While more commonly associated with promoting aggressive behaviors, testosterone can also promote social affection and prosocial behaviors in males, a new study on gerbils finds.
Brain scans of grandmothers taken when viewing photos of their grandchildren revealed greater activation in brain areas associated with emotional empathy, suggesting grandmothers are geared towards feeling what their grandchild is feeling when interacting with them. By contrast, when viewing images of their adult children, brain areas associated with cognitive empathy become activated.
Higher polygenetic risk scores for schizophrenia, depression, neuroticism, and alcohol use disorder are indicators for higher risk of nicotine dependence.
The ventral striatum plays a key role in decision making, weighing the cost versus the benefit of making a physical effort.
A key finding in the origins of lupus has been discovered. In those with systemic lupus erythematosus, B cells are abnormally activated. This results in the production of antibodies which react against the patient's own tissue, causing a range of symptoms including rashes, joint pain, and fatigue.
A new neuroimaging study reveals how dogs process words they have been taught to associate with objects. Findings suggest dogs have a rudimentary neural representation of meaning for words they have been taught.