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Social information and personal interests modulate neural activity during economic decision-making

[PDF] Moser_SocialInformation.pdf (842.2Kb)
Identificadores
URI: http://hdl.handle.net/10481/35049
DOI: 10.3389/fnhum.2014.00031
ISSN: 1662-5161
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Autor
Moser, Anna; Gaertig, Celia; Ruz Cámara, María
Editorial
Frontiers Foundation
Materia
Positive and negative interpersonal information
 
Economic decision-making
 
Fairness
 
Uncertainity
 
MFN
 
P300
 
Fecha
2014
Referencia bibliográfica
Moser, A.; Gaerting, C.; Ruz, M. Social information and personal interests modulate neural activity during economic decision-making. Frontiers in Human Neuroscience, 8: 31 (2014). [http://hdl.handle.net/10481/35049]
Patrocinador
Financial support to this research came from the Spanish Ministry of Science and Innovation through a “Ramón y Cajal” research fellowship (RYC-2008-03008) and grant PSI2010-16421 to María Ruz, and also from the European Commission through a “Leonardo da Vinci” fellowship (DE/10/LLP-LdV/PLM/282611) to Anna Moser.
Resumen
In the present study we employed electrophysiological recordings to investigate the levels of processing at which positive and negative descriptions of other people bias social decision-making in a game in which participants accepted or rejected economic offers. Besides social information, we manipulated the fairness of the assets distribution, whether offers were advantageous or not for the participant and the uncertainty of the game context. Results show that a negative description of the interaction partner enhanced the medial frontal negativity (MFN) in an additive manner with fairness evaluations. The description of the partner interacted with personal benefit considerations, showing that this positive or negative information only biased the evaluation of offers when they did not favor the participant. P300 amplitudes were enhanced by advantageous offers, suggesting their heightened motivational significance at later stages of processing. Throughout all stages, neural activity was enhanced with certainty about the personal assignments of the split. These results provide new evidence on the importance of interpersonal information and considerations of self-interests relative to others in decision-making situations.
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