Prior research has demonstrated greater addiction vulnerability in women; for example, women advance from casual substance use to addiction at a faster rate, experience more severe withdrawal symptoms, exhibit higher rates of relapse, and have less treatment success than men. A new study shows that biobehavioral interactions in alcohol use disorders (AUDs) among women are cyclical in nature: women’s greater risk of personal histories of trauma coupled with a greater vulnerability to alcohol-related brain deficits can lead to more severe AUD effects.
Brain Activity Helps Explain Response to Alcohol and How People Recognize Emotions Before Becoming Intoxicated
People who need to drink relatively high amounts of alcohol before feeling its effects, a genetically influenced risk factor for future heavy drinking and alcohol problems, may have differences in brain connectivity that impair their ability to interpret facial expressions and recognize their own intoxication, a new study suggests. The paper, in Alcoholism: Clinical & Experimental Research, is believed to be the first to demonstrate differences in brain connectivity between people with low and high responses to alcohol. Varying levels of responses to alcohol — for example, how many drinks a person consumes before feeling intoxicated — are known to be related to neurobiological processing. Low responders, who drink more alcohol before feeling affected by it, are at greater risk of alcohol use disorder (AUD) than high responders, who feel the effects of fewer drinks. Scientists using functional magnetic resonance imaging (fMRI) are exploring the possibility that low responders are less a
Newborn brains lack maturity to process emotions as adults do
Humans aren’t born with mature brain circuitry that attaches emotions to the things they see or hear in their environment, a new study shows.
Brain Cell Types Identified That May Push Males to Fight and Have Sex
Two groups of nerve cells may serve as “on-off switches” for male mating and aggression, suggests a new study in rodents.
Enlarged amygdala involved in psychiatric challenges in young girls with autism
behavioral problems than similar age boys with ASD. These challenges are associated with a larger amygdala, a UC Davis Health study has found. The amygdala is a key part of the brain that helps regulate emotions and detects threats.