When people see an image of a person they recognize—the famous tennis player Roger Federer or actress Halle Berry, for instance—particular cells light up in the brain. Now, researchers reporting in Current Biology on September 21 have found that those cells light up even when a person sees a familiar face or object but fails to notice it. The only difference in that case is that the neural activity is weaker and delayed in comparison to what happens when an observer consciously registers and can recall having seen a particular image.
An epileptic seizure may be highly local, but it also influences brain activity at a distance of over ten centimeters from the core. This, in turn, affects the active area, scientists of the University of Twente and the University of Chicago show in the Proceedings of the National Academy of Sciences (PNAS). The area in which an epileptic seizure starts in the brain, may be small but it reaches other parts of the brain at distances of over 10 centimeters. That distant activity, in turn, influences the epileptic core, according to mathematicians and neurologists of the University of Twente and the University of Chicago.
Early photosensitivity may be a hallmark of ceroid lipofuscinosis type 2 (CLN2) disease, according to the results of a small study. The study “Photosensitivity is an early marker of neuronal ceroid lipofuscinosis type 2 disease” was published in the journal Epilepsia. The neuronal ceroid lipofuscinoses (NCLs), or Batten disease, are a heterogeneous group of lysosomal storage disorders that includes, among others, the neuronal CLN2 disease. Patients with this condition, which affects primarily the nervous system, typically develop initial symptoms – recurrent seizures (epilepsy) and difficulty coordinating movements (ataxia) – between ages 2 and 4 years.
Ten percent of people are expected to experience a seizure at some point during their lifetime, but would you know what to do if someone was having a seizure right next to you? Would you recognize it for what it was? Here, we give you an overview of different types of seizures and offer some helpful first aid tips.
Fever is the most common trigger for seizures in children between 5 months and 6 years of age. But the underlying cause is not always clear. Now in a study published in the journal Epilepsy Research, Jing-Qiong (Katty) Kang, M.D., Ph.D., and colleagues show in a genetically altered mouse model that elevated body temperature alone can increase vulnerability to febrile seizures even in the absence of infection or inflammation.
Some drugs used to treat epilepsy harm children who are exposed to them in the womb or through breast milk, a new analysis of the literature suggests1. The drug valproate is particularly risky, boosting the likelihood of autism and other developmental problems up to 17-fold. The study is the first to compare the relative risks of taking various epilepsy drugs during pregnancy. Some of these medications are also used to treat bipolar disorder and migraines.
People with certain types of epilepsy may have the option to use a therapy that doesn’t include drugs. The RNS System from NeuroPace, a company out of Mountain View, California, monitors the brain for signs of an oncoming seizure and stimulates it to disrupt the process. It has been approved in the U.S. for about four years now, and we wanted to find more about how it works and how it’s being used. We had a chance to speak with Dr. Martha Morrell, Chief Medical Officer of NeuroPace, who was kind enough to answer our questions. Medgadget: The NeuroPace RNS system has shown to be effective at reducing seizures in many patients with epilepsy. Can you give us a brief overview of how the system functions?
you know what a grand mal seizure is? I found out when I was eight years old. I also found out how it felt after having one…a mouth being full of swollen tongue, the taste of blood, and the feeling of being underwater with a throbbing headache. As with most epileptics, doctors have no idea why I have it or what caused it. Mine is not genetic; it may have resulted from one of the many times I thwacked my head as a kid. I liked to hang upside-down on the monkey bars a lot. No surprise that my stampeding hippo brand of grace emerged early, and that I frequently fell from exactly that upside-down position.
Did you know that seizures are more likely to develop in older adults? Learn to recognize the signs of seizures and how you can help. Epilepsy is a broad term used for a brain disorder that causes seizures. In the United States, 2.4 million adults aged 18 years or older have active epilepsy.1,2 About 1% of adults 65 years of age and older have active epilepsy, which is about 447,000 people.1,2 That’s about the size of Corpus Christi, TX. With the aging of the population, we can expect to see greater numbers of people with epilepsy. Epilepsy is more likely to develop in older adults rather than younger adults because as people age, the risk of seizures and epilepsy rises.3,4 Some older adults may have lived with epilepsy throughout their lives, but others might develop epilepsy later in lif...
For 10 years the CDC Managing Epilepsy Well Network has developed innovative programs using e-tools to reach people with epilepsy. Learn how these programs can help your patients with epilepsy better manage their condition. The Importance of Epilepsy Self-Management Epilepsy is a broad term used for a brain disorder that causes seizures. There are many different types of epilepsy and many different kinds of seizures. Epilepsy can get in the way of life, mostly when seizures keep happening. Although there are many drugs to help prevent seizures, they don’t always work. In fact, about one-third of people with epilepsy who are receiving care still have seizures.1 Uncontrolled seizures can increase the risk of injury, anxiety, depression, brain damage, and in rare cases, death. They can also i...
Scientists are increasingly appreciating estrogen’s role in brain health. Now for the first time, production of estrogen in the brain has been directly linked to the presence of docosahexaenoic acid (DHA). DHA is found in abundance in fish oils and is also synthesized from alpha-linolenic acid, an omega-3 fatty acid found in some vegetable-based oils.
Epilepsy, a brain disorder leading to recurring seizures, has garnered increased public health focus because persons with epilepsy experience pronounced and persistent health and socioeconomic disparities despite treatment advances, public awareness programs, and expanded rights for persons with disabilities (1,2). For almost all states, epilepsy prevalence estimates do not exist. CDC used national data sources including the 2015 National Health Interview Survey (NHIS) for adults (aged ≥18 years), the 2011–2012 National Survey of Children’s Health (NSCH), and the 2015 Current Population Survey data, describing 2014 income levels, to estimate prevalent cases of active epilepsy, overall and by state, to provide information for state public health planning. In 2015, 1.2% of the U.S. populatio...