Behavioral and Electrophysiological Arguments in Favor of a Relationship between Impulsivity, Risk-Taking, and Success on the Iowa Gambling Task.

Fiche publication

Date publication

septembre 2019

Journal

Brain sciences

Auteurs

Membres identifiés du Cancéropôle Est :
Pr HAFFEN Emmanuel , Pr TROJAK Benoît

Tous les auteurs :
Giustiniani J, Joucla C, Bennabi D, Nicolier M, Chabin T, Masse C, Trojak B, Vandel P, Haffen E, Gabriel D

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/31554273

Résumé

The aim of the present study was to investigate the relationship between trait impulsivity, risk-taking, and decision-making performance. We recruited 20 healthy participants who performed the Iowa Gambling Task (IGT) and the Balloon Analog Risk Task (BART) to measure decision-making and risk-taking. The impulsivity was measured by the Barratt Impulsiveness Scale. Resting-state neural activity was recorded to explore whether brain oscillatory rhythms provide important information about the dispositional trait of impulsivity. We found a significant correlation between the ability to develop a successful strategy and the propensity to take more risks in the first trials of the BART. Risk-taking was negatively correlated with cognitive impulsivity in participants who were unable to develop a successful strategy. Neither risk-taking nor decision-making was correlated with cortical asymmetry. In a more exploratory approach, the group was sub-divided in function of participants' performances at the IGT. We found that the group who developed a successful strategy at the IGT was more prone to risk, whereas the group who failed showed a greater cognitive impulsivity. These results emphasize the need for individuals to explore their environment to develop a successful strategy in uncertain situations, which may not be possible without taking risks.