tDCS for Patients With Disorders of Consciousness

The study covered in this summary was published on medRxiv.org as a preprint and has not yet been peer reviewed. Key Takeaways Meta-analysis data from eight randomized controlled trials (RCT) showed that transcranial direct-current stimulation (tDCS) treatment for patients with disorders of consciousness (DoC) was more effective at improving behavior performance compared to controls. Patients … Read more

Air Pollution a Seizure Trigger for Patients With Epilepsy

Elevated concentrations of carbon monoxide (CO) due to air pollution increases the risk of epileptic seizures, a unique new study suggests. The link between daily outdoor CO exposure and seizure risk was particularly evident for subclinical seizures ― those in patients with abnormal electroencephalography (EEG) signals but no clinical symptoms. “Our findings suggest that people … Read more

Heart Rate Variability May Aid Objective Diagnosis of PTSD

Heart rate variability (HRV), as assessed during a deep breathing test, may lead to improved diagnosis of posttraumatic stress disorder (PTSD), according to a study published in Frontiers in Psychiatry. It is estimated that between 8% and 15% of clinically recognized pregnancies and up to 30% of all pregnancies result in miscarriage — a loss … Read more

New Insight Into How Psychedelics Work

What causes the dramatic alterations in subjective awareness experienced during a psychedelic “trip?” A new study maps anatomical changes in specific neurotransmitter responsible systems and brain regions that may be for these effects. Investigators gathered over 6800 accounts from individuals who had taken one of 27 different psychedelic compounds. Using a machine learning strategy, they … Read more

Post-COVID Cognitive, EEG Changes Persist Up to 10 Months

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. Patients who recover from COVID-19 show interrelated cognitive, EEG, and MRI abnormalities 2 months after hospital discharge — with some “disurbances” persisting as long as 10 months later, new research suggests. In a cohort of patients admitted to the emergency department … Read more