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Lighting color affects sleep, wakefulness

A research team has shown how different colors of light could affect our ability to sleep. At the same time they have established that the light-sensitive pigment melanopsin is necessary for the substantial wavelength-dependent effects of light on slee…

Long-term marijuana use alters brain’s reward system

Researchers suggest long-term use of marijuana disrupts circuits in the brain associated with reward, which may lead to problematic use of the drug.

Stress exposure during pregnancy observed in mothers of children with autism

Stress during pregnancy has been linked to several conditions, including some instances of autism spectrum disorder. Now, researchers have observed a variant of a stress-sensitive gene and exposure to stress during pregnancy among two groups of mothers…

Study charts development of emotional control in teens

In the midst of all the apparent tumult, intense emotion, and occasional reckless behavior characterizing the teenage years, the brain is, in fact, evolving and developing the neural circuits needed to keep emotions in check. Research describes how the…

Long-term marijuana use changes brain’s reward circuit

Researchers have demonstrated that long-term marijuana users had more activity in the brain’s reward processes when presented with cannabis cues than with natural reward cues.

Two in five formerly depressed adults are happy, flourishing

Approximately two in five adults (39 percent) who have experienced major depression are able to achieve complete mental health. Researchers consider complete mental health as occurring when people achieve almost daily happiness or life satisfaction, po…

Moving houses in childhood increases suicide, death risk

A new study shows a link between moving houses in childhood and adverse health and well-being outcomes, with adolescents at particular risk.

Clinical trial opens new avenues for pharmacological therapy in Down’s syndrome

The results of the phase 2 study suggest that participants who had received the treatment had better scores in the visual memory recognition and inhibition tasks, and improvement in adaptive behavior than those in the control group. Though not a cure, …

Swapping sick for healthy brain cells slows Huntington’s disease

Researchers have successfully reduced the symptoms and slowed the progression of Huntington’s disease in mice using healthy human brain cells. The findings could ultimately point to a new method to treat the disease.

Blood test to personalize depression treatment for the first time

Scientists at King’s College London have developed a blood test that accurately and reliably predicts whether depressed patients will respond to common antidepressants, which could herald a new era…