGI) money subscale at baseline, 6, and 12 months. Results revealed statistically significant differences in aMCI and matched healthy controls regarding their DGI money subscale scores, with lower delay of gratification in aMCI. Correlations between brain volumes and delay of gratification reports at all 3 time points support the importance mainly of the left and right medial frontal cortices. These preliminary findings show that self-reports may be useful in psychological assessment in older adults as they differentiate MCI from healthy individuals. Future studies should further investigate personality and sociocultural factors in the formation of such statements in healthy as well as clinical populations.
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Vaitsa Giannouli (2025) conducted an observational in Amnestic Mild Cognitive Impairment (aMCI). Amnestic Mild Cognitive Impairment (aMCI) vs. Matched healthy controls was evaluated on Delaying Gratification Inventory (DGI) money subscale scores and brain volume correlations. Amnestic MCI was associated with significantly lower self-reported delay of gratification on the DGI money subscale compared to healthy controls, which correlated with medial frontal cortex volumes.
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