L-DOPA and oxytocin influence the neural correlates of performance monitoring for self and others

What Was Tested

Researchers studied Oxytocin in this randomized controlled trial publication.

The ability to monitor the consequences of their actions for others is imperative for flexible and adaptive behavior, and allows them to act in a (pro)social manner.

Yet, little is known about the neurochemical mechanisms underlying alterations in (pro)social performance monitoring.

Who Took Part

According to the abstract, 30 volunteers were involved.

PubMed tags the participants as men only.

How the Study Was Run

In design terms this was a randomized, double-blind, placebo-controlled and crossover study.

The volunteers were allocated by chance, so the Oxytocin group and the comparison group should start out alike.

Blinding on both sides kept the volunteers and researchers unaware of who received Oxytocin.

A placebo (an inactive look-alike) gave the Oxytocin group a baseline to be compared against.

In the crossover set-up each of the volunteers took both Oxytocin and the comparison in turn, acting as their own control.

What Was Measured

The subject headings attached to it are Levodopa, Oxytocin, Dopamine, Brain, Adaptation, Psychological and Magnetic Resonance Imaging.

Author keywords: Functional magnetic resonance imaging (fMRI), Prosocial and Social performance monitoring.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Oxytocin in 30 volunteers.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

Its findings take up roughly 6 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2024 (Psychopharmacology), a journal based in Germany.

More context: the Oxytocin compound page, all human trials.