The Neuroeconomics of Risk, Loss and Delay: Evidence from Individuals with Mild Cognitive Impairment
摘要
Mild Cognitive Impairment (MCI), often a precursor to more severe cognitive decline, affects decision-making processes, yet its impact on underlying neuroeconomic behaviours remains understudied. The present study aimed to assess how individuals with MCI differ from cognitively normal adults in risky decision-making, loss aversion and delay discounting. 57 middle-aged adults (aged 40–65 years) were administered the Addenbrooke’s Cognitive Examination (ACE-III) to classify participants as having MCI (score < 84) or not having MCI (score ≥ 84). Participants also completed the CogLab Risky Decision task, the Loss Aversion Scale, and the Monetary Choice Questionnaire. Independent t-tests were used to examine differences between the groups. Significant differences were found be-tween individuals with and without MCI. Individuals with MCI exhibited higher risk-taking, lower loss aversion, and greater delay discounting. These results suggest that MCI is associated with impairment across these variables. These impairments may stem from the cognitive deficits associated with MCI. The study highlights the importance of understanding neuroeconomic variables in MCI populations, as such deficits in decision-making could impact daily life and independence. Interventions targeting these cognitive impairments may help improve decision-making, cognitive performance and overall quality of life for individuals with MCI.