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Functional connectivity with ventromedial prefrontal cortex reflects subjective value for social rewards. Social Cognitive and Affective Neuroscience
, 2014
"... According to many studies, the ventromedial prefrontal cortex (VMPFC) encodes the subjective value of disparate rewards on a common scale. Yet, a host of other reward factorslikely represented outside of VMPFCmust be integrated to construct such signals for valuation. Using functional magnetic reson ..."
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According to many studies, the ventromedial prefrontal cortex (VMPFC) encodes the subjective value of disparate rewards on a common scale. Yet, a host of other reward factorslikely represented outside of VMPFCmust be integrated to construct such signals for valuation. Using functional magnetic resonance imaging (fMRI), we tested whether the interactions between posterior VMPFC and functionally connected brain regions predict subjective value. During fMRI scanning, participants rated the attractiveness of unfamiliar faces. We found that activation in dorsal anterior cingulate cortex, anterior VMPFC and caudate increased with higher attractiveness ratings. Using data from a post-scan task in which participants spent money to view attractive faces, we quantified each individuals subjective value for attractiveness. We found that connectivity between posterior VMPFC and regions frequently modulated by social informationincluding the temporal-parietal junction (TPJ) and middle temporal gyruswas correlated with individual differences in subjective value. Crucially, these additional regions explained unique variation in subjective value beyond that extracted from value regions alone. These findings indicate not only that posterior VMPFC interacts with additional brain regions during valuation, but also that these additional regions carry information employed to construct the subjective value for social reward.
A NEUROECONOMIC APPROACH OF TAX BEHAVIOR
"... Governments around the world register substantial losses due to tax non-compliance behavior. Whether it is tax avoidance or tax evasion, non-compliance has repercussions on the whole society because it mitigates the quality of the provision of public goods. Nevertheless, the level of tax compliance ..."
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Governments around the world register substantial losses due to tax non-compliance behavior. Whether it is tax avoidance or tax evasion, non-compliance has repercussions on the whole society because it mitigates the quality of the provision of public goods. Nevertheless, the level of tax compliance is significantly higher than the classical tax evasion model of
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, 2011
"... doi: 10.3389/fnbeh.2011.00070 Sleep deprivation alters valuation signals in the ventromedial prefrontal cortex ..."
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doi: 10.3389/fnbeh.2011.00070 Sleep deprivation alters valuation signals in the ventromedial prefrontal cortex
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, 2011
"... doi: 10.3389/fnhum.2011.00087 Nucleus accumbens mediates relative motivation for rewards in the absence of choice ..."
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doi: 10.3389/fnhum.2011.00087 Nucleus accumbens mediates relative motivation for rewards in the absence of choice
Individual differences in the neural signature of subjective value among older adults
"... Some healthy older adults show departures from standard decision-making patterns exhibited by younger adults. We asked if such departures are uniform or if heterogeneous aging processes can designate which older adults show differing decision patterns. Thirty-three healthy older adults with varying ..."
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Some healthy older adults show departures from standard decision-making patterns exhibited by younger adults. We asked if such departures are uniform or if heterogeneous aging processes can designate which older adults show differing decision patterns. Thirty-three healthy older adults with varying decision-making patterns on a complex decision task (the Iowa Gambling Task) completed an intertemporal choice task while undergoing functional magnetic resonance imaging. We examined whether value representation in the canonical valuation network differed across older adults based on complex decision-making ability. Older adults with advantageous decision patterns showed increased activity in the valuation net-work, including the ventromedial prefrontal cortex (VMPFC) and striatum. In contrast, older adults with disadvantageous decision patterns showed reduced or absent activation in the VMPFC and striatum, and these older adults also showed greater blood oxygen level dependent signal temporal variability in the striatum. Our results suggest that a reduced repre-sentation of value in the brain, possibly driven by increased neural noise, relates to suboptimal decision-making in a subset of older adults, which could translate to poor decision-making in many aspects of life, including finance, health and long-term care. Understanding the connection between suboptimal decision-making and neural value signals is a step toward mitigating age-related decision-making impairments. Key words: aging; decision-making; ventromedial prefrontal cortex; Iowa Gambling Task; value
1 The State of Global Sustainable Food Production, Green Supply Chain Management and Decision Making: A Multidisciplinary
, 2013
"... The state of global sustainable food production, green supply chain management and decision making: A multidisciplinary review ..."
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The state of global sustainable food production, green supply chain management and decision making: A multidisciplinary review
Coast- Queensland/Australia
, 2013
"... The state of global sustainable food production, green supply chain management and decision making: A multidisciplinary review ..."
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The state of global sustainable food production, green supply chain management and decision making: A multidisciplinary review
