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Seasonal affective disorder: Why brown-eyed women are at risk

Two studies shed new light on seasonal affective disorder, concluding that brown-eyed women may be particularly prone to the condition.

Brain circuit helps us learn by watching others

Researchers have identified a brain circuit required to learn by watching others. This circuit, which is distinct from the brain network used to learn from firsthand experiences, relies on input from a part of the brain responsible for interpreting soc…

Even brief maternal deprivation early in life alters adult brain function and cognition: Rat study

When a baby is taken from its mother for even a brief period early in life, this traumatic event significantly alters the future, adult function of the brain, according to a new animal model study. These changes in the brain are similar to disturbances…

The brain’s ‘rising stars’:  New options against Alzheimer’s?

A new study points to a novel potential approach against Alzheimer’s disease. In studies in mice, the researchers were able to show that blocking a particular receptor located on astrocytes normalized brain function and improved memory performance. Ast…

Decoding the brain’s learning machine

In studies with monkeys, researchers report that they have uncovered significant new details about how the cerebellum — the ‘learning machine’ of the mammalian brain — makes predictions and learns from its mistakes, helping us execute complex motor a…

Early HIV treatment key to avoiding brain atrophy

While the human immunodeficiency virus (HIV) has largely dropped from news headlines since the 1990s, at the end of 2016 there were 36.7 million people living with the infection, and of those only 53 per cent had access to treatment. A new study unders…

Brain stimulation reduces suicidal thinking in people with hard-to-treat depression

A specific kind of brain stimulation is effective in reducing suicidal thinking in a significant portion of people with hard-to-treat depression, according to a new study. Forty per cent of people in the study reported that they no longer experienced s…

Researchers find the ‘brain switch’ for courage

Scientists have found a ‘switch’ that controls the fight-or-flight response in the brains of mice. The findings are relevant to humans living with PTSD.

Childhood communication enhances brain development, protecting against harmful behaviors

Children with greater parent communication in early adolescence have less harmful alcohol use and emotional eating in young adulthood.

Is your love life being hampered by an immune response?

When we note signs of illness in others, we unconsciously tend to avoid them. But does this defense mechanism persist in potentially romantic situations?