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Hormonal contraceptives in teens may alter risk assessment, rat study suggests

Hormonal contraceptives taken by adolescents may influence development of the brain in a way that alters the recognition of risks, a new study in rats suggests.

How climate change could be affecting your brain

A new element of the catastrophic impacts of climate change is emerging — how global warming is impacting the human brain.

Early-life stress changes more genes in brain than a head injury

A surprising thing happened when researchers began exploring whether early-life stress compounds the effects of a childhood head injury on health and behavior later in life: In an animal study, stress changed the activation level of many more genes in …

Do pets make you happier? Study shows they didn’t during the pandemic

There is a general understanding that pets have a positive impact on one’s well-being. A new study found that although pet owners reported pets improving their lives, there was not a reliable association between pet ownership and well-being during the …

Physical fitness since childhood predicts cerebellar volume in adolescence

Physical fitness since childhood is associated with cerebellar grey matter volume in adolescents. Those who were stronger, faster and more agile, in other words, had better neuromuscular fitness since childhood, had larger Crus I grey matter volume in …

Brain imaging identifies biomarkers of mental illness

Research and treatment of psychiatric disorders are stymied by a lack of biomarkers — objective biological or physiological markers that can help diagnose, track, predict, and treat diseases. In a new study, researchers use a very large dataset to ide…

Human brain takes stock of blame

Researchers have found that the human brain can distinguish between an outcome caused by human error and one in which the person’s decision-making is blameless. The brain takes just one second to separate the outcomes, and in cases involving human erro…

A thyroxine derivative enhances brain drug delivery

A new study shows that the delivery of drugs into the brain, and especially into glial cells, can be enhanced with prodrugs that temporarily incorporate thyroxine or a thyroxine-like molecule.

Researchers identify brain network that is uniquely activated through injection vs. oral drug use

Results from a new clinical trial suggest that a group of brain regions known as the ‘salience network’ is activated after a drug is taken intravenously, but not when that same drug is taken orally. When drugs enter the brain quickly, such as through i…

Validating the role of inhibitory interneurons in memory

To expand the understanding of memory, a research team has developed a technology called LCD-eGRASP (local circuit dual-eGRASP) that can label synapses of neural circuits within a specific brain region. The team applied this new technology to identify …