Effort increases sensitivity to reward and loss magnitude in the human brain
| Autor: | Katarina Kuss, Klaus Fliessbach, Bernd Weber, Peter Trautner, Armin Falk, Julen Hernandez Lallement |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Adolescent Cognitive Neuroscience Experimental and Cognitive Psychology Nucleus accumbens Brain mapping Reward processing Young Adult physiology [Brain] methods [Magnetic Resonance Imaging] Reward Task Performance and Analysis medicine Image Processing Computer-Assisted Humans ddc:610 Anterior cingulate cortex Brain Mapping medicine.diagnostic_test Brain General Medicine Human brain Original Articles Magnetic Resonance Imaging medicine.anatomical_structure Female methods [Photic Stimulation] Psychology Functional magnetic resonance imaging Sensitivity (electronics) Neuroscience psychological phenomena and processes Photic Stimulation |
| Zdroj: | Social cognitive and affective neuroscience 9(3), 342-349 (2012). doi:10.1093/scan/nss147 |
| DOI: | 10.1093/scan/nss147 |
| Popis: | It is ecologically adaptive that the amount of effort invested to achieve a reward increases the relevance of the resulting outcome. Here, we investigated the effect of effort on activity in reward and loss processing brain areas by using functional magnetic resonance imaging. In total, 28 subjects were endowed with monetary rewards of randomly varying magnitude after performing arithmetic calculations that were either difficult (high effort), easy (low effort) or already solved (no effort). Subsequently, a forced donation took place, where a varying part of the endowment was transferred to a charity organization, causing a loss for the subject. Results show that reward magnitude positively modulates activity in reward-processing brain areas (subgenual anterior cingulate cortex and nucleus accumbens) only in the high effort condition. Furthermore, anterior insular activity was positively modulated by loss magnitude only after high effort. The results strongly suggest an increasing relevance of outcomes with increasing previous effort. |
| Databáze: | OpenAIRE |
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