In an advance in treating spinal cord injuries, researchers have pinpointed nerve cells that are key to allowing people with paralysis to walk again.
When lab-grown clumps of human neurons are transplanted into newborn rats, they grow with the animals. The research raises some tricky ethical questions.
called APOE4 raises a person’s risk of Alzheimer’s disease. However, the APOE4 variant has positive cognitive impacts: It may not only boost short-term memory, but also protect against subtle memory loss early in the course of Alzheimer’s disease.
Earlier generations of neuroprostheses have relied on communications from the brain to the limb or hand muscles to activate letters on a keyboard. Now, researchers have decoded the origin of brain signals controlling speech and created the new neuroprosthesis that facilitates the production of whole words, yielding a faster word-per-minute rate.
Our memory can retain far more than either experts or we expect. Studies suggest that although we don’t recall a large fraction of what we experience, what we do remember is accurate, at least for a few days, with a number of factors impacting memory performance.
A new study published in the journal Alzheimer's and Dementia shows that head injuries, even mild ones, are associated with a long-term increase in risk of dementia. Scientists are racing to pinpoint the mechanisms that cause symptoms of this complex disorder.