Researchers have uncovered the neural mechanism underlying rumination. The study reports when rumination occurs, coupling between the core and medial temporal lobe subsystems of the default mode network becomes elevated, while coupling between the core and dorsomedial prefrontal cortex decreases.
In men with a history of childhood trauma, oxytocin reduced the activity within the amygdala and cravings for cocaine. Women who were addicted to cocaine and had experienced childhood trauma showed an increase in amygdala activity following exposure to oxytocin.
Researchers report the medial prefrontal cortex calibrates current visual information with previously obtained information to help us perceive the world with more stability, helping to retain visual consistency as we blink.
Researchers report ADHD and conduct disorder exhibit similar, overlapping changes in the brain.
When viewing OCD related images, those with the disorder had increased distress and higher levels of activity in emotion related brain regions than their siblings who did not suffer from OCD, researchers report.
According to researchers, when people are aware they are being observed, brain areas associated with social awareness and reward activate a part of the brain that affects motor control, helping them to perform better at skilled tasks.