Tag Archives: Dopamine

Dopamine Links Social Isolation to Brain Myelin Damage

Dopamine Links Social Isolation to Brain Myelin Damage

Summary: A new five-year study explores how dopamine may drive changes in brain myelin during social isolation. Researchers will track how dopamine interacts with oligodendrocytes, the cells responsible for producing myelin and supporting neuron function. The project aims to uncover whether dopamine regulates myelin plasticity, potentially linking isolation, addiction, schizophrenia, and other conditions. The findings could open doors to treatments …

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Dopamine Imbalance in the Brain May Drive Trichotillomania

Dopamine Imbalance in the Brain May Drive Trichotillomania

Summary: A new study using SAPAP3 knockout mice sheds light on the brain mechanisms that may drive trichotillomania, or hair-pulling disorder. These mice displayed compulsive grooming, heightened aggression, and stress-sensitive behaviors, mirroring human TTM traits—particularly in females. Neural recordings revealed reduced nucleus accumbens activity alongside dopamine receptor imbalances and altered synaptic protein interactions. The findings suggest that targeting reward circuit …

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The Connection Between Smiling and Dopamine

The Connection Between Smiling and Dopamine

In other words, the brain adapts our mood to the expression on our face. Smiling can even increase creativity and cognitive capacity, because “there is an increase in endorphins, neuropeptides, dopamine, and serotonin,” says Ramón. “These hormones act together to decrease stress, lower heart rate, increase productivity and reduce anxiety.” Smiling for longevity According to longevity experts, social relationships are …

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Dopamine Doesn’t Work in Our Brains Quite The Way We Thought : ScienceAlert

Dopamine Doesn’t Work in Our Brains Quite The Way We Thought : ScienceAlert

Dopamine is one of the most extensively studied chemical messengers in the human brain, and yet scientists are still figuring out how it works to accomplish so much. For years, the classic view has been that, when released, dopamine slowly diffuses through the brain like a chemical megaphone, broadcasting information far and wide to numerous target cells. Recently, however, that …

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