Neuroscience

Mind over matter: Amygdala circuit counteracts pain-driven emotion

Two pathways in the brain converging at the amygdala regulate the anxiety and depression that often accompanies chronic pain, suggests research in male rats published in JNeurosci. One of these pathways may represent a top-down ...

Alzheimer's disease & dementia

Female sex hormones and mechanics of memory

Dr. Karyn Frick was puzzled. Her two-year study, begun with funding from Women's Health Research at Yale in 2005, found that long-term treatment with the sex hormones estrogen and progesterone did not improve memory as anticipated.

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