The serotonergic raphe nuclei modulate neuronal function typically over minutes or hours. The authors report that raphe nuclei affect odor responses in output neurons of the olfactory bulb at sub ...

This study, besides to delineate the cytoarchitecture and the localization in the brainstem of the human raphé nuclei, aims to evaluate the correlation between neuropathological raphé defects ...

More information: Keiko Iwata et al, Genome‐wide DNA methylation profiles in the raphe nuclei of patients with autism spectrum disorder, Psychiatry and Clinical Neurosciences (2025). DOI: 10. ...

In order to settle this debate, the Caltech team focused on a region called the raphe nuclei, which has the brain's main population of serotonin-producing (or serotonergic) neurons.

The bacteria may speed up learning because the Raphe nuclei stimulate a brain region called the hippocampus, which handles spatial memory, she says.

Reference: Iwata K, Nakabayashi K, Ishiwata K, et al. Genome‐wide DNA methylation profiles in the raphe nuclei of patients with autism spectrum disorder. Psychiatry Clin Neurosci. 2025:pcn.13830. doi: ...

As if low energy weren't depressing enough, the lack of light may also cause neurons called raphe nuclei to cut back production of serotonin, the feel-good neurotransmitter.

More information: Keiko Iwata et al, Genome‐wide DNA methylation profiles in the raphe nuclei of patients with autism spectrum disorder, Psychiatry and Clinical Neurosciences (2025). DOI: 10. ...