Psychology & Psychiatry

Immune system cells in the gut linked to stress-induced depression

In experiments with mice and humans, a team led by Johns Hopkins Medicine researchers says it has identified a particular intestinal immune cell that impacts the gut microbiome, which in turn may affect brain functions linked ...

Genetics

Researchers create mutant mice to study bipolar disorder

Bipolar disorder (BD) is a debilitating condition characterized by alternating states of depression (known as depressive episodes) and abnormal excitement or irritability (known as manic episodes). Large-scale genome-wide ...

Psychology & Psychiatry

How changes in length of day change the brain and subsequent behavior

Seasonal changes in light—longer days in summer, shorter in winter—have long been associated with human behaviors, affecting everything from sleep and eating patterns to brain and hormonal activity. Seasonal affective ...

Psychology & Psychiatry

Cells that control hunger affect brain structure and function

The prefrontal cortex region of the human brain is responsible for a range of complex functions from decision-making to certain types of memory. When something goes wrong in this part of the brain, it can be very detrimental ...

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