ArticleBrain and behavior2025
Testosterone Administration Induces a Red Shift in Democrats.
Article in Brain and behavior, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
Funding
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Abstract
objectiveAn experiment was run to test if a testosterone administration would influence the political preferences of 136 healthy males.
methodSynthetic testosterone or placebo was administered to participants who identified the strength of their political affiliation.
resultsBefore the testosterone treatment, we found that weakly affiliated Democrats had 19% higher basal testosterone than those who identified strongly with the party (p = 0.015). When weakly affiliated Democrats received additional testosterone, the strength of their party affiliation fell by 12% (p = 0.01), and they reported 45% warmer feelings towards Republican candidates for president (p < 0.001). Testosterone administration did not affect political preferences for strongly affiliated Democrats or strong or weak Republicans.
conclusionOur results demonstrate that testosterone induces a "red shift" among weakly affiliated Democrats, providing evidence that testosterone affects political preferences.
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