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Epilepsy Foundation-Science: The Human Brain Although the symptoms of a seizure may affect any part of the body, the electrical events that produce the symptoms occur in the brain. A seizure is a massive disruption of electrical communication between neurons in the brain, leading to the temporary release of excessive energy in a synchronized form. While distinct areas of the brain are associated with distinct functions, it is also true that the brain works through a network of connections and interrelated parts. www.epilepsyfoundation.org /about/science   (514 words)

Seizures/Seizure Disorders - neurologychannel Epilepsy is a recurrent seizure disorder caused by abnormal electrical discharges from brain cells, often in the cerebral cortex. It is not a distinct disease, it is a group of disorders for which recurrent seizures are the main symptom. The aura is a period or warning prior to a seizure. www.neurologychannel.com /seizures   (936 words)

Researchers model brain's electrical storm during a seizure Some seizures begin in a very specific area of the brain called the "seizure focus" before spreading out, and others, particularly ones linked to genetic causes, appear to start simultaneously in various parts of the brain. What is clear is that during a seizure, a strong pattern of electrical signals suddenly emerges from the random fluctuations that characterize normal brain activity. Examples of potential directed therapies include focal cooling, in which the part of the brain experiencing a seizure is literally chilled to dampen the seizure, and electrical stimulation of the affected area of the brain to counter the seizure as it's forming. www.eurekalert.org /pub_releases/2005-02/uoc--rmb022305.php   (983 words)

Seizures: Pet Health Topics from the College of Veterinary Medicine, Washington State University Epilepsy is a recurrent seizure disorder irrespective of cause. After the veterinarian is convinced that a seizure disorder is present, the most important question to be answered is whether the seizure focus is the result of primary brain disease (intracranial), the result of a disturbance outside the brain (extracranial), or is occurring idiopathically (without obvious cause). Primary brain cancers originate in the brain whereas secondary cancers develop when cells from cancers outside the brain are carried to the brain in the blood. www.vetmed.wsu.edu /ClientED/seizures.asp   (872 words)

[No title] The seizure is characterized by a change in alertness or awareness, behavioral or emotional symptoms, and temporary loss of memory. Although seizures are one of the most alarming symptoms of a brain tumor, there are others that may give additional indications of a tumor's presence. This study was undertaken to clarify whether seizures in the newborn cause damage to the healthy brain and, more specifically, to determine the extent to which seizures may contribute to the brain-damaging effects of hypoxia-ischemia (HI). www.lycos.com /info/seizures--brains.html   (494 words)

Epilepsy (Seizure Disorders)- Health Encyclopedia and Reference An individual is usually diagnosed as having epilepsy (seizure disorder) when he or she has had multiple spontaneous seizures, that is, ones that are not associated with an obvious trigger such as fever, electrolyte imbalance, or head trauma. The underlying cause may be structural, including a brain injury such as a contusion, infection such as encephalitis, lack of oxygen to one part of the brain as occurs in a stroke, or a tumor. Some complex partial seizures remain localized in the affected part of the brain, and the seizure may be so subtle that it may be confused with absence ("petit mal") seizures. www.healthcentral.com /encyclopedia/408/232.html   (1815 words)

Partial complex seizure Information on Healthline   (Site not responding. Last check: 2007-11-01) The seizure is characterized by a change in alertness or awareness, behavioral or emotional symptoms, and temporary loss of memory. An isolated seizure with an obvious avoidable trigger (such as fever or toxic reactions) is treated by removing or treating the precipitating factor. Seizures that occur singly or in a closely associated group are commonly caused by an acute condition such as brain injury. www.healthline.com /adamcontent/partial-complex-seizure   (1310 words)

Temporal lobe seizure   (Site not responding. Last check: 2007-11-01) This type of seizure involves a temporary change in movement, sensation, or autonomic function caused by abnormal electrical activity in the temporal lobe on either one or both sides of the brain. Seizures that recur with no precipitating factors are most commonly a chronic, lifelong condition termed epilepsy. Seizures that occur singly or in a discrete cluster are commonly caused by an acute condition, such as brain injury. www.shands.org /health/information/article/001399.htm   (1090 words)

MedlinePlus Medical Encyclopedia: Partial complex seizure   (Site not responding. Last check: 2007-11-01) An isolated seizure with an obvious avoidable trigger (such as fever or toxic reactions) is treated by removing or treating the precipitating factor. Seizures can occur as a single isolated incident, at closely repeated intervals (recurrent multiple seizures), or at various intervals (episodic, paroxysmal). Seizures that occur singly or in a closely associated group are commonly caused by an acute condition such as brain injury. www.nlm.nih.gov /medlineplus/ency/article/000699.htm   (1289 words)

Seizure -- eCureMe.com A brain disorder in which an abnormal spread of electrical activity (from one area of the brain to another) causes a sudden altered state of consciousness. Grand mal seizure (generalized seizure): usually with no warning, there is loss of consciousness, falling to the ground, eye-rolling, muscle contractions with jerking of the arms and legs; possibly cyanosis is seen (blue lips). In a seizure, an area of brain tissue is abnormal (either in its anatomy, or its chemical reactions) and becomes an "irritable focus" that can suddenly spread an electrical burst to areas of the brain outside the local region, or perhaps to wide areas of the brain. www.ethex.com /emyhealth/Pediatrics/Seizure.asp   (1067 words)

[No title] Epilepsy is not a disease; it is a symptom of a neurological disorder that affects the brain. The seizure may involve twitching of the face, hand/arm, and/or leg on the side of the body opposite to the side of the brain from which the seizure emanates. This type of seizure may be referred to as a Psychomotor or Temporal Lobe seizure because the abnormal electrical activity often occurs in the temporal lobe of the brain. www.biawa.org /pax/epilepsy/Seizures.doc   (2430 words)

Epilepsy Surgery Epilepsy surgery is a procedure that removes the seizure-producing region of the brain or limits the spread of the seizure activity. The physical exam is usually normal but may show some asymmetries of development compatible with early structural brain lesions such as a difference in the size of one hand or foot compared to the other, which may correlate with atrophy of one hemisphere in the brain. Blood flow to an area of the brain during a seizure increases while blood flow to an area of the brain when a person is not having a seizure can show a specific area of decreased blood flow. www.mayfieldclinic.com /PE-EpilepsySurg.htm   (2642 words)

WSAVA 2001 - The Diagnosis of Epilepsy: Seizure Phenomenology and Classification This classification system is based upon localisation of the seizure focus (the area in the brain from where seizures are generated) and the degree of alteration of consciousness expressed by the seizure symptomatology experienced and reported by the patient and/or her/his relatives. Videotaped seizure episodes should be used to document the nature of the seizures and to detect subtle signs of a partial seizure onset, which might otherwise be missed by the owner. CT-scanning/MR-scanning of the brain are highly beneficial in the diagnostic work-up of animals suspected of an intracranial lesion as the cause of epilepsy. www.vin.com /VINDBPub/SearchPB/Proceedings/PR05000/PR00161.htm   (1526 words)

Controlling Seizures Animatinon of a specific area of brain injury located directly opposite to the site of impact to the head that results from linear violent collisions of the brain with the skull. Their experiments in rats also involved testing the concept of a "brain pacemaker," which could be reduced to a small device that could detect potential seizure activity and stimulate the nerve to prevent seizures in humans. Their findings, reported in the Nov.1 issue of the Journal of Neuroscience, offer hope of greatly improved seizure control for the 10 percent to 50 percent of epileptic sufferers whose disorder is resistant to antiepileptic medication or surgery. www.neuroskills.com /pr-seizures.shtml   (865 words)

InteliHealth: The seizure episode typically lasts for less than a minute and is followed by period of lethargy (sluggishness) and confusion, possibly with muscle soreness and a headache. When seizures are related to an identifiable illness or condition � such as overuse of alcohol or a severe chemical imbalance in the blood � the seizures usually go away when the problem is corrected. Seizures that have an identifiable cause (such as a brain tumor, blood vessel malformation in the brain or a chemical imbalance in the blood) may stop when the medical or neurological condition is treated. www.intelihealth.com /IH/ihtIH/WSIHW000/9339/10654.html   (2084 words)

Seizure -- eCureMe.com A brain disorder in which an abnormal spread of electrical activity (from one area of the brain to another) causes a sudden altered state of consciousness. Grand mal seizure (generalized seizure): usually with no warning, there is loss of consciousness, falling to the ground, eye-rolling, muscle contractions with jerking of the arms and legs; possibly cyanosis is seen (blue lips). In a seizure, an area of brain tissue is abnormal (either in its anatomy, or its chemical reactions) and becomes an "irritable focus" that can suddenly spread an electrical burst to areas of the brain outside the local region, or perhaps to wide areas of the brain. www.ecureme.com /emyhealth/Pediatrics/Seizure.asp   (1088 words)

Brain Foundation - Epilepsy Epilepsy is a neurological disorder in which brief, recurrent changes in the electrical activity of the brain lead to seizures or ‘fits’, lasting from a few seconds to several minutes. In a partial seizure, only a part of the brain is involved, while in a primary, generalised seizure, the entire brain is involved. Depending on the area of the brain involved, limbs may jerk, or the patient may experience abnormal tastes or smells, or emotional states; as well as unusual behaviour such as lip-smacking or repetitive hand movements. www.brainaustralia.org.au /AZ_of_Brain_Disorders/epilepsy   (552 words)

Gene therapy decreases damage to rats' brains after seizure By using an altered form of herpes simplex virus to deliver a key gene to the brain cells of rats, the researchers demonstrated that they can reduce significantly the number of neurons that are killed, even when the treatment is administered after the brain trauma has begun. (A seizure is a surge of electrical impulses, analogous to a lightning storm in the brain. Her research was among the first to show that herpes simplex virus could deliver genes to the brain and change the physiology of neurons. www.stanford.edu /dept/news/pr/95/950731Arc5128.html   (1352 words)

Adult Health Advisor 2005.4: Seizures A seizure is a symptom, not a disease. Grand mal seizure: a generalized seizure that starts with a loss of consciousness and falling down, followed by a brief period of rigid muscles and a 1- to 2-minute period of violent, rhythmic jerking. Often the cause of seizures or the abnormal electrical signals in the brain is not known. www.med.umich.edu /1libr/aha/aha_seizure_crs.htm   (1285 words)

Researchers Create Model Of Brain's Electrical Storm During A Seizure Study Points To New Gene Therapy Tool In Preventing Epileptic Seizures (Jul. 25, 2003) — A new study by gene therapy scientists at the University of North Carolina at Chapel Hill may lead to an effective long-term treatment for preventing seizures associated with a common form of... Dogs May Be Responding To Psychological Seizures, Not Epilepsy Seizures (Jan. 23, 2007) — Reports of dogs that can predict their owners' epilepsy seizures have been anecdotal and not objectively confirmed by doctors and researchers. Childhood Epilepsy Research Offers New Hope For Seizure Control (Oct. 23, 2007) — Scientists still do not know what causes epileptic seizures, but researchers are one step closer to solving this puzzle with the help of their newly developed genetically modified epileptic... www.sciencedaily.com /releases/2005/02/050224122911.htm   (1527 words)

Seizure Disorder | Phoenix Arizona Head Injury Lawyer | Child Brain Tumor Seizure Symptoms | Brain Damage Attorney Mesa ... Seizures in children can be caused by brain injuries occurring at the time of birth. In adults, seizures can be caused by illness or a traumatic brain injury in a car or truck accident, a slip and fall accident, or any of a number of accidental causes. The seizure may be a symptom of a traumatic brain injury or serious illness. www.hppc-brain-injury-attorney.com /CM/BrainInjury/Seizures.asp   (410 words)

|| DukeMedNews || Experimental Brain Pacemaker Alleviates Seizures in Rats Their experiments in rats also involved testing the concept of a "brain pacemaker," which could be reduced to a small device that could detect potential seizure activity and stimulate the nerve to prevent seizures in humans. Their findings, reported in the Nov.1 issue of the Journal of Neuroscience, offer hope of greatly improved seizure control for the 10 percent to 50 percent of epileptic sufferers whose disorder is resistant to antiepileptic medication or surgery. Besides developing the "neurochips" for such a brain pacemaker, Nicolelis and his colleagues will also explore the ability of trigeminal nerve stimulation to reduce or prevent a wide variety of seizures. www.dukemednews.org /news/article.php?id=87   (915 words)

Epilepsy: Gaining Control with Medications and Surgery, University Hospital, Newark, NJ Williams was tested at University Hospital to determine her eligibility for a temporal lobectomy, a procedure in which the section of the brain that produces the seizures is removed. Identifying that area - the seizure focus - and determining its proximity to certain areas of the brain were questions that needed to be resolved. The focus for this type of seizure is often found in the hippocampus, which is located deep in the innermost part of the temporal lobe. www.theuniversityhospital.com /healthlink/archives/articles/epilepsy.html   (2319 words)

Seizure Types Seizures may be manifested in a wide variety of ways, including dramatic movements, unusual sensations, and alterations of consciousness. Depending on the area of the brain affected, these seizures could be expressed as shaking of a small part of the body, an unusual tingling or numbness of a localized body part, or even an unusual smell, visual hallucination, or ill-defined feeling. In addition, unlike absence seizures, complex partial seizures often are preceded by an aura and are followed by a state of sleepiness. www.neuro.wustl.edu /epilepsy/pediatric/articleSeizureTypes.html   (1224 words)

Wilderness: Seizure Some seizures may cause lip smacking, behaviorisms, staring spells, or other symptoms depending on in which area of the brain the seizure cause originates. Seizures may affect bladder and bowel control, and a person experiencing a seizure often bites his or her own tongue. During and after the seizure, attempt to keep the person on his or her side to allow fluid to drain from the mouth. www.emedicinehealth.com /wilderness_seizure/article_em.htm   (360 words)

Seizure Disorder Seizures are episodes during which the electrical system within the brain fires abnormally. Seizure disorders may be classified by the part of the brain they affect or the kinds of symptoms they cause. However, even with a history of seizures with fevers, medical attention should be sought immediately because of the possibility that the seizure may be related to a more serious medical condition such as encephalitis or meningitis. www.mbmc.org /healthgate/GetHGContent.aspx?token=9c315661-83b7-472d-a7ab-bc8582171f86&chunkiid=11874   (1338 words)

Rinfocan- Prescription Drug Information for Canadians This is an excessive and abnormal electrical discharge of brain cells usually producing an observable change in behavior (e.g., such as jerking movements of the arms and legs) and often impairment or loss of consciousness. An absence ("petit mal") seizure is another form of generalized seizure which produces a brief inhibition causing the patient to stare and become abruptly unaware of his surroundings for a period of usually less than 30 seconds. Most epileptic patients function perfectly normally between their seizures and when a seizure is not occurring would not be detectable as having epilepsy by those with whom they come in contact. www.islandnet.com /~rinfocan/noframes/epilepsy.htm   (2414 words)

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