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…

How Large Social Circles Foster Trust

Summary: A new study challenges the belief that larger groups reduce cooperation, showing instead that flexible social connections enhance teamwork. Researchers found that in a prisoner’s dilemma game, participants in…

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…

Oral Microbiome May Influence Cognitive Decline and Brain Health

Summary: The microbial ecosystems in our mouths may impact cognitive function as we age, with pathogenic bacteria linked to cognitive decline. Researchers found that beneficial bacteria, such as Neisseria, are…

Study Links Schizophrenia to Visual Contrast Sensitivity Deficits

Summary: People with schizophrenia experience impaired contrast perception, affecting their ability to differentiate light intensity and recognize shapes and textures. This deficit may stem from disruptions in glutamate neurotransmission, a…

Cannabis Use Reduces Brain Activity in Key Memory Regions

Summary: A study of over 1,000 young adults reveals that both recent and heavy lifetime cannabis use reduce brain activity in regions critical for working memory, including the prefrontal cortex…

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…

Why does it hurt when you get a scrape? A neuroscientist explains the science of pain

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. “How come you feel pain…

AI Mimics Toddler-Like Learning to Unlock Human Cognition

Summary: A new AI model, based on the PV-RNN framework, learns to generalize language and actions in a manner similar to toddlers by integrating vision, proprioception, and language instructions. Unlike…