Family members of people with borderline personality disorder share similarities in brain structure and personality traits as those diagnosed with the personality disorder. Findings may point toward a hereditary component to personality disorders.
Lower cholesterol levels may put people with schizophrenia at higher risk for violent behaviors, including self-harm and suicide. Researchers say lower cholesterol levels make brain cells less sensitive to serotonin, increasing symptoms of depression, impulsivity, and aggression.
Researchers investigate why boredom can be both good and bad for our mental health and behaviors.
Researchers conclude the mind of an extremist is marked by a mixture of conservative and dogmatic psychological signatures. Extremists tend to be cognitively cautious, slower at perceptual processing, and have weaker working memory. This is compounded by impulsive personality traits that seek sensation and risky experiences.
People who suffer from obesity have stronger connections between brain areas associated with the motivation to eat and the rewarding effect of food consumption. Additionally, researchers found noted differences in the thickness of the cerebral cortex of obese test subjects.
Animals slowly shift their likelihood of detecting stimulus changes over ten minutes. Researchers found the activity of neural populations from the V4 visual area and prefrontal cortex slowly drifted together with the behavioral fluctuations. The slow drift acts as an impulsivity signal.
Teens with a particular pattern of brain development have an increased frequency of drunkenness, a new study reports. Decreased gray matter density in the frontal and temporal brain regions was associated with an increased risk of teenage over-drinking.
Neuroimaging can be used to assess a person's risk of suicidal behavior. Those with mood disorders, a history of suicidal thoughts, and those with a history of suicide attempts have less connectivity in the cognitive control network. They also have reduced connectivity between the cognitive control network and the default mode network.
The largest delay discounting effects were found to be associated with bipolar disorder, borderline personality disorder, and schizophrenia. The image is in the public domain.
Too little sleep and too much screen time are linked to increased impulsive behaviors, especially in younger people. Reducing recreational screen time to two hours a day and sleeping for 9-11 hours per night can help curb impulse behaviors.