Serotonin produced by the raphe is critical for sleep in both mice and zebrafish. The firing of neurons in the raphe and the release of serotonin may help the brain build up better sleep pressure. The results may explain why some sleep-related side effects of antidepressants increase serotonin in the brain.
Using germ-free mouse models, researchers transplanted fecal bacteria from children on the autism spectrum and neurotypical children. Mice who received the transplants from the ASD cohort began to exhibit autism-like behaviors, whereas the mice who received transplants from typically developing children did not. Additionally, the mice showed altered gene expression in their brains and differences in types of metabolites present. In particular, the ASD mice had lower levels of 5AV and taurine. Findings suggest gut microbiota regulates autism-like behaviors via the production of neuroactive metabolites, providing further evidence for the gut-brain axis connection to the pathology of autism.
Neurons in the anterior intraparietal cortex learn to modulate their activity to compensate for errors in brain-machine interface tasks. Findings suggest the extent to which a person can learn a new skill is constrained by preexisting neural networks.
Researchers have developed a new test that examines theory of mind in those on the autism spectrum. The work may shed light on how those with ASD have difficulty in understanding the point of view of others, and social behavioral deficits.
Researchers identified specific neurons in the medial prefrontal cortex, called self monitoring error neurons, that fire immediately after people make a mistake.
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Researchers have developed two new illusions that shed light on how our senses can influence each other, specifically, how the presence of audio can influence visual illusions.
According to researchers, people are able to judge whether a politician has been convicted of corruption just by looking at their faces.
Researchers have developed a new, non surgical method to manipulate brain circuitry. The technique uses sound waves in combination with small bubble injections into the blood stream that temporarily opens the blood-brain barrier.