Pupillary response in those with PTSD differs from people who have not experienced traumatic events. The pupils of those with PTSD failed to show sharp constriction caused by light changes, and more enlargement when exposed to emotional stimuli that other participants. Patients with PTSD not only showed an exaggerated response to threatening stimuli but also to stimuli that depicted positive images.
Two months after injecting alpha-synuclein into the intestines of rats, researchers discovered the proteins had traveled to the brain via peripheral nerves. Four months later, the pathology was greater. Additionally, the protein had traveled to the heart. The study supports the hypothesis that Parkinson's disease may begin in the intestinal system before migrating to the brain.
The autonomic nervous system and cortical systems function similarly in low-risk newborns whether they experienced labor and natural birth or were born via elective cesarean section. However, those who were delivered via C-Section following long periods of labor had increased accelerations in heart rate and lower gamma frequency EEG a day after birth than the other two groups.
Transcutaneous vagus nerve stimulation helps improve sleep patterns and mental health in aging people. The therapy works by increasing parasympathetic activity and decreasing sympathetic activity.
Different social context causes different levels of physiological arousal. However, in every condition, the autonomic nervous system went into synch between strangers, whether in low or high states of arousal.
A new study links higher resting blood pressure in younger men with later onset of OCD, schizophrenia and substance abuse problems.
A new study reports the way you deal with stress is more detrimental to health than the frequency stress is experienced.
According to a new study, U.S Marines with reduced heart rate variability prior to deployment displayed increased vulnerability to PTSD upon return.
Researchers report of elevated alpha-synuclein levels detected on the skin of patients with Parkinson's disease. The findings could offer a new biomarker for the recognition of Parkinson's before the disease reaches advanced stage.