Summary: Researchers have identified brain mechanisms that help animals suppress instinctive fear responses when threats prove harmless over time. Using a visual threat model in mice, they found that specific…
Tag: Psychology
Blood Test May Predict Postpartum Depression Through Hormone Levels
Summary: Women who develop postpartum depression (PPD) may have distinct neuroactive steroid levels during the third trimester of pregnancy. A study found that those with PPD had lower levels of…
Empathy Peaks in Young Adults
Summary: A new study reveals that young adults show the strongest empathic responses to others in physical or social pain, compared to adolescents and older adults. Researchers measured brain activity…
Opioid Dysregulation in the Brain Tied to Eating Disorders
Summary: Elevated opioid neurotransmission in the brain may underlie appetite loss and emotional symptoms in anorexia nervosa. Compared to healthy controls, patients with anorexia had increased opioidergic tone, which regulates…
Dopamine Clock May Drive Bipolar Mood Swings
Summary: New research suggests that mood swings in bipolar disorder are regulated by two clocks: the body’s 24-hour circadian rhythm and a dopamine-based clock that influences alertness. When these clocks…
Targeting Reward Pathways to Treat Depression
Summary: New research highlights how the brain’s reward-learning system can guide personalized treatments for depression. By studying two brain signals, expected value and prediction error, researchers identified markers that predict…