Stimulus Reward Value Interacts with Training-induced Plasticity in Inhibitory Control

被引:4
作者
De Pretto, Michael [1 ]
Hartmann, Lea [1 ]
Garcia-Burgos, David [2 ]
Sallard, Etienne [1 ]
Spierer, Lucas [1 ]
机构
[1] Univ Fribourg, Fac Sci & Med, Neurol Unit, Med Sect, CH-1700 Fribourg, Switzerland
[2] Univ Fribourg, Dept Psychol, Unit Clin Psychol & Psychotherapy, CH-1700 Fribourg, Switzerland
基金
瑞士国家科学基金会;
关键词
inhibitory control; plasticity; training; food cues; ERP; source estimations; STOP-SIGNAL TASK; HUMAN ORBITOFRONTAL CORTEX; ANTERIOR CINGULATE CORTEX; DISTRACTOR DEVALUATION; INDIVIDUAL-DIFFERENCES; RESPONSE-INHIBITION; FOOD; CONFLICT; IMPULSIVITY; CHOCOLATE;
D O I
10.1016/j.neuroscience.2019.10.010
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Training inhibitory control, the ability to suppress motor or cognitive processes, not only enhances inhibition processes, but also reduces the perceived value and behaviors toward the stimuli associated with the inhibition goals during the practice. While these findings suggest that inhibitory control training interacts with the aversive and reward systems, the underlying spatio-temporal brain mechanisms remain unclear. We used electrical neuroimaging analyses of event-related potentials to examine the plastic brain modulations induced by training healthy participants to inhibit their responses to rewarding (pleasant chocolate) versus aversive food pictures (unpleasant vegetables) with Go/NoGo tasks. Behaviorally, the training resulted in a larger improvement in the aversive than in the rewarding NoGo stimuli condition, suggesting that reward responses impede inhibitory control learning. The electrophysiological results also revealed an interaction between reward responses and inhibitory control plasticity: we observed different effects of practice on the rewarding vs. aversive NoGo stimuli at 200 ms post-stimulus onset, when the conflicts between automatic response tendency and task demands for response inhibition are processed. Electrical source analyses revealed that this effect was driven by an increase in right orbito-cingulate and a decrease in temporo-parietal activity to the rewarding NoGo stimuli and the reverse pattern to the aversive stimuli. Our collective results provide direct neurophysiological evidence for interactions between stimulus reward value and executive control training, and suggest that changes in the assessment of stimuli with repeated motoric inhibition likely follow from associative learning and behavior-stimulus conflicts reduction mechanisms. (C) 2019 IBRO. Published by Elsevier Ltd. All rights reserved.
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页码:82 / 94
页数:13
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