Medial prefrontal cortex reacts to unfairness if this damages the self: a tDCS study.
Civai, C, Miniussi, C and Rumiati, RI (2014). Medial prefrontal cortex reacts to unfairness if this damages the self: a tDCS study. Social Cognitive and Affective Neuroscience. 10 (8), pp. 1054-1060.
|Authors||Civai, C, Miniussi, C and Rumiati, RI|
Neural correlates of unfairness perception depend on who is the target of the unfair treatment. These previous findings suggest that the activation of medial prefrontal cortex (MPFC) is related to unfairness perception only when the subject of the measurement is also the person affected by the unfair treatment. We aim at demonstrating the specificity of MPFC involvement using transcranial direct current stimulation (tDCS), a technique that induces cortical excitability changes in the targeted region. We use a modified version of the Ultimatum Game, in which responders play both for themselves (myself-MS condition) and on behalf of an unknown third-party (TP condition), where they respond to unfairness without being the target of it. We find that the application of cathodal tDCS over MPFC decreases the probability of rejecting unfair offers in MS, but not in TP; conversely, the same stimulation increases the probability of rejecting fair offers in TP, but not in MS. We confirm the hypothesis that MPFC is specifically related to processing unfairness when the self is involved, and discuss possible explanations for the opposite effect of the stimulation in TP.
|Keywords||Prefrontal Cortex; Humans; Electrodes; Ego; Morals; Social Perception; Psychomotor Performance; Games, Experimental; Adolescent; Adult; Female; Young Adult; Transcranial Direct Current Stimulation; MPFC; Ultimatum Game; non-invasive brain stimulation; self-other; unfairness; Adolescent; Adult; Ego; Electrodes; Female; Games, Experimental; Humans; Morals; Prefrontal Cortex; Psychomotor Performance; Social Perception; Transcranial Direct Current Stimulation; Young Adult; 1109 Neurosciences; 1701 Psychology; 1702 Cognitive Science; Experimental Psychology|
|Journal||Social Cognitive and Affective Neuroscience|
|Journal citation||10 (8), pp. 1054-1060|
|Publisher||Oxford University Press (OUP)|
|Digital Object Identifier (DOI)||doi:10.1093/scan/nsu154|
|30 Dec 2014|
|Publication process dates|
|Deposited||12 Oct 2017|
|Accepted||01 Aug 2015|
|Accepted author manuscript|
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