Altruism costs—the cheap signal from amygdala
| Autor: | Marcus Sundberg, Martin Ingvar, Katarina Gospic, Predrag Petrovic, Johanna Maeder, Gunnar Isacsson, Peter Fransson, Anders Karlström |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Male
Cognitive Neuroscience media_common.quotation_subject Control (management) Decision Making Emotions Experimental and Cognitive Psychology Altruism Outcome (game theory) Amygdala hypothetical bias Sex Factors Willingness to pay Bias Reward medicine Image Processing Computer-Assisted Humans media_common Brain Mapping fMRI General Medicine Original Articles amygdala Public good Magnetic Resonance Imaging Oxygen medicine.anatomical_structure Donation Regression Analysis Female Psychology Insula Social psychology Photic Stimulation |
| Zdroj: | Social Cognitive and Affective Neuroscience |
| ISSN: | 1749-5024 1749-5016 |
| Popis: | When people state their willingness to pay for something, the amount usually differs from the behavior in a real purchase situation. The discrepancy between a hypothetical answer and the real act is called hypothetical bias. We investigated neural processes of hypothetical bias regarding monetary donations to public goods using fMRI with the hypothesis that amygdala codes for real costs. Real decisions activated amygdala more than hypothetical decisions. This was observed for both accepted and rejected proposals. The more the subjects accepted real donation proposals the greater was the activity in rostral anterior cingulate cortex-a region known to control amygdala but also neural processing of the cost-benefit difference. The presentation of a charitable donation goal evoked an insula activity that predicted the later decision to donate. In conclusion, we have identified the neural mechanisms underlying real donation behavior, compatible with theories on hypothetical bias. Our findings imply that the emotional system has an important role in real decision making as it signals what kind of immediate cost and reward an outcome is associated with. |
| Databáze: | OpenAIRE |
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