Discover the Science of Health
Two recently published studies have found that changes in heart function are seen during major depression [1] and also seen in some people who have recovered from depression [2]. This link between mental health and physical health emphasises how the body and mind are linked. Furthermore, it also suggests that some people with depression may be at increased risk of cardiac disease. The research also sheds further light on the biological pathways of depression.
The BrainGate Company is a privately-held firm focused on the creation of technology that will allow severely disabled individuals, including those with traumatic spinal cord injury and loss of limbs, to communicate and control common everyday functions by thought alone.
The BrainGate neural interface system consists of a sensor to monitor brain signals together with computer software and hardware, which turns brain signals into digital commands for external devices. This is a type of brain-computer interface intended to put robotics and other assistive technology under the brain’s control. The size of a baby aspirin, the sensor contains 100 hair-thin electrodes that can record the activity of small groups of brain cells. It is implanted into the motor cortex, a part of the brain that directs movement.
A new study published in the medical journal Pediatrics reports on the prevalence of youth participation in a dangerous strangulation game, commonly referred to as the “Choking Game” [1]. The game involves obstructing blood flow to the brain by tightening a scarf, rope or belt around the neck. When the belt is removed and blood returns to the brain, the participant experiences a euphoric high. The game, researchers report, is played purely for the purpose of experiencing a high; it is non-sexual in nature and is not the same as autoerotic asphyxiation.
According to an article in the Morbidity and Mortality Weekly Report, a publication of the U.S. Centers for Disease Control and Prevention (CDC), the prevalence of autism spectrum disorder (ASD) is higher than ever [1]. The CDC periodically surveys the prevalence of ASD, looking during each surveillance period at the percentage of 8-year-old children who have current ASD diagnoses. In 2000, a survey of children born in 1992 revealed that one in 150 had ASD. These numbers have been steadily climbing, such that the most recent survey — completed in 2008 and surveying children born in 2000 — indicates that one in 88 children has ASD. The numbers are even more disturbing for male children, who have an ASD prevalence of one in 54.
Neuroscientists — scientists who study the brain — have long attempted to understand the nature of memory. Engrams, or complete memories that are encoded in the brain, now appear to be stored physically as opposed to conceptually, according to research published in the journal Nature [1].
