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Rawlsian maximin rule operates as a common cognitive anchor in distributive justice and risky decisions.

ABSTRACT: Distributive justice concerns the moral principles by which we seek to allocate resources fairly among diverse members of a society. Although the concept of fair allocation is one of the fundamental building blocks for societies, there is no clear consensus on how to achieve "socially just" allocations. Here, we examine neurocognitive commonalities of distributive judgments and risky decisions. We explore the hypothesis that people's allocation decisions for others are closely related to economic decisions for oneself at behavioral, cognitive, and neural levels, via a concern about the minimum, worst-off position. In a series of experiments using attention-monitoring and brain-imaging techniques, we investigated this "maximin" concern (maximizing the minimum possible payoff) via responses in two seemingly disparate tasks: third-party distribution of rewards for others, and choosing gambles for self. The experiments revealed three robust results: (i) participants' distributive choices closely matched their risk preferences-"Rawlsians," who maximized the worst-off position in distributions for others, avoided riskier gambles for themselves, whereas "utilitarians," who favored the largest-total distributions, preferred riskier but more profitable gambles; (ii) across such individual choice preferences, however, participants generally showed the greatest spontaneous attention to information about the worst possible outcomes in both tasks; and (iii) this robust concern about the minimum outcomes was correlated with activation of the right temporoparietal junction (RTPJ), the region associated with perspective taking. The results provide convergent evidence that social distribution for others is psychologically linked to risky decision making for self, drawing on common cognitive-neural processes with spontaneous perspective taking of the worst-off position.

SUBMITTER: Kameda T

PROVIDER: S-EPMC5081577 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Rawlsian maximin rule operates as a common cognitive anchor in distributive justice and risky decisions.

Kameda Tatsuya T Inukai Keigo K Higuchi Satomi S Ogawa Akitoshi A Kim Hackjin H Matsuda Tetsuya T Sakagami Masamichi M

Proceedings of the National Academy of Sciences of the United States of America 20160929 42

Distributive justice concerns the moral principles by which we seek to allocate resources fairly among diverse members of a society. Although the concept of fair allocation is one of the fundamental building blocks for societies, there is no clear consensus on how to achieve "socially just" allocations. Here, we examine neurocognitive commonalities of distributive judgments and risky decisions. We explore the hypothesis that people's allocation decisions for others are closely related to economi ...[more]

PMID: 27688764

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Project description:IntroductionJustice-involved adolescents are at high risk for sexually transmitted infections; one primary reason is co-occurring substance use. This study investigates the additive benefit of including alcohol and cannabis use content in a theory-based sexual risk reduction intervention, delivered using group-based motivational enhancement therapy.Study designThis study had a cluster randomized design, with randomization of single-sex clusters to 1 of 3 interventions.Setting/participantsParticipants were male and female justice-involved adolescents (N=460) residing in youth detention facilities. Data were collected from 2010 to 2014; analyses were completed in 2018-2019.InterventionAdolescents were randomized to 1 of 3 motivational enhancement therapy interventions: sexual risk reduction intervention, sexual risk reduction intervention with alcohol content, or sexual risk reduction intervention with alcohol and cannabis content.Main outcome measuresThe primary outcome was risky sexual behavior (aggregation of condom use and frequency of intercourse), measured every 3 months for 1 year. Secondary outcomes were theoretical mechanisms on which the intervention was based (condom use attitudes, self-efficacy, peer norms, and behavioral intentions), collected at baseline and post-test.ResultsRisky sexual behavior significantly decreased from baseline to 3-month follow-up (t=10.59, p<0.001) and this decrease was maintained 1 year later (t=9.04, p<0.001). Intervention was associated with improved values on all theoretical mechanisms. Although all outcomes improved over time, changes did not differ by intervention condition (p>0.29 for all). Comparisons to a historical, information-only, sexual risk reduction control arm conducted with a similar juvenile justice sample confirm the effectiveness of all 3 motivational enhancement therapy-based interventions.ConclusionsAll 3 interventions were associated with decreased sexual risk up to 1 year later, suggesting that the intervention modality (motivational enhancement therapy) may resonate with this population beyond the specific substance use content. This single-session manualized intervention can be readily disseminated to juvenile justice settings.Trial registrationThis study is registered at www.clinicaltrials.gov NCT01170260.

Project description:BackgroundAccidental injury and homicide, relatively common among adolescents, often follow risky behaviors; those are done more by boys and by adolescents with greater behavioral disinhibition (BD).HypothesisNeural processing during adolescents' risky decision-making will differ in youths with greater BD severity, and in males vs. females, both before cautious behaviors and before risky behaviors.Methodology/principal findings81 adolescents (PATIENTS with substance and conduct problems, and comparison youths (Comparisons)), assessed in a 2 x 2 design (PatientsComparisons x Male:Female) repeatedly decided between doing a cautious behavior that earned 1 cent, or a risky one that either won 5 or lost 10 cents. Odds of winning after risky responses gradually decreased. Functional magnetic resonance imaging captured brain activity during 4-sec deliberation periods preceding responses. Most neural activation appeared in known decision-making structures. PATIENTS, who had more severe BD scores and clinical problems than Comparisons, also had extensive neural hypoactivity. Comparisons' greater activation before cautious responses included frontal pole, medial prefrontal cortex, striatum, and other regions; and before risky responses, insula, temporal, and parietal regions. Males made more risky and fewer cautious responses than females, but before cautious responses males activated numerous regions more than females. Before risky behaviors female-greater activation was more posterior, and male-greater more anterior.Conclusions/significanceNeural processing differences during risky-cautious decision-making may underlie group differences in adolescents' substance-related and antisocial risk-taking. Patients reported harmful real-life decisions and showed extensive neural hypoactivity during risky-or-cautious decision-making. Males made more risky responses than females; apparently biased toward risky decisions, males (compared with females) utilized many more neural resources to make and maintain cautious decisions, indicating an important risk-related brain sexual dimorphism. The results suggest new possibilities for prevention and management of excessive, dangerous adolescent risk-taking.

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Rawlsian maximin rule operates as a common cognitive anchor in distributive justice and risky decisions.

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Rawlsian maximin rule operates as a common cognitive anchor in distributive justice and risky decisions.

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