2026-05-20T23:32:16Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/227162024-11-28T20:36:32Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16967col_20.500.12105_16981
Repisalud
author
Martinez-Selva, Jose M
author
Munoz, Miguel A
author
Sanchez-Navarro, Juan P
author
Walteros, Cesar
author
Montoya, Pedro
2024-09-10T13:08:56Z
2024-09-10T13:08:56Z
2019-09-03
Martinez-Selva JM, Muñoz MA, Sanchez-Navarro JP, Walteros C, Montoya P. Time Course of the Neural Activity Related to Behavioral Decision-Making as Revealed by Event-Related Potentials. Front Behav Neurosci. 2019 Sep 03;13:191.
10.3389/fnbeh.2019.00191
1662-5153
Frontiers in Behavioral Neuroscience
http://hdl.handle.net/20.500.13003/15064
31551726
L629462384
2-s2.0-85072820507
https://hdl.handle.net/20.500.12105/22716
483537500001
Objective: To study the time course of the electrocortical activity evoked by gains and losses in the Iowa Gambling Task (IGT), the brain sources of this electrical activity, and its association with behavioral parameters of task performance in order to achieve a better knowledge of decision-making processes. Method: Event-related potentials (ERPs) were obtained from a 64-channel EEG in 25 participants when performing the IGT. Brain source localization analyses of the ERP components were also assessed. Results: ERP amplitudes were sensitive to gains and losses. An early fronto-central negativity was elicited when feedback was provided for both gains and losses, and correlated with the number of gains at FCz and with the number of both gains and losses at Cz. The P200 component had larger amplitudes to losses and correlated positively with the number of losses. Feedback related negativity (FRN) was higher at frontal, temporal and occipital electrodes in trials with monetary losses. In addition, trials with monetary losses elicited larger P300 magnitudes than trials with monetary gains at all electrode localizations. Conclusions: All ERP components (except P300) were related to participants' performance in the IGT. Amplitudes of P200 and P300 were associated with the conscious recognition of the error during the decision-making. Performance data and source analysis underline the importance of the medial prefrontal cortex when processing feedback about monetary losses in the IGT.
eng
Decision making
Evoked potentials
Feedback learning
P200 evoked potentials
P300 component
Time Course of the Neural Activity Related to Behavioral Decision-Making as Revealed by Event-Related Potentials
research article