Delay discounting in mild cognitive impairment

Introduction: Patients with mild cognitive impairment (MCI) may make suboptimal decisions particularly in complex situations, and this could be due to temporal discounting, the tendency to prefer immediate rewards over delayed but larger rewards. The present study proposes to evaluate intertemporal preferences in MCI patients as compared to healthy controls. Method: Fifty-five patients with MCI and 57 healthy controls underwent neuropsychological evaluation and a delay discounting questionnaire, which evaluates three parameters: hyperbolic discounting (k), the percentage of choices for delayed and later rewards (%LL), and response consistency (Acc). Results: No significant differences were found in the delay discounting questionnaire between MCI patients and controls for the three reward sizes considered, small, medium, and large, using both k and %LL parameters. There were also no differences in the response consistency, Acc, between the two groups. Conclusions: Patients with MCI perform similarly to healthy controls in a delay discounting task. Memory deficits do not notably affect intertemporal preferences.

Tipo Pubblicazione: 
Articolo
Author or Creator: 
Coelho, Sara
Guerreiro, Manuela
Chester, Catarina
Silva, Dina
Maroco, João
Paglieri, Fabio
de Mendonça, Alexandre
Publisher: 
Swets & Zeitlinger, Lisse , Paesi Bassi
Source: 
Neuropsychology, development, and cognition. Section A, Journal of clinical and experimental neuropsychology (2016): 1–11. doi:10.1080/13803395.2016.1226269
info:cnr-pdr/source/autori:Coelho, Sara; Guerreiro, Manuela; Chester, Catarina; Silva, Dina; Silva, Dina; Maroco, João; Paglieri, Fabio; de Mendonça, Alexandre/titolo:Delay discounting in mild cognitive impairment/doi:10.1080/13803395.2016.1226269/rivista
Date: 
2016
Resource Identifier: 
http://www.cnr.it/prodotto/i/366460
https://dx.doi.org/10.1080/13803395.2016.1226269
info:doi:10.1080/13803395.2016.1226269
http://www.scopus.com/record/display.url?eid=2-s2.0-84987657429&origin=inward
Language: 
Eng
ISTC Author: 
Ritratto di Fabio Paglieri
Real name: