Psychology & Psychiatry

Study sheds light on link between cannabis, anxiety and stress

A molecule produced by the brain that activates the same receptors as marijuana is protective against stress by reducing anxiety-causing connections between two brain regions, Vanderbilt University Medical Center researchers ...

Neuroscience

Respiration key to increase oxygen in the brain

Contrary to accepted knowledge, blood can bring more oxygen to mice brains when they exercise because the increased respiration packs more oxygen into the hemoglobin, according to an international team of researchers who ...

Neuroscience

How the brain decides to punish or not

Oksana Zinchenko, Research Fellow at the Institute of Cognitive Neuroscience, HSE University, has conducted a meta-analysis of 17 articles to find out which areas of the brain are involved in decision-making for rendering ...

Neuroscience

Why, sometimes, we don't see what we actually saw

Georgetown University neuroscientists say they have identified how people can have a "crash in visual processing"—a bottleneck of feedforward and feedback signals that can cause us not to be consciously aware of stimuli ...

Neuroscience

Brain marker for angry dreams

Researchers have identified a pattern of brain activity that predicts anger experienced during dreaming, according to a new study of healthy adults published in JNeurosci. The research could potentially inform efforts to ...

HIV & AIDS

Novel brain map tracks early brain atrophy from HIV infection

A new map of brain tissue in people with HIV shows atrophy in several areas including a primary neurocognitive control center where shrinkage and loss of function can be seen in scans before clinical symptoms appear.

Neuroscience

Brain processes concrete and abstract words differently

A new review explores the different areas of the brain that process the meaning of concrete and abstract concepts. The article is published ahead of print in the Journal of Neurophysiology (JNP).

Neuroscience

Smoking and alcohol: Double trouble for the brain?

Along with many other harmful health consequences, smoking tobacco causes chemical changes, oxidative stress and inflammation in the brain. Excessive alcohol use can have similar effects. Surprisingly, however, very few studies ...

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