Eduard Vieta

Eduard Vieta

Eduard Vieta
Cargo

Scientific Director of the Centre for Biomedical Research in Mental Health Network (CIBERSAM). Head of the Psychiatry and Psychology Department at the Hospital Clínic de Barcelona and lecturer at the University of Barcelona

Reaction: study in mice associates punctuated sleep deprivation with antidepressant mechanisms

Researchers at Northwestern University in the United States have studied the effect of a temporary decrease in sleep on the mood of mice. According to their results, the animals became more hyperactive and hypersexual for a few hours. In addition, the occasional lack of sleep had an antidepressant effect that lasted for a few days and is explained by an increase in the release of dopamine. The results are published in the journal Neuron.

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Reactions: 30 researchers challenge study questioning the hypothesis that low serotonin levels cause depression, published last year

A commentary published last Friday in the journal Molecular Psychiatry, signed by more than 30 researchers, challenges the conclusions of the systematic review published in the same journal in July 2022, in which the authors concluded that there was no evidence that low serotonin levels cause depression. The researchers in the new paper blame the earlier study for flaws in methodology, among other weaknesses.

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