Wednesday, December 12, 2012

Does Epilepsy Affect Intelligence/intellect?

This is my 11th blog on Epilepsy. You can some them here to get more information about new research on medicine and other areas. As we all know that Epilepsy is a neurological condition, which affects the nervous system. Epilepsy is also known as a seizure disorder.

Before we see this How Epilepsy Affect Intelligence/intellect on people/kids, we will see what is Intelligence?

Does Epilepsy Affect Intelligence/intellect?


 
Nov 30, 2012
Epilepsy is a neurological condition, which affects the nervous system. Epilepsy is also known as a seizure disorder. It is usually diagnosed after a person has had at least two seizures that were not caused by some known ...
 
 
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Epilepsy is a neurological condition, which affects the nervous system. Epilepsy is also known as a seizure disorder. It is usually diagnosed after a person has had at least two seizures that were not caused by some known ...
 
 
Jun 20, 2012
New study breakthrough emphasizes the association between inflammation and drug resistant epilepsy. This finding implies that an approach for the treatment of epilepsy could involve the use of an anti-inflammatory agent.
 
 
Nov 14, 2012
How a New Medicine offer Lot of promise for Epilepsy.
 
 

What is Intelligence?

 

Simply put, however, intelligence is the ability to learn about, learn from, understand, and interact with one’s environment. This general ability consists of a number of specific abilities, which include these specific abilities:
•Adaptability to a new environment or to changes in the current environment
•Capacity for knowledge and the ability to acquire it
•Capacity for reason and abstract thought
•Ability to comprehend relationships
•Ability to evaluate and judge
•Capacity for original and productive thought

Does Epilepsy Affect Intelligence/intellect?

There are many medicines approved for treating epilepsy. While cognitive slowing and mild reductions in attention and memory are common with the older medications, the more modern medications are generally less likely to have a negative impact on cognition. Most of the newer medications have neutral or beneficial effects on cognitive functioning. With good seizure control obtained from medication, individuals can experience an improvement in cognitive functioning.

Among neurological disorders, epilepsy is the third most common, affecting 1-2% of the population. Intellectual, psychiatric, and social-adaptive functioning can be affected in people with epilepsy. Research has been accumulating over decades, and the complex interaction between seizures and intelligence are becoming better understood. For any disease involving the brain there is the potential for impairment in intelligence and behavior. Most patients with epilepsy have normal intelligence, but some can have deficits in intelligence, memory, or other cognitive functions. This depends on multiple factors, including the epilepsy type, the cause of the seizures, the extent of brain damage if any, the seizure type(s), seizure control, medications, etc. On tests of general cognitive ability (so-called IQ tests), most individuals with epilepsy score normally. For example, individuals with “idiopathic” (genetic) have normal IQs. Individuals with focal (localized) epilepsy also usually have normal intellectual functioning. However, individuals with epilepsies caused by diffuse brain damage, such as Lennox-Gastaut syndrome, usually have cognitive deficits, including intellectual disabilities. In addition, individuals with seizures that are not controlled despite medication (refractory or intractable seizures) are at increased risk for intellectual disability.

Many childhood epilepsies are considered ‘benign’ because they are not associated with cognitive impairments and patients can grow out of them; more recent research has found mild cognitive deficits in these patients. In contrast, cognitive deficits, particularly involving memory, language, attention, problem solving and motor speed are often adversely affected in individuals with symptomatic epilepsies (that is, epilepsy associated with underlying neuroanatomical or neurophysiological abnormalities).

Temporal Lobe Epilepsy (TLE) is a common type of intractable epilepsy. It is often associated with mild impairments in memory along with language, reasoning, problem solving, visual-spatial and motor speed. These are usually detected by formal neuropsychological testing, which is part of the evaluation for possible epilepsy surgery. Increased seizure frequency is also associated with cognitive dysfunction. The more frequent the seizures, the more likely there is to be associated cognitive impairment. As such, it is important to gain control of seizures quickly. Individuals who have their epilepsy successfully treated can have improved intellectual functioning and memory.
Seizure control typically starts with medication. There are many medicines approved for treating epilepsy. While cognitive slowing and mild reductions in attention and memory are common with the older medications, the more modern medications are generally less likely to have a negative impact on cognition. Most of the newer medications have neutral or beneficial effects on cognitive functioning. With good seizure control obtained from medication, individuals can experience an improvement in cognitive functioning.
The course of cognitive dysfunction in TLE and memory deficits in particular is an area of intense research. Interestingly, cognitive deficits and memory loss have been found for children with a variety of epilepsy syndromes, suggesting cognitive dysfunction is present at time of seizure onset. In fact, some research suggests cognitive deficits involving attention problems and learning disorders are present in some children before a first seizure is recognized. Individuals with ongoing seizures in adulthood are at increased risk for increasing memory deficits and, in some cases, intellectual deficits. With good seizure control, individuals may be at less risk for experiencing cognitive decline.
(Source- epilepsy.com)

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