Karina Petrova

Articles by Karina Petrova

What neuroscientists thought was a biological signature for IQ might actually be socioeconomic privilege - PsyPost

Health September 20, 2026

A child’s neighborhood and socioeconomic background appear to shape the function and structure of their developing brain more powerfully than any other behavioral or environmental factor. Brain acti...

High intelligence may exacerbate impulsivity in children with ADHD - PsyPost

Health September 19, 2026

Having a high intelligence quotient is generally thought to protect children from the most severe symptoms of attention-deficit/hyperactivity disorder. A new large study reveals that while higher int�...

Harsh parenting predicts teenage depression and aggression through different types of repetitive thinking - PsyPost

Health September 5, 2026

Harsh disciplinary tactics like yelling and physical punishment predict a higher likelihood of depression and aggressive behavior in teenagers over time. A recent study published in the Journal of Af�...

Brain stimulation helps socially anxious individuals control avoidance behaviors - PsyPost

Health September 1, 2026

Researchers have found that applying a specific pattern of mild electrical stimulation to the brain can help individuals with high social anxiety better control their automatic avoidance behaviors. B�...

Adolescents report low regret and high satisfaction following gender-affirming chest surgery - PsyPost

Health August 31, 2026

Adolescents who undergo gender-affirming chest surgery report low levels of regret and high levels of satisfaction, experiencing outcomes similar to those of young adults. These findings suggest that�...

How the stories we tell about ourselves reveal hidden personality disorders - PsyPost

Health August 30, 2026

How people construct the stories of their lives offers insight into the severity of their personality disorders. Researchers found that narrating life events with a focus on negative self-change stro�...

Researchers quantify the rate of "mercy sex" among women with low sexual desire - PsyPost

Health August 27, 2026

Women experiencing a chronic lack of sexual desire still routinely engage in sexual activity with their partners, a behavior researchers have quantified as happening about two and a half times per mo�...

Brain scans reveal lasting tissue and chemical changes in both long COVID and recovered patients - PsyPost

Health August 18, 2026

Even after people recover from COVID-19, their brains may retain lasting physical and chemical changes. A recent scanning study found altered brain tissue patterns and neurochemical levels in both lo�...

Breathing exercises blunt the body’s physical reaction to acute stress - PsyPost

Health August 15, 2026

Short breathing exercises can prevent spikes in heart rate and anxiety when people face high-pressure situations. In a study published in Comprehensive Psychoneuroendocrinology, researchers found tha�...

Brain imaging study links childhood trauma to chronic procrastination in adulthood - psypost.org

Health August 13, 2026

Childhood trauma can leave lasting marks on human development, and a new study links these early adverse experiences to higher rates of procrastination in young adults. By scanning the brains of over�...