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View article: Investigating the effects of single-dose intranasal testosterone on economic preferences in a large randomized trial of men
Investigating the effects of single-dose intranasal testosterone on economic preferences in a large randomized trial of men Open
There is conflicting evidence on whether testosterone affects economic preferences such as risk taking, fairness, and altruism, with most evidence coming from correlational studies or small testosterone administration studies. To credibly …
ChatGPT Decreases Idea Diversity in Brainstorming Open
Lee and Chung explore how ChatGPT augments human creativity in brainstorming. In a series of experiments, they randomized participants to complete a range of creative challenges, either with or without the help of ChatGPT. These challenges…
Multi-organ imaging-derived polygenic indexes for brain and body health Open
The UK Biobank (UKB) imaging project is a crucial resource for biomedical research, but is limited to 100,000 participants due to cost and accessibility barriers. Here we used genetic data to predict heritable imaging-derived phenotypes (I…
Science for policy to protect children in cyberspace Open
Cross-disciplinary partnerships are needed to formulate policies that account for developmental vulnerabilities
View article: Neuroanatomical correlates of genetic risk for obesity in children
Neuroanatomical correlates of genetic risk for obesity in children Open
Obesity has a strong genetic component, with up to 20% of variance in body mass index (BMI) being accounted for by common polygenic variation. Most genetic polymorphisms associated with BMI are related to genes expressed in the central ner…
Human brain anatomy reflects separable genetic and environmental components of socioeconomic status Open
Socioeconomic status (SES) correlates with brain structure, a relation of interest given the long-observed relations of SES to cognitive abilities and health. Yet, major questions remain open, in particular, the pattern of causality that u…
Pattern learning reveals brain asymmetry to be linked to socioeconomic status Open
Socioeconomic status (SES) anchors individuals in their social network layers. Our embedding in the societal fabric resonates with habitus, world view, opportunity, and health disparity. It remains obscure how distinct facets of SES are re…
Many Labs 4: Failure to Replicate Mortality Salience Effect With and Without Original Author Involvement Open
Interpreting a failure to replicate is complicated by the fact that the failure could be due to the original finding being a false positive, unrecognized moderating influences between the original and replication procedures, or faulty impl…
View article: Determining the effects of training duration on the behavioral expression of habitual control in humans: a multilaboratory investigation
Determining the effects of training duration on the behavioral expression of habitual control in humans: a multilaboratory investigation Open
It has been suggested that there are two distinct and parallel mechanisms for controlling instrumental behavior in mammals: goal-directed actions and habits. To gain an understanding of how these two systems interact to control behavior, i…
View article: Does a Single Dose of Testosterone Increase Competitiveness, Confidence and Financial Risk-taking in Men?
Does a Single Dose of Testosterone Increase Competitiveness, Confidence and Financial Risk-taking in Men? Open
The sex steroid hormone testosterone regulates behaviors such as aggression and displays of dominance in male non-human animals. According to the Challenge Hypothesis, these effects arise from context-sensitive testosterone increases that …
Human brain anatomy reflects separable genetic and environmental components of socioeconomic status Open
Recent studies report that socioeconomic status (SES) correlates with brain structure. Yet, such findings are variable and little is known about underlying causes. We present a well-powered voxel-based analysis of grey matter volume (GMV) …
View article: Determining the effects of training duration on the behavioral expression of habitual control in humans: a multi-laboratory investigation
Determining the effects of training duration on the behavioral expression of habitual control in humans: a multi-laboratory investigation Open
It has been suggested that there are two distinct and parallel mechanisms for controlling instrumental behavior in mammals: goal-directed actions and habits. To gain an understanding of how these two systems interact to control behavior, i…
Do sex hormones at birth predict later-life economic preferences? Evidence from a pregnancy birth cohort study:Hormones at birth and preferences Open
Economic preferences may be shaped by exposure to sex hormones around birth. Prior studies of economic preferences and numerous other phenotypic characteristics use digit ratios (2D: 4D), a purported proxy for prenatal testosterone exposur…
Do sex hormones at birth predict later-life economic preferences? Evidence from a pregnancy birth cohort study Open
Economic preferences may be shaped by exposure to sex hormones around birth. Prior studies of economic preferences and numerous other phenotypic characteristics use digit ratios (2D : 4D), a purported proxy for prenatal testosterone exposu…
The default network of the human brain is associated with perceived social isolation Open
Humans survive and thrive through social exchange. Yet, social dependency also comes at a cost. Perceived social isolation, or loneliness, affects physical and mental health, cognitive performance, overall life expectancy, and increases vu…
View article: Many Labs 5: Registered Multisite Replication of the Tempting-Fate Effects in Risen and Gilovich (2008)
Many Labs 5: Registered Multisite Replication of the Tempting-Fate Effects in Risen and Gilovich (2008) Open
Risen and Gilovich (2008) found that subjects believed that “tempting fate” would be punished with ironic bad outcomes (a main effect), and that this effect was magnified when subjects were under cognitive load (an interaction). A previous…
Many Labs 5: Replication of van Dijk, van Kleef, Steinel, and van Beest (2008) Open
As part of the Many Labs 5 project, we ran a replication of van Dijk, van Kleef, Steinel, and van Beest’s (2008) study examining the effect of emotions in negotiations. They reported that when the consequences of rejection were low, subjec…