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Brain hand ‘map’ is maintained in amputees with and without phantom limb sensations

Researchers have found that the brain stores detailed information of a missing hand decades after amputation, regardless of whether amputees still experience phantom hand sensations.

Women’s brains appear three years younger than men’s

Women’s brains appear to be three years younger than men’s of the same age, according to a new study on brain metabolism. The findings could explain why women maintain their cognitive skills longer than men.

Laughter may be best medicine — for brain surgery

Neuroscientists have discovered a focal pathway in the brain that when electrically stimulated causes immediate laughter, followed by a sense of calm and happiness, even during awake brain surgery. The effects of stimulation were observed in an epileps…

What is acute stress disorder?

Acute stress disorder (ASD) is a short-term condition that can develop after a person experiences a traumatic event. Its symptoms are similar to those of post-traumatic stress disorder (PTSD) and can include mood changes, negative thoughts, flashbacks …

Boosting glutamate reduces anxiety in monkeys

Researchers studying male and female marmosets have homed in on the primate brain circuitry responsible for individual differences in overall anxiety. Their findings show that increasing levels of the neurotransmitter glutamate in the hippocampus norma…

A gut feeling for mental health

The first population-level study on the link between gut bacteria and mental health identifies specific gut bacteria linked to depression and provides evidence that a wide range of gut bacteria can produce neuroactive compounds.

Biggest ever map of human Alzheimer’s brain

A study of the differences between healthy brains and those with Alzheimer’s disease has produced largest dataset of its type ever. And the data is now freely available online for any scientist to use.

Is there a cure for bipolar disorder?

Bipolar disorder is a long-term mental health condition. Although there is currently no cure, there are many treatments available that can reduce symptoms. Learn more here.

When neurons get the blues

A new study is the first to directly examine cells from patients whose depression doesn’t respond to selective serotonin reuptake inhibitors (SSRIs).

Fight or flight: Serotonin neurons prompt brain to make the right call

Known for its role in relieving depression, the neurochemical serotonin may also help the brain execute instantaneous, appropriate behaviors in emergency situations, according to a new study.