Neuroscience

Imagery reveals autism-related brain differences

People with autism spectrum disorder have lower levels of a protein that regulates the amount of serotonin in the brain, a paper from Karolinska Institutet in Sweden published in the journal Molecular Psychiatry reports. ...

Neuroscience

Happiness might protect you from gastrointestinal distress

Serotonin, a chemical known for its role in producing feelings of well-being and happiness in the brain, can reduce the ability of some intestinal pathogens to cause deadly infections, new research by UT Southwestern scientists ...

Psychology & Psychiatry

New study shows how ketamine combats depression

In low doses, the anaesthetic drug ketamine has been shown to have a rapid effect on difficult-to-treat depression. Researchers at Karolinska Institutet report that they have identified a key target for the drug: specific ...

Medications

Countering the negative effects of a common antidepressant

Selective serotonin reuptake inhibitors, or SSRI's, are popular drugs that treat depression by increasing the amount of a neurotransmitter called serotonin in the brain. But when a common SSRI known as sertraline is taken ...

Neuroscience

Antidepressant harms baby neurons in lab-grown 'mini-brains'

Researchers at Johns Hopkins Bloomberg School of Public Health have demonstrated the use of stem-cell-derived "mini-brains" to detect harmful side effects of a common drug on the developing brain. Mini-brains are miniature ...

Medical research

Scientists aim to learn how serotonin modulates behavior

In popular experience the story of how serotonin modulates the brain might seem simple: pop an antidepressant, serotonin levels go up, mood improves. But neuroscientists acknowledge how little they know about how the neurotransmitter ...

Psychology & Psychiatry

Imbalance between serotonin and dopamine in social anxiety disorder

The balance between the neurotransmitters serotonin and dopamine may affect whether a person develops social anxiety disorder. Previous research has mainly focused on either the serotonin or the dopamine system individually. ...

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