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Welcome to all who visit this Blog whether you suffer from Multiple Sclerosis or have a loved one who does. Hopefully this will help all who read understand that they are not alone even though MS affects us all in very different ways. Maybe it can help open eyes of those around who do not know the unpredictability of daily life with MS.
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Tuesday, September 20, 2011

Cognitive Dysfunction

Article obtained from: http://ms.about.com/od/signssymptoms/a/cognitive_over.htm?p=1

Cognitive Dysfunction as a Symptom of Multiple Sclerosis



By Julie Stachowiak, Ph.D., About.com Guide


Updated November 24, 2008

About.com Health's Disease and Condition content is reviewed by the Medical Review Board


.Ever feel lost?

Stephen Schauer / Getty Images
"Cognitive dysfunction as a symptom of multiple sclerosis 1(MS) may be the one that makes me the saddest. I can get angry at the “MS hug2” and frustrated with trembling hands3, but being mad at how my own brain and though patterns are misfiring is a little too complicated. It is also the symptom that is the hardest to talk about with people without MS, as it often comes across as a lame-sounding apology for being “ditzy” or is met with people mentioning how forgetful they have also become since they had children or turned 70.


Sure, we all misspell words sometimes or leave something off a list. However, many of us with MS have a moment that we can point to as evidence that the cognitive neurons are not as robust as they used to be. My “big moment” came when I intended to dash into a store to pick up some last-minute holiday wrapping supplies. I got into the middle of a big display area of giant shelves of shiny, colorful paper and ribbons – there was loud Christmas music blaring, twinkly lights blinking everywhere, and people grabbing at sale items while screaming at their out-of-school children. All of this “input” combined to not only completely make me forget what I came for, but to completely immobilize me. I don’t know how long I stood there staring uncomprehendingly at the whole scene before something jarred me back to reality and I fled from the store, empty-handed.

What Does It Feel Like?


While cognitive dysfunction feels different for everyone and can change daily, many people with MS can identify with part or all of the following descriptions of MS-related cognitive problems:


•Problems with Abstract Conceptualization: Put simply, this is difficulty with figuring things out in the “abstract” in a way that is going to lead to a desired outcome. It means that people get easily overwhelmed if something is too complex, as it is hard to organize thoughts and tasks, to apply lessons learned from multiple past experiences, and to be “flexible” enough in their thinking to come up with alternate solutions if a problem arises. This can negatively impact judgment.


•Short-Term Memory Deficits: The most common form of cognitive dysfunction in MS, this usually manifests in things like forgetting whose number you just dialed, going to the pantry and not knowing what you went there for (even though you just looked at your recipe), or being unable to remember if you took your pills or not. You may also find yourself repeating a sentence or part of a story to someone that you just told it to, not aware that you had already said it.


•Attention Difficulties: This can manifest as “distractability” or simply inability to keep your mind on a task. You may find that you are unable to multitask or that even minor ambient noise, like the television or music, can make it virtually impossible to concentrate on things like reading or performing sequential tasks, like those involved in cooking.


•Slower Speed of Information Processing: This includes all the aforementioned symptoms, and it means that the brain simply cannot take in and prioritize all of the information coming at a person at once. This includes problems processing language (spoken or written), sensory information (visual, sounds, smells, touch), spatial information (like that involved in navigating while driving), or more abstract things like social cues and reading people’s emotions.


How Common Is Cognitive Impairment?


Between 34 and 65 percent of people with MS have some sort of cognitive impairment. Even people who recently started having other MS symptoms may have cognitive dysfunction, but it might be so subtle that they didn’t notice it or attribute it to other things, such as aging or being tired.


What Causes It?


Cognitive dysfunction in MS seems to correlate with more permanent destruction of brain tissue, such as “black holes” and atrophy4. Therefore, cognitive dysfunction tends to be worse in people with progressive forms of MS than in people with relapsing-remitting MS. In general, people with progressive MS seem to be more severely affected (however, as mentioned, even people with very little disability can experience some degree of cognitive dysfunction). People with more pronounced cognitive dysfunction tend to have:


•More T1-Weighted Lesions: T1-weighted lesions 5in MS are areas that appear dark on MRI scans 6. These are also called “black holes” and indicate that there has been destruction of nerve fibers called axons7, not just demyelination.


•Atrophy of Corpus Callosum: This means that the bundle of nerve fibers that connect the right and left hemispheres of the brain has shrunk, due to destruction of nerve cells.


However, it can also be made worse temporarily by other symptoms of MS8, such as:


•Depression: Depression9, an extremely common symptom of MS, seems to impact cognitive function, especially in the areas of memory, attention and ability to concentrate. People who are depressed also often exhibit problems making good decisions, communicating and maintaining relationships with others and overall complex functioning, such as that required to make quick decisions and cope with complicated problems in everyday life.


•Fatigue: Fatigue10 is the most common symptom of MS, experienced by an estimated 85 to 95 percent of people with MS, and often considered the most debilitating. The crushing fatigue felt by people with MS can have a huge impact on how well we perform cognitively.


•Heat Intolerance: MS-related heat intolerance11 can make all symptoms of MS worse, including cognitive dysfunction.

How Severe Can It Get?



Cognitive problems in people with MS can become severe enough to make it difficult to work in a profession that requires speedy or complex problem-solving. Most people, however, can develop coping techniques that keep cognitive symptoms from interfering with daily life too much.


Real, debilitating dementia as a symptom of MS is very rare, occurring in less than 5 percent of patients, who are usually very severely affected by other MS symptoms. In contrast to other types of dementia, such as that caused by stroke or Alzheimer's disease, the following problems are NOT usually associated with MS-related cognitive dysfunction:






•Aphasia: Aphasia is the inability to understand the speech of other people and/or express oneself verbally. While people with multiple sclerosis (MS) often have trouble finding words or communicating, this is more often dysphasia, a symptom of MS that is not as severe as aphasia.


•Agnosia: Agnosia is difficulty recognizing familiar things, such as shapes, sounds, objects, people and smells.


Additional Points/Information


It Comes and Goes: Just like many other MS symptoms, cognitive problems will probably be worse at certain times. Other times, you may feel like your old self. See if there is a pattern to this (you may want to keep a symptom log or at least jot down notes for a couple of days). As much as possible, plan critical tasks for those times when you feel your sharpest. Also, notice if certain things make your cognitive problems worse – music, sounds from the television, encounters with certain people, even different kinds of lighting can have profound effects on cognition. When possible, adapt your environment and situation to make things better for you.






Remember, Life is Complex: Fight the urge to be hard on yourself or get too frustrated when something “slips through the cracks” and you are late to an appointment or forget to return a phone call promptly. If you think about it, pretty much everything we do involves many, many steps, requiring: use of long-term and short-term memory, monitoring and adapting to the reactions of others, simultaneously performing many related and unrelated tasks – all while often fighting fatigue or a number of other symptoms that we might have. Try an experiment for yourself: Take a child grocery shopping, cook dinner while talking on the phone or observe yourself getting ready for a meeting. Look at how many things have to happen to get from Point A to Point B and marvel that anyone gets anything accomplished.



My Experience


The first cognitive problem that I became aware of was a gradual fear of driving. At first, I would feel anxious that I would forget directions and be so preoccupied with getting lost that I would be stressed out when I went anywhere. Then I noticed that driving along even very familiar routes was becoming increasingly scary – I would be afraid to change lanes, nervous that I was going to run red lights, distracted by too many cars, frightened of big trucks and uneasy if the lighting was too bright, too dark, too dappled. As I had not yet been diagnosed with MS, I just told myself that I was being silly and kept pushing it, until the anxiety started really limiting my activities.


Since my diagnosis, I have noticed many more cognitive symptoms. Conversations are sometimes hard to keep up with and I often find myself making a point out of context. I know that I repeat myself a lot and have a habit of not finishing sentences. When I am writing, I fight the urge to steer away from certain words that I seem to have forgotten how to spell.



I've made several adaptations when it comes to driving: I haven't driven on the highway in many years, and I prefer to drive alone, so that I can focus 100% of my attention on the road and what I am doing. But on good days, I still try to make small neighborhood trips during quiet traffic times. Aside from driving, I have noticed that I sometimes want to avoid conversation so people don't pick up on any of my cognition problems. But because I want to stay engaged and social, I make a serious effort to chat with people -- I figure no one will be seriously injured (unlike driving) if it takes me a couple of minutes to find the word that I am looking for or I tell a story for the second time in five minutes. "




This is not my article, but obtained from about.com.  The link is above, but is reflective of what I feel a lot of the times.