Study reveals specific brain wave patterns that underlie the ability to remove irrelevant learned associations to make way for new, updated information. The research shows a particular behavior can be dependent on the synchronization of high-frequency brain waves in different parts of the brain.
The stress of the COVID-19 pandemic may lead to an increased risk of developing psychosis for some people. Additionally, contracting the coronavirus infection may lead to some people developing symptoms of psychosis.
Over 30 prenatal and postnatal environmental risk factors have been identified for the development of psychosis in offspring. The factors have been split into four categories, including parental and familial, pregnancy, labor and delivery, and fetal growth and development. Significant protective factors are lower maternal age, first-time mothers, and babies with higher birth weights.
Analyzing the results of 15 different studies involving over 300 subjects, researchers discovered a single dose of THC could induce psychiatric symptoms in people with no history of psychosis.
Researchers investigate the role the dopamine 2 receptor plays in psychosis.
Computer analysis of patients reveals five clearly defined subgroups of psychosis and bipolar disorder. Those in group two were more likely to exhibit suicidal tendencies, while those in group five, for example, were characterized by schizophrenia diagnosis and lower verbal intelligence scores. Defining the characteristics of the subtypes could lead to improved personalized treatments for psychosis related mental illnesses.
Typical interventions for schizophrenia do not improve long-term outcomes, even when administered early, a new study reports.
During memory tasks, people with psychosis have different patterns of activity in the prefrontal and mediotemporal brain areas compared to those without the disorder. When exposed to cannabidiol (CBD), the activity of the brain areas became more like those seen in the controls for people with psychosis. Patients reported a decrease in symptoms of psychosis following one dose of CBD. Researchers stress that no definitive conclusions could be made about the effectiveness of CBD use over a sustained period.
While the risks of developing depression, anxiety disorders, and psychosis are significantly higher for urban dwellers, researchers report there are some positive impacts on mental health for those who live in big cities.
Long-term exposure to air pollution has been linked to a higher risk of depression. Additionally, suicide risk is measurably higher on days when PM10 levels have been high for over three days following less polluted periods.