DISABILITY
A
group of biomedical disciplines that study the structure and function of the
healthy or pathological nervous system, as well as the principles of nervous
system phylogeny and ontogeny. The theoretical bases of neurology include neurophysiology
and such morphological disciplines as the anatomy, histology, embryology, and
comparative anatomy of the nervous system. Neuropsychology is a division of
neurology. Clinical neurology, which is the study of nervous diseases, is
called neuropathology in the USSR.
Neurosurgery deals with nervous system diseases whose treatment is mainly
surgical. Mental diseases constitute a special group of central nervous system
disorders; these are the subject of psychiatry.
In
ancient times, physicians were to some extent familiar with the morphology of
the nervous system: they recognized the difference between the brain and the
spinal cord, they determined the relationship between nerves and the brain, and
they described the brain meninges. In the 16th century, A. Vesalius studied the
nervous system from the point of view of the interrelationship between form and
function; such an approach has dominated the study of neurology to this day.
The accumulation of anatomical data proceeded during the centuries that followed.
During the 19th century, the development of microscopy led to the accurate
description of the neuron, of the nerve pathways, and of the centers of the
nervous system. Neurophysiology developed simultaneously with the histology and
descriptive anatomy of the nervous system.
R.
Boyle and F. Redi initiated exploration of the animal brain by performing brain
ablation studies. The development of experimental neurology in the first half
of the 19th century made it possible for F. J. Gall to advance the hypothesis
of localization of brain function. Special centers that control motor and
sensory functions were discovered in the brain and spinal cord. Disturbances in
motor and sensory function, especially those that occur when half the spinal
cord is severed, were described in 1849 by C. Brown-Séquard. Improvements in
microscope technology and the development of methods for fixing cerebral
tissues made it possible to study the microstructure of the brain.
In the
second half of the 19th century, progress was made by J. F. Cohnheim and other
researchers in studying the vascularization of the brain. At the same time,
microscopic studies of brain structures were being carried out by other
scientists, including the German anatomist and neurologist P. Flechsig and the
French morphologist L. Ranvier. The phylogeny and ontogeny of the nervous
system were also investigated during the second half of the 19th century. F. V.
Ovsiannikov, V. A. Betz (Bets), N. M. Iakubovich, and V. M. Bekhterev made
important contributions to the study of brain structures, including the
discovery of Betz cells and Iakubovich’s and Bekhterev’s nuclei. At the turn of
the 20th century, the physiological investigations of I. M. Sechenov, N. E.
Vvedenskii, and C. Sherrington were especially significant to the development
of neurology.
The
20th century has seen many important achievements in the field of neurology.
Among these are the teachings of I. P. Pavlov on higher nervous activity, the
explanation of the evolutionary genetics that define structure and function in
the brain, and the inclusion of new data on the vertical levels of organization
of brain activity into the older concepts about the horizontal levels of
integration of nervous activity. Researchers in these areas include H. Magoun and
G. Moruzzi in the USA, W.
Pen-field and H. Jasper in Canada,
and O. Sager, in the Socialist Republic of Rumania. J. Delgado in the USA
and R. Hassler in the Federal Republic of Germany studied the functions of the
brain by electrostimulation of the deep cerebral structures. Significant
progress has also been made in understanding neuronal chemistry and the
biochemical differences between the various structures of the central and
peripheral nervous systems. The development of cybernetics as applied to neurology
has occasioned attempts to create mathematical models that reflect
morphological and physiological aspects of brain processes. The
interrelationship of the brainstem and the subcortex received special
consideration in these mathematical investigations. One potentially fruitful
application of mathematical modeling methods to neurology is the possibility of
representing cerebral reflex processes in the brain in the form of cybernetic
diagrams.
The
works of Pavlov’s school has exerted a singular influence on the development of
neurology in the USSR.
L. A. Orbeli developed the concept of the adaptotrophic function of the
cerebellum and experimentally established the influence of the sympathetic
nervous system on muscle contraction (the Orbeli-Ginetsinskii phenomenon). V.
N. Chernigovskii significantly contributed to the study of interoception, and
K. M. Bykov, to the study of the interrelation of the cerebral cortex and the
internal organs.
P. K.
Anokhin facilitated the investigation of the integrative activity of the brain
by introducing his theory of functional systems. E. A. Asratian experimentally
induced various lesions in the brain in order to study the high degree of
cerebral plasticity; these investigations were important in establishing a
theory to explain the recovery of neurologic functions and to elucidate the
compensatory processes that occur in response to a neurologic injury. N. A.
Bernshtein formulated the principles of the organization of motor functions.
The investigation of the cytoarchitectonics of the brain has been continued by
the German neurologists K. Brodmann, S. Vogt,
and O. Vogt and by several Soviet neurologists, including S. A. Sarkisov and I.
N. Filimonov. B. N. Klosovskii has continued the study of vascular structure in
the brain.
The
electrode implants and stereotoxic operations performed by Bekhterev and other
scientists who employ microelectrode techniques have uncovered new data on the
functional significance of various regions of the brain. The use of these
methods has contributed to the development of the doctrine of localization of
function in the central nervous system and has opened up the possibility of
directing mental processes during pathological states.
Major
scientific centers where neurology is studied in the USSR include the Institute
of Brain Research and the Institute of Neurology of the Academy of Medical
Sciences of the USSR and the Institute of Higher Nervous Activity and
Neurophysiology of the Academy of Sciences of the USSR (Moscow); the Institute
of Experimental Medicine of the Academy of Medical Sciences of the USSR and the
V. M. Bekhterev Psychoneurological Institute (Leningrad); the Institute of
Psychiatry and Neurology (Kharkov); the Institute of Neurology, Neurosurgery,
and Physiotherapy (Minsk); and the Institute of Experimental and Clinical
Neurology (Tbilisi). Problems of neurology are discussed in several
publications, including Zhurnal nevropatologii i psikhiatrii im. S. S.
Korsakova (S. S. Korsakov Journal of Neuropathology and Psychiatry;
published since 1901), Klinicheskaia meditsina (Clinical Medicine;
published since 1920), and Voprosy neirokhirurgii (Problems of
Neurosurgery; published since 1937).
Abroad,
the important research centers in neurology include the Neurological Institute
of Columbia-Presbyterian Medical Center in New York City and the National
Institute of Neurological Diseases and Stroke in Bethesda, Md., in the USA; the
National Hospitals for Nervous Diseases in Great Britain; the Max Planck
Institute in the Federal Republic of Germany; the Montreal Neurological
Institute; the Psychoneurological Institute in the Polish People’s Republic;
the Institute of Neurology in the Socialist Republic of Rumania; and the Center
for Neurology, Psychiatry, and Neurosurgery in the People’s Republic of
Bulgaria. Neurological research is covered in the following general medical and
specialized journals: Neurology (published in Minneapolis, Minn., since
1951), Archives of Neurology (published in Chicago, III., since 1919), Journal
of Nervous and Mental Diseases (published in Baltimore, Md., since 1874), Brain
(published in London since 1878), Nervenartz (published in Berlin since
1928), Revue neurologique (published in Paris since 1893), European
Neurology (published in Basel since 1968), and Journal of the
Neurological Sciences (published in Amsterdam since 1964). The World
Federation of Neurology unites neurologists of various countries. International
congresses on neurology have been held since 1897.
Neurology
Neurology is the study of the anatomy, physiology, and
diseases of the nervous system. It is the study of the anatomy, physiology, and
disorders of the nervous system.Neurology
is the study of the morphology,
physiology, and pathology of the human nervous system. As researchers,
neurologists carry on investigative and experimental work in such areas as
conductivity, embryology, and the metabolism of nervous tissue. As practicing
physicians, neurologists diagnose and treat diseases that involve the nervous
system. Since the brain, spine, and eye are integral part of the nervous
system, the domain of neurology overlaps that of psychiatry, orthopedics and
ophthalmology. Current research is directed toward spinal cord injuries, brain
tumors, reattachment of severed limbs, and the treatment of conditions
generated by repetitive motions. The recent discovery of growth factors
opens the possibility of healing or regenerating tissues of the nervous system.
Medical specialty concerned with nervous system
function and disorders. Clinical neurology began in the mid-19th century, when
mapping of the functional areas of the brain first began and understanding of
the causes of conditions such as epilepsy improved. The development of electroencephalography
in the 1920s aided in the diagnosis of neurological disease, as did the
development of computerized
axial tomography in the 1970s and nuclear magnetic resonance
imaging in the 1980s. In addition to dealing with physical disorders
(e.g., tumours, trauma), neurology is unique among medical specialties in its
intersection with psychiatry. Greater understanding of the brain
chemistry of disorders such as schizophrenia and depression has led to a wide array of effective
drugs that nevertheless work best in conjunction with psychotherapy. Side
effects of drug or surgical therapy can be serious, and many nervous system
disorders have no effective treatment. Medical speciality concerned with the
study and treatment of disorders of the brain, spinal cord, and peripheral
nerves.
Neurological
disorder
Neurological disorders are
disorders that involve the nervous system, for example the brain, muscles, or
spinal cord. This includes such diseases as Lou Gehrig's disease (ALS),
cerebral palsy, multiple sclerosis, Parkinson's disease, spina bifida, spinal
cord injury (SCI), and stroke, among others. Each one of these conditions will
have its own neurological assessment, and each will have its own treatment approach
and rehabilitation plan. This section will explain more about specific
neurological disorders, including their symptoms, diagnoses, and treatments.
A neurological disorder is a disorder of the body's nervous system.
Structural, biochemical or electrical abnormalities in the brain or spinal cord, or in the nerves leading to or
from them, can result in symptoms such as paralysis, muscle weakness, poor coordination, loss of sensation,
seizures,
confusion,
pain and altered levels of consciousness. There are
many recognized neurological disorders, some
relatively common, but many rare. They may be revealed by neurological
examination and studied and treated within the specialities of neurology and clinical
neuropsychology. Interventions include preventative measures, lifestyle changes, physiotherapy
or other therapy, neurorehabilitation,
pain management, medication,
or operations
performed by neurosurgeons. The World Health
Organization estimated in 2006 that neurological disorders and their
sequelae
affect as many as one billion people worldwide, and identified health inequalities and social stigma/discrimination as major
factors contributing to the associated disability and suffering.[1]
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Definition of Neurological Disorders
, eHow Contributor
o Neurological disorders are disorders that affect motor
and cognitive abilities. When affected by such illnesses, a person's memory,
concentration, speech, and physical elements can be drastically altered. Some
of these people cannot take care of themselves, such as with feeding,
clothing, and other basic everyday activities. There are numerous
neurological disorders that progress over time and many that are present at birth.
Not only do the people who live with these disorders suffer, however, their
loved ones also experience great pain.
Alzheimer's Disease
o Alzheimer's Disease is an extreme case of irreversible
memory loss. The ailment typically occurs in older people. The disease can
affect some starting in their 30s caused by a mutated genetic occurrence;
this process is called early onset Alzheimer's Disease. Majority of suffers
exceed the age of 65 years old. A distinctive effect of this disorder
includes losing the ability to recognize or remember loved ones. There are
treatments used to maintain the disease and allow some the ability to keep up
cognitive skills; however, there is no cure to stop the progressing process.
ADHD
o ADHD translates into Attention Deficit-Hyperactivity
Disorder which is commonly known to affect young children. It is a behavioral
disorder that can also expand into adulthood, and those that experience it
have trouble focusing, organizing, completing tasks and consistently moving
around. There are no remedies that can completely treat this disorder;
however, stimulants, such as Ritalin, may be used to help calm the symptoms.
Autism
o Autism is a social disorder, and those affected have
trouble adequately communicating, both verbally and non-verbally. In children
and adults, signs include delayed speech, no interest in socialization,
depression, and no reactions toward different emotions. They also show signs
of obsessive behavioral constantly repeating actions. Therapy is available
for treatment in hopes of breaking speech and social inadequacies.
Dyslexia
o Dyslexia is a learning disability that mainly affects a
person's ability to read sufficiently, formulate correct spelling, view
letters and words smoothly, and satisfactory process sound and visual commands.
Usually this disorder is recognized within school aged children and can continue
throughout adulthood. Educational therapies and activities are utilized to
help improve symptoms, which has been effective in combating this disorder.
o
Parkinson's Disease
o Parkinson's Disease is a disorder which greatly affects
the motor system causing uncontrollable trembling of the face, arms, and
legs. The ability to speak, walk, chew and shallow food are among many debilitating
symptoms that alter the capacity to care for oneself. Mainly people over the
age of 50 are affected; however, symptoms can begin to appear well before
then. There are numerous medications available to help subdue the symptoms,
however, there is no cure for the disease. When medication provides no
relief, a deep brain stimulation, which is an implanted pulse generator in
the brain, can improve motor skills and moderate trembling and other issues
with the disease.
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Causes
Part of the causal chain leading to Alzheimer's
disease.
Although the brain and spinal cord are surrounded by
tough membranes,
enclosed in the bones of the skull and spinal vertebrae,
and chemically isolated by the so-called blood-brain barrier,
they are very susceptible if compromised. Peripheral nerves
tend to lie deep under the skin but are also still relatively exposed to
damage. And individual neurons, the building blocks of the nervous system, and the neural networks
into which they form, are susceptible to electrochemical and structural
disruption. While neuroregeneration
may occur in the peripheral nervous system, it is thought to be rare in the
brain and spinal cord.
The specific causes vary by disorder and sometimes by
individual case, but can include genetic disorders;
congenital abnormalities or disorders; infections;
lifestyle or environmental
health problems including malnutrition; and brain injury, spinal cord injury or nerve injury. The problem
may start in another body system that interacts with the nervous system; for
example cerebrovascular disorders involve brain
injury due to problems with the blood vessels
(cardiovascular system) supplying the brain, and
autoimmune
disorders involve damage caused by the body's own immune system.
In a substantial minority of cases of neurological
symptoms, no neural cause can be identified using current testing procedures, and
such "idiopathic"
conditions can invite different theories about what is occurring.
Classification
Anatomy of the human brain.
Neurological
disorders can be categorized according to the primary location affected, the
primary type of dysfunction involved, or the primary type of cause. The
broadest division is between central nervous system (CNS) disorders and
peripheral nervous system (PNS) disorders. The Merck Manual
lists brain, spinal cord and nerve disorders in the following overlapping
categories:
- Brain:
- Brain damage according to cerebral lobe (see also lower brain areas such as basal ganglia, cerebellum, brainstem):
- Frontal lobe damage
- Parietal lobe damage
- Temporal lobe damage
- Occipital lobe damage
- Brain dysfunction according to type:
- Aphasia (language)
- Dysarthria (speech)
- Apraxia (patterns or sequences of movements)
- Agnosia (identifying things/people)
- Amnesia (memory)
- Spinal cord disorders (see spinal pathology, injury, inflammation)
- Peripheral nervous system disorders
- Cranial nerve disorders
- Autonomic nervous system disorders
- Seizure disorders such as epilepsy
- Movement disorders such as Parkinson's disease
- Sleep disorders
- Headaches (including migraine)
- Lower back and neck pain (see Back pain)
- Other pain (see Neuropathic pain)
- Delirium and dementia such as Alzheimer's disease
- Dizziness and vertigo
- Stupor and coma
- Head injury
- Stroke (CVA, cerebrovascular attack)
- Tumors of the nervous system (e.g. cancer)
- Multiple sclerosis (MS) and other demyelinating diseases
- Infections of the brain or spinal cord (including meningitis)
- Prion diseases (a type of infectious agent)
- Complex regional pain syndrome (CRPS) (a chronic pain condition.)
Neurological
disorders in non-human animals are treated by veterinarians.
Neural and mental dysfunction
Mental disorders, learning disabilities and mental retardation are not
usually classed as primarily neurological. However the distinction can be a
matter of some debate, either in regard to specific facts about the cause of a
condition or in regard to the general understanding of brain and mind. Furthermore the definition of disorder can be contested in regard to what is
considered abnormal, dysfunctional, harmful or unnatural in neurological,
evolutionary,
psychometric
or social terms.
While certain types of mental condition are not usually
classified primarily as neurological disorders, and certain types of brain
disorder are not usually classified primarily as mental conditions, there are
now an array of basic sciences that deal with the continuum between the neural
and the mental, including subspecialities of psychology and neuroscience such as neuropsychology, cognitive
neuropsychology or cognitive (thought) neuroscience, affective (emotion) neuroscience, behavior neuroscience (also known as
biopsychology), social neuroscience,
and neurophenomenology
(subjective experience and consciousness).
Different levels of analysis in the understanding of cognition
in the brain.
These basic fields inform the applied medical and
clinical disciplines of neurology,
psychiatry and clinical psychology,
whose theories and treatments now routinely encompass a biopsychosocial
model. These disciplines in turn comprise subspecialities such as behavioral
neurology, neuropsychiatry
and clinical
neuropsychology that deal with cases where a connection between
mental/behavioral problems and brain dysfunction is particularly called for. Biopsychiatry
is the general term for the approach in psychiatry that seeks to explain all
mental disorders primarily in terms of the biological functioning of the
nervous system.
The conventional distinctions drawn between mind, brain
and nervous system are to some extent mirrored by the various overlapping
categories of clinical examination, namely mental state examination, neuropsychological
assessment and neurological
examination. At the present time a brain scan
alone cannot accurately diagnose a mental disorder or tell the risk of
developing one, but can be used to rule out other medical conditions such as a brain tumor.
Such distinctions can affect the explanation given for
idiopathic (of unknown origin) neurological symptoms if it is thought (perhaps
by exclusion of any other diagnosis) that higher
brain/mental activity is causing symptoms that usually originate in other areas
of the nervous system. Classic examples are "functional" seizures, sensory numbness,
"functional" limb weakness and functional
neurological deficit ("functional" in this context is
usually contrasted with the old term "organic disease").
Such cases may be contentiously interpreted as being "psychological"
rather than "neurological". In psychiatry some cases may then be
classified as mental disorders, for example conversion disorder
if the symptoms appear to be causally linked to emotional states or responses
to social stress. However there are also accepted
neurological conditions of dissociation
where the brain/mind appears to register neurological stimuli that cannot
possibly be coming from the part of the nervous system to which they would
normally be attributed, such as phantom pain or synesthesia, or where
limbs act without conscious direction as in alien hand syndrome.
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Neurological impairments
are a group of disorders that primarily relate to the central nervous system
comprised of the brain and spinal cord. Among the more common diagnostic
categories and conditions are cerebral palsy, epilepsy, brain injury,
multiple sclerosis, Tourette’s Syndrome.
A neurological impairment or
disability may affect an individual’s speech, motor skills, vision, memory,
muscle actions and learning abilities.
Neurological impairments are
categorized into three major types: Childhood Aphasia which primarily affects
speech and language abilities’; Minimal Brain Dysfunction that affects
learning and behavioral abilities; and Learning Disability which primarily
affects understanding or the ability to process language.
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Neurological-Disability
is important to recognize and treat as many neurological diseases need to be
"lived-with" for an extended period rather than cured in a short
space of time"
Types of neurological impairments and examples of how they may be managed
Cognitive and Psychological Issues:-
Medical, psychological, social manipulation including support groups
Speech and Swallowing:-
Speech and Language therapy, communication devices, food
processing, PEG feeding, nutritionist assessment
If you or a loved one have a speech disorder that requires speech therapy, speech-therapy-on-video.com
can help.
Double Vision (diplopia):-
Prismatic lenses
Motor Function in Arms:-
Physiotherapy, occupational therapy, specialized keyboard and writing devices and manipulation of other environmental features and objects to increase functional quality of life (phone, bathrooms, stairs etc)
Walking (gait) problems:-
Walking aids (cane, walking frame) wheelchair, electric buggy, stair-lift, bars, ramps, lifts, hoists (e.g. for bath), specialized shoes and leg / ankle supports for weakness in specific muscle groups e.g. "foot-drop"
Sphincter problems:-
Catheterization (including by patient themselves), medications to decrease bladder sensitivity, laxatives, suppositories, enemas.
Sexual dysfunction:-
Medications (viagra, cialis etc), lubricants, sexual therapy counselling,
Recurrent falls:-
Pad / carpet floors, sometimes may consider stopping blood-thinning medication (with medical consultation) helmets, panic button, pad various parts of body, provide shoes with improved traction
Neurological disorder
disturbance in structure or function of the central nervous system
resulting from developmental abnormality, disease, injury or toxin
Neurological Conditions
What is Neurology?
Neurology
is a branch of medicine dealing with disorders of the nervous system. Medical
professionals specializing in the field of neurology are called neurologists
and are trained to diagnose, treat, and manage patients with neurological
disorders.
Neurological
Disorders Include:
Disorders involving
muscles.
Structural disorders of
the brain and spinal cord.
Structural disorders of
the nerves in the face, trunk and limbs.
Conditions which are
not caused by structural disease such as many varieties of headache.
Conditions such as
epilepsy, fainting and dizziness which are often caused by disordered
physiology, rather than abnormal anatomy.
Neurological conditions
are the most common cause of serious disabilities and have a major, but often
unrecognised, impact on health and social services.
Neurological
Conditions
Public Speaking and Panic Attacks - Public
speaking for people who suffer from panic attacks or general anxiety often
becomes a major source of worry weeks or even months before the speaking event
is to occur.
Causes of Panic Attacks - The short and obvious
answer: panic attacks are caused by high anxiety. But, what exactly is anxiety?
Understanding how anxiety crops up will help you defeat panic attacks.
Post Polio Syndrome - Post-polio syndrome (PPS)
is a condition that affects polio survivors years after recovery from an
initial acute attack of the poliomyelitis virus. PPS is mainly characterized by
new weakening in muscles that were previously affected by the polio infection
and in muscles that seemingly were unaffected.
List of Neurological Disorders - Alphabetical
list of currently known Human Neurological Conditions with links to definitions
for each disorder.
Human Brain Facts and Answers - Questions
answers and facts relating to the human brain and the study of the brain organ
including the spinal cord.
Definitions of Human Brain Components - Glossary
of words used to define various parts and actions relating to the human brain.
Overcoming Agoraphobia - Agoraphobia is the fear
of open spaces or of being in crowded, public places such as shopping malls,
grocery stores, train stations, restaurants, really anywhere that is out of a
person's comfort zone such as their home.
Migraine Relief from Belladonna - I strongly
recommend that anyone who suffers from migraine attacks should consult with a
homeopath as I'm sure they will find the experience and their professionalism
as 'life-changing' as I have.
The Common Headache - There can be very few
people who have not experienced a headache and yet, despite the fact that they
are so common, their cause remains something of a mystery.
Migraine Headaches - Unlike normal headaches,
migraines are also often accompanied by other symptoms which include
sensitivity to light and noise, nausea and sometimes vomiting.
Neuropathic Pain - There has been a wealth of
research into what causes pain. It is a symptom or warning of an underlying
medical problem. Researchers can describe in detail how the sensation is
transmitted from its source to the brain so we become aware of the problem and
can take action to treat it.
Back Pain And Multiple Sclerosis - Multiple
Sclerosis is a progressive disease such as demyelinating and affects the motor
and sensory neurons.
Multiple Sclerosis Research - In multiple
sclerosis research major gains have been made in identifying the role of the
immune system in the development of MS lesions.
Famous People with Schizophrenia - This article
lists well known and famous people who have and had Schizophrenia.
What is Neurofibromatosis? - The
neurofibromatoses are genetic disorders of the nervous system that primarily
affect the development and growth of neural (nerve) cell tissues. These disorders
cause tumors to grow on nerves and produce other abnormalities such as skin
changes and bone deformities.
Definitions -
Neurological Conditions - - Joubert
Syndrome - Joubert Syndrome is a rare brain malformation
characterized by the absence or underdevelopment of the cerebellar vermis - an
area of the brain that controls balance and coordination.
- Zellweger Syndrome
- Zellweger Syndrome is one of a group of related diseases called
peroxisome biogenesis disorders (PBD), which are part of a larger group of
diseases known as the leukodystrophies.
Panic Attacks - Symptoms of Anxiety - A panic
attack always comes with the acute sense of impending doom. You feel you are
either about to lose your mind or one of your vital bodily functions is about
to cease functioning and you will end your days right there among the canned
goods and frozen food.
Post Concussion Syndrome - Post concussion
syndrome (PCS) is a combination of disorders which can occur after injury to
the brain. A severe brain injury is not necessary to cause PCS, even a mild
trauma to the brain can cause the symptoms to appear.
Dystonia - Dystonia is a
neurological movement disorder characterized by involuntary muscle
contractions, which force certain parts of the body into abnormal, sometimes
painful, movements or postures. Dystonia can affect any part of the body
including the arms and legs, trunk, neck, eyelids, face, or vocal cords.
Sanity Reality or Fabrication? - Modern
psychology does not define the term "sanity." Look it up in any
psychology book and you'll find not a single attempt to actually define what it
is to be sane. Different countries have legal systems that define sanity, in
the same way that individuals define what is and is not sane for themselves.
Schizophrenia - All of us, somehow, have
experienced hearing something only to discover nothing when we turn our heads.
But not all of us experience hearing voices inside our minds that tell us to do
something which turn us into monsters of sorts.
- Hypertonia is a condition marked by an abnormal increase in
muscle tension and a reduced ability of a muscle to stretch. It is caused by
injury to motor pathways in the central nervous system, which carry information
from the central nervous system to the muscles and control posture, muscle
tone, and reflexes.
- Approximately
2 million people in the United
States have epilepsy, a chronic disorder of
the brain that causes a tendency to have recurrent seizures.
Health with Cerebral Palsy - Some kids with CP
use wheelchairs and others walk with the help of crutches or braces. In some
cases, a kid's speech may be affected or the person might not be able to speak
at all.
- Cerebral palsy can't
be cured, but treatment will often improve a child's capabilities. Many
children go on to enjoy near-normal adult lives if their disabilities are
properly managed.
Do Adults with Cerebral Palsy Face Special Health
Challenges? - Before the mid-twentieth century, few children with
cerebral palsy survived to adulthood. Now, because of improvements in medical
care, rehabilitation, and assistive technologies, 65 to 90 percent of children
with cerebral palsy live into their adult years.
Caregivers of Parkinsons Patients - It can be
very challenging to cope with the long-term degenerative effects of, and the
potential loss of independence that may result from Parkinson's disease.
Carpal Tunnel Ergonomics - The basic concepts
behind carpal tunnel ergonomics are discussed here to give people a better idea
of how they can be applied. carpal tunnel is found in both the palm and wrist
where the forearm and hand's tendons and nerves pass.
Amnesia - Amnesia is a condition which can define by
the loss of memory which can last for two hours or sometimes two months or
more.
Understanding and Dealing with Panic Attacks - A
Panic attack is an intense feeling of fear, a feeling of impending doom.
Sufferers may feel that they are going crazy or that they are on the verge of a
heart attack. Panic attacks may feel terrifying at the time, but they are not
dangerous, it is just a flow of adrenalin surging through your body.
Migraine Headaches - The Critical First Ten Minutes
- Anyone who has ever experienced migraine headaches knows how painful and
tortuous life can be after a migraine begins. One never knows if the headache,
once it begins, will turn into one of those migraine headaches that can leave
someone incapacitated for hours or for days.
Panic Disorder - The Frightening Truth - Panic
disorder is an often misunderstood illness which may strike the afflicted
person at any time, day or night. Some of the symptoms of this illness are
sudden weakness, dizziness, tingling or numbness in the extremities, and nausea
which is preceded by a sudden and overwhelming attack of terror.
Carpal Tunnel Sydrome Exercises - Carpal Tunnel
Syndrome (CTS), is a condition of the median nerve in the wrist being
compressed as entering the inflamed carpal tunnel.
Encephalitis - Encephalitis means
"inflammation of the brain," but it usually refers to brain
inflammation caused by a virus.
Huntingtons Disease - Huntington's
disease (Huntington's chorea) is a progressive, degenerative disease that
causes certain nerve cells in your brain to waste away.
Meningococcal Meningitis - Every
year in the United States,
nearly 300 people die of meningococcal meningitis and many more experience
serious complications from this disease. Another 700 people develop
pneumococcal meningitis. In both cases, most of those affected are children
under the age of 5.
brain
damage - injury to the brain
that impairs its functions (especially permanently); can be caused by trauma to
the head, infection, hemorrhage, inadequate oxygen, genetic abnormality, etc.
brain
disease, brain disorder, encephalopathy
- any disorder or disease of the brain
ataxia,
ataxy,
dyssynergia,
motor ataxia - inability to coordinate voluntary muscle
movements; unsteady movements and staggering gait
atopognosia,
atopognosis - absence or loss of topognosia; inability to locate
correctly a point of touch
dyskinesia - abnormality in performing voluntary muscle movements
chorea - any of several degenerative nervous disorders
characterized by spasmodic movements of the body and limbs
flaccid paralysis - weakness or loss of muscle tone resulting from injury or
disease of the nerves innervating the muscles
ALS,
amyotrophic lateral sclerosis, Lou Gehrig's disease - thickening of tissue in
the motor tracts of the lateral columns and anterior horns of the spinal cord;
results in progressive muscle atrophy that starts in the limbs
athetosis - a continuous succession of slow, writhing, involuntary
movements of the hands and feet and other body parts
kuru - a progressive disease of the central nervous system
marked by increasing lack of coordination and advancing to paralysis and death
within a year of the appearance of symptoms; thought to have been transmitted
by cannibalistic consumption of diseased brain tissue since the disease
virtually disappeared when cannibalism was abandoned
nerve compression - harmful pressure on a nerve
(especially in nerves that pass over rigid prominences); causes nerve damage
and muscle weakness
Focal neurological deficits
Definition
A focal
neurologic deficit is a problem in nerve, spinal
cord, or brain
function that affects a specific location, such as the left face, right arm, or
even a small area such as the tongue.
It also refers to any problem with a specific nervous system function such
as memory or emotion.
The type, location, and severity of the problem can indicate the area of
the brain or nervous system that is affected.
In contrast, a non-focal problem is NOT specific -- such as a general loss of consciousness.
Alternative Names
Neurological deficits - focal
Considerations
A focal neurologic problem can affect any function:
- Movement changes include paralysis, weakness, loss of muscle control, increased muscle tone, loss of muscle tone, or involuntary movements (such as tremor)
- Sensation changes include paresthesia (abnormal sensations), numbness, or decreases in sensation
Other examples of focal loss of function include:
- Horner's syndrome: one-sided eyelid drooping, lack of sweating on one side of the face, and sinking of one eye into the socket
- Inattention to the surroundings or a part of the body (neglect)
- Loss of coordination, or loss of fine motor control (ability to perform complex movements)
- Poor gag reflex, swallowing difficulty, and frequent choking
- Speech or language difficulties such as aphasia (a problem understanding or producing words) or dysarthria (a problem making the sounds of words), poor enunciation, poor understanding of speech, impaired writing, impaired ability to read or to understand writing, inability to name objects (anomia)
- Vision changes such as reduced vision, decreased visual field, sudden vision loss, double vision (diplopia)
Common Causes
Anything that damages or disrupts any PART of the nervous system
can cause a focal neurologic
deficit. Examples include:
- Brain tumor
- Cerebral palsy
- Disorders of a single nerve or nerve group (for example, see carpal tunnel syndrome)
- Infection
- Neurodegenerative illness
- Stroke
- Trauma
- Vascular malformation
Home Care
Home care depends on the type and the cause of neurologic loss.
Health Care
The health care provider will take medical history
and perform a physical
examination.
Medical history questions detailing neurological deficits may include:
- When did the problem start and how fast is it changing?
- Was it sudden or gradual?
- Has it worsened over seconds, minutes, hours, days, or months?
- How long have you had the problem?
- Where is the loss of function?
- Left arm?
- Left leg?
- Right arm?
- Right leg?
- Another location (be specific)?
- What deficits are present?
- Loss of hearing?
- Loss of movement?
- Loss of strength?
- Loss of vision?
- Numbness?
- Speech problem or language problem?
- Other (be specific)?
- What other symptoms do you have?
The physical examination will include a detailed examination of nervous
system function.
Diagnostic tests vary depending on other symptoms and the suspected cause
of the nerve function loss. Tests used ot evaluate focal neurologic deficits
are aimed at locating the place in the nervous system that is involved. Common
examples are:
- CT scan of the back, neck, or head
- EMG (electromyogram)/NCV (nerve conduction velocities)
- MRI of the back, neck, or head
A focal neurologic deficit is a problem in nerve, spinal cord, or brain function
that affects a specific location, such as the left face, right arm, or even a
small area such as the tongue. It also refers to any problem with a specific
nervous system function such as memory...
Smell - impaired
Impaired smell is the partial or total loss of the sense of
smell. Loss of smell; Anosmia The loss of smell can occur as a result of nasal
congestion or blockage of the nose and isn't serious, but it can sometimes be a
sign of a nervous system...
Inhibition
The
blocking or limiting of the activity of an organ, tissue, or cell of the body,
caused by the action of a nerve or neuron or by the release of a substance such
as a hormone or neurotransmitter
Narcolepsy
- a neurological condition most characterized by Excessive Daytime Sleepiness
(EDS). A narcoleptic will most likely experience disturbed nocturnal sleep,
which is often confused with insomnia, and disorder of REM or rapid eye
movement sleep. It is one of the dyssomnias. A narcoleptic may also sleep at
any random time.
Neuroacanthocytosis - a rare movement disorder marked by progressive muscle
weakness and atrophy, progressive cognitive loss, chorea (involuntary twisting
movements of the body), and acanthocytosis (spiked red blood cells associated
with several inherited neurological disorders). Other symptoms include facial
tics, uncontrolled muscle movement, instability when walking, seizures, biting
of the tongue and lips, and changes in personality, comprehension, and
judgment.
Neurodegeneration
with Brain Iron Accumulation - (NBIA) is a
rare, inherited, neurological movement disorder characterized by progressive
degeneration of the nervous system. Symptoms, which vary greatly among patients
and usually develop during childhood, may include slow writhing, distorting
muscle contractions of the limbs, face, or trunk, choreoathetosis (involuntary,
purposeless jerky muscle movements), muscle rigidity (uncontrolled tightness of
the muscles), spasticity (sudden, involuntary muscle spasms), ataxia (inability
to coordinate movements), confusion, disorientation, seizures, stupor, and
dementia.
Neurofibromatosis - an autosomal dominant genetic disorder. It encompasses a
set of distinct genetic disorders that cause tumors to grow along types of
nerves and, in addition, can affect the development of non-nervous tissues such
as bones and skin. The tumors can grow anywhere on or in the body.
Neuroleptic
Malignant Syndrome - (NMS) is a
life-threatening, neurological disorder most often caused by an adverse
reaction to neuroleptic or antipsychotic drugs. It generally presents with
muscle rigidity, fever, autonomic instability and cognitive changes such as
delirium, and is proven on a raised creatine phosphokinase (CPK). Treatment is
generally supportive.
Neurological
Complications of AIDS - AIDS is primarily
an immune system disorder caused by the human immunodeficiency virus (HIV), but
it can also affect the nervous system. HIV does not appear to directly invade
nerve cells but it jeopardizes their health and function, causing symptoms such
as confusion, forgetfulness, behavioral changes, severe headaches, progressive
weakness, loss of sensation in the arms and legs, stroke, cognitive motor
impairment, or damage to the peripheral nerves. Other complications that can
occur as a result of HIV infection or the drugs used to treat it include pain,
seizures, shingles, spinal cord problems, lack of coordination, difficult or
painful swallowing, anxiety disorder, depression, fever, vision loss, gait
disorders, destruction of brain tissue, and coma.
Neurological
Complications Of Lyme Disease - Lyme
disease is caused by a bacterial organism that is transmitted to humans via the
bite of an infected tick. Most people bitten by an infected tick develop a
characteristic skin rash around the area of the bite. The rash may feel hot to
the touch, and vary in size, shape, and color, but it will often have a
"bull's eye" appearance (a red ring with a clear center). However,
there are those who will not develop the rash, which makes Lyme disease hard to
diagnose because its symptoms and signs mimic those of many other diseases.
Neurological
Consequences of Cytomegalovirus Infection
- CMV is in the same family of viruses that includes herpes simplex types 1 and
2, and the viruses that cause infectious mononucleosis (EBV), chickenpox, and
shingles. A hallmark of CMV is the reappearance of symptoms throughout life, as
the virus cycles through periods of dormancy and active infection.
Neurological
Manifestations of Pompe Disease - Pompe
disease is a rare inherited and often fatal disorder that disables the heart
and muscles. It is caused by mutations in a gene that makes an enzyme called
alpha-glucosidase (GAA). Normally, the body uses GAA to break down glycogen, a stored
form of sugar used for energy. But in Pompe disease, mutations in the GAA gene
reduce or completely eliminate this essential enzyme. Excessive amounts of
glycogen accumulate everywhere in the body, but the cells of the heart and
skeletal muscles are the most seriously affected.
Neurological
Sequelae Of Lupus - is a disorder of the
immune system. Normally, the immune system protects the body against invading
infections and cancers. In lupus, the immune system is over-active and produces
increased amounts of abnormal antibodies that attack the body's tissues and
organs. Lupus can affect many parts of the body, including the joints, skin,
kidneys, lungs, heart, nervous system, and blood vessels.
Neuromyelitis Optica
or Devic's disease - an autoimmune, inflammatory
disorder in which a person's own immune system attacks the optic nerves and
spinal cord. This produces an inflammation of the optic nerve (optic neuritis)
and the spinal cord (myelitis). Although inflammation may also affect the
brain, the lesions are different to those observed in the related condition
multiple sclerosis. Spinal cord lesions lead to varying degrees of weakness or
paralysis in the legs or arms, loss of sensation, and/or bladder and bowel
dysfunction. Devic's disease is a rare disorder which resembles multiple
sclerosis (MS) in several ways.
Neuromyotonia - also known as Isaacs' Syndrome, is spontaneous muscular
activity resulting from repetitive motor unit action potentials of peripheral
origin.
Neuronal Ceroid
Lipofuscinosis - (NCL, also known as
Batten Disease) is the general name for a family of at least eight genetically
separate neurodegenerative disorders that result from excessive accumlation of
lipopigments (lipofuscin) in the body's tissues. These lipopigments are made up
of fats and proteins. Their name comes from the technical word lipo, which is
short for "lipid" or fat, and from the term pigment, used because
they take on a greenish-yellow color when viewed under an ultraviolet light
microscope. The lipopigments build up in cells of the brain and the eye as well
as in skin, muscle, and many other tissues.
Neuronal Migration
Disorders - (NMDs) are a group of birth
defects caused by the abnormal migration of neurons in the developing brain and
nervous system.
Neuropathy -
Hereditary - a group of inherited
disorders of the peripheral nervous system. Within the group there are 4
subcategories of disorders, including hereditary motor and sensory neuropathy,
hereditary sensory neuropathy, hereditary motor neuropathy, and hereditary
sensory and autonomic neuropathy. Symptoms of these disorders vary and may
include numbness and tingling in the feet and hands, muscle weakness
(especially in the distal muscles), scoliosis, thin lower legs, foot
deformities, insensitivity to pain, and autonomic symptoms such as impaired
sweating, postural hypotension, and skin blotching.
Neurosarcoidosis - refers to sarcoidosis, a condition of unknown cause
featuring granulomas in various tissues, involving the central nervous system
(brain and spinal cord). It can have many manifestations, but abnormalities of
the cranial nerves (a group of twelve nerves supplying the head and neck area)
are the most common. It may develop acutely, subacutely, and chronically.
Neurotoxicity - occurs when the exposure to natural or manmade toxic
substances, which are called neurotoxins, alters the normal activity of the
nervous system. This can eventually disrupt or even kill neurons, key cells
that transmit and process signals in the brain and other parts of the nervous
system. Neurotoxicity can result from exposure to substances used in
chemotherapy, radiation treatment, drug therapies and organ transplants, as
well as exposure to heavy metals such as lead and mercury, certain foods and
food additives, pesticides, industrial and/or cleaning solvents, cosmetics, and
some naturally occurring substances.
Nevus Cavernosus -
or cavernous angioma, vascular
malformation composed of sinusoidal vessels without a large feeding artery; can
be multiple, especially if inherited as an autosomal-dominant trait.
Niemann-Pick Disease - an autosomal recessive disorder affecting lipid
metabolism (the breakdown and use of fats and cholesterol in the body), in a
way which causes harmful amounts of lipids to accumulate in the spleen, liver,
lungs, bone marrow, and brain.
Normal Pressure
Hydrocephalus - (NPH) is an abnormal
increase of cerebrospinal fluid (CSF) in the brain's ventricles, or cavities.
It occurs if the normal flow of CSF throughout the brain and spinal cord is
blocked in some way. This causes the ventricles to enlarge, putting pressure on
the brain.
MotorDisabilities
Motor disabilities are disabilities that effect a person's ability to learn motor tasks moving and manipulating objects) such as walking, running, skipping, tying shoes, crawling, sitting, handwriting, and others. To be considered a disability, the problem must cause a person to have motor coordination that is significantly below what would be expected for his or her age, and the problem must interfere with the activities of learning and daily living. Cerebral palsy is a motor disability.
Motor disabilities are disabilities that effect a person's ability to learn motor tasks moving and manipulating objects) such as walking, running, skipping, tying shoes, crawling, sitting, handwriting, and others. To be considered a disability, the problem must cause a person to have motor coordination that is significantly below what would be expected for his or her age, and the problem must interfere with the activities of learning and daily living. Cerebral palsy is a motor disability.
Motor
disability
Motor disability may result from:
·
invalidating diseases (polio, turbecolosis,
etc.)
·
accidents (war injuries, road accidents, etc.)
·
complications during birth (cerebral palsy,
etc.)
·
genetic/congenital problems.
What do I
need to know?
·
Motor disability may be the sum of diverse
impairments on a mental, sensorial and physical level.
·
Medical, technical and human assistance can
reduce the impact of the disability to a minimum.
·
A person with a motor disability needs more
power and concentration in order to control the movements of her/his body, as a
result s/he might be exhausted sooner than other group members 3).
What
should be avoided?
·
People with diffuse neuro-muscular symptoms
should not regularly participate in training as long as multiple sclerosis
cannot be excluded as a diagnosis.
·
Overstraining people with motor disability may
cause pain and suffering and it may take several days for the muscles to
recover. Too much stress may cause spasms.
·
It is important to compensate the high loss of
fluids caused by perspiration. A healthy person may recover better than someone
whose physical strength is continually challenged by overcoming difficulties in
motor movements in every day activities.
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