Researchers report the striatum and amygdala are less able to track changes in threat levels in those with severe PTSD. The findings may serve as a biomarker to evaluate who may be at greater risk of PTSD symptoms.
Researchers have identified a new biomarker for psychosis in the striatal dopamine neurons. Those at risk for psychosis showed increased activation in the striatum for positive feedback and decreased activation when faced with negative feedback.
A new brain imaging study reveals how the midbrain and striatum, two key areas of the dopamine system, become more active when a person updates their beliefs about the world around them.
A new study reveals people with schizophrenia have a disrupted stress response. Researchers report those with schizophrenia have an increase in dopamine release in the striatum, but not in the prefrontal cortex, in response to stress.
Researchers believe the newly understood mechanism could yield insights into more precise future treatments for nerve pain and depression.
Researchers report chronic stress can influence how we make decisions. In a new study, mice who were affected by chronic stress were more likely to make more risky decisions with higher payoff options than those who were less stressed.
Vanderbilt researchers have mapped a signaling system in the brain that appears to be linked to autism.