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‘Measurable biological footprint’: Study points to surprising source of psychopathic traits

Close-up of 3d rendering microscopic blue bacteria. Cavan Images/Getty Images (Cavan Images/Getty Images/Cavan Images RF)

A recent study published in Nature suggests a link between certain gut microbes and psychopathic personality traits.

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“We hypothesized that the composition of the gut and oral microbiota may be associated with subclinical psychopathic personality traits,” wrote the team, led by Carolina Costa from the University of Porto in Portugal.

Researchers found that individuals with higher levels of specific gut bacteria, including Allisonella, Prevotella, and Cloacibacillus evryensis, scored higher on a psychopathy survey.

While the exact mechanism behind this association is unclear, the study highlights a potential biological footprint for psychopathy beyond traditional neurocognitive models.

Further research is needed to explore the relationship between gut bacteria and psychopathic characteristics.

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Laurel Lee

Laurel Lee

Laurel Lee is a reporter for WDBO and produces various Ask the Expert shows on the weekend.