What is Tourette Syndrome?
Tourette Syndrome (TS) is a neurological disorder characterized by vocal and motor tics — involuntary, rapid, sudden movements or vocalizations that occur repeatedly in the same way. The symptoms include:
Both multiple motor and one or more vocal tics present at some time although not necessarily simultaneously;
The occurrence of tics many times a day (usually in bouts) nearly every day or intermittently throughout a span of more than one year; and
Periodic changes in the number, frequency, type and location of the tics, and waxing and waning of their severity. Symptoms can sometimes disappear for weeks or months at a time.
The term, “involuntary,” used to describe TS tics is sometimes confusing since it is known that most people with TS do have some control over their symptoms. What is not recognized is that the control, which can be exercised anywhere from seconds to hours at a time, may merely postpone more severe outbursts of symptoms. Tics are experienced as irresistible and (as with the urge to sneeze) eventually must be expressed. People with TS often seek a secluded place to release their symptoms after delaying them in school or at work. Typically, tics increase as a result of tension or stress, and decrease with relaxation or when focusing on an absorbing task.
How would a typical case of TS be described?
The term typical cannot be applied to TS. The expression of symptoms covers a spectrum from very mild to quite severe. However, the majority of cases can be categorized as mild.
Is obscene language (coprolalia) a typical symptom of TS?
Definitely not. The fact is that cursing, uttering obscenities, and ethnic slurs are manifested by fewer than 15% of people with TS. Too often, however, the media seize upon this symptom for its sensational effect. Because milder cases are being diagnosed, the relative incidence of coprolalia will probably decrease.
What causes the symptoms?
The cause has not been established, although current research presents considerable evidence that the disorder stems from the abnormal activity of at least one brain chemical (neurotransmitter) called dopamine. There may be abnormal activity of the receptor for this chemical as well. Undoubtedly, other neurotransmitters, e.g. serotonin, may be involved as well.
How is TS diagnosed?
A diagnosis is made by observing symptoms and by evaluating the history of their onset. No blood analysis or other type of neurological testing currently exists to diagnose TS. However, some physicians may wish to order an EEG, MRI, CAT scan, or certain blood tests to rule out other ailments that might be confused with TS. Rating scales are available for assessment of tic severity.
What are the first symptoms?
The most common first symptom is a facial tic such as rapidly blinking eyes or twitches of the mouth. Involuntary sounds such as throat clearing and sniffing, or tics of the limbs may be initial signs. For a minority, the disorder begins abruptly with multiple symptoms of movements and sounds.
How are tics classified?
While tics can manifest as any sound or movement, and any combination thereof, there are two categories of tics, motor and vocal.Common examples of motor tics include eye blinking, head jerking, shoulder shrugging and facial grimacing. Common examples of vocal tics include throat clearing, yelping and other vocalizations, sniffing, and tongue clicking.
Some examples of complex tics are jumping, touching other people or things, sniffing/smelling, twirling about, and only rarely, self-injurious actions including hitting or biting oneself. One type of vocal tic is the vocalizing socially unacceptable words (coprolalia).The range of tics or tic-like symptoms that can be seen in TS is very broad. The complexity of some symptoms is often perplexing to family members, friends, teachers co-workers, and employers who may find it hard to believe that the actions or vocal utterances are involuntary.
How is TS treated?
The majority of people with TS are not significantly disabled by their tics or behavioral symptoms, and therefore do not require medication. However, there are medications available to help control the symptoms when they interfere with functioning. TS is often diagnosed as a “co-morbid” condition alongside other neurological conditions such as obsessive compulsive disorder (OCD), anxiety, ADHD, and depression. There are many medications available that can be prescribed for TS and these associated conditions, under the guidance of a qualified medical professional.
Outside of medicines, there are also other types of therapies that may also be helpful. Psychotherapy and counseling can assist a person with TS and help his/her family cope with the stress that sometimes is present. Also, there are some well documented cognitive-behavioral approaches that can teach the substitution of one tic for another that is more acceptable (Cognitive Behavioral Intervention for Tics – “CBIT”). Finally, the use of general relaxation techniques, mindfulness training, and/or biofeedback may serve to alleviate stress reactions that can cause tics to increase.
Is it important to treat Tourette Syndrome early?
Yes, especially in those instances when the symptoms are viewed by some people as bizarre, disruptive and frightening. It is also important to consider therapy when the child is concerned over her/his acceptance to peers. Sometimes TS symptoms provoke ridicule and rejection by peers, neighbors, teachers and even casual observers. Parents may be overwhelmed by the strangeness of their child’s behavior.
The child may be threatened, excluded from activities and prevented from enjoying normal interpersonal relationships. These difficulties may become greater during adolescence — an especially trying period for young people and even more so for a person coping with a neurological imbalance. To avoid psychological harm, early diagnosis and treatment are crucial. Moreover, in more serious cases, it is possible to control many of the symptoms with medication.
Do all people with TS have associated behaviors in addition to tics?
No, but many do have one or more additional problems which may include:Obsessions which consist of repetitive thoughts which can become unwanted or bothersome. Compulsions and Ritualistic Behaviors which occur when a person feels that something must be done over and over and/or in a certain way. Examples include touching an object with one hand after touching it with the other hand to “even things up” or repeatedly checking to see that the flame on the stove is turned off.
Children sometimes beg their parents to repeat a sentence many times until it “sounds right.” Repetitive copying and erasing of work in school can be quite disabling. Attention Deficit Disorder with or without Hyperactivity(ADD or ADHD) occurs in many people with TS. Children may show signs of hyperactivity before TS symptoms appear. Indications of ADHD may include: difficulty with concentration; failing to finish what is started; not listening; being easily distracted; often acting before thinking; shifting constantly from one activity to another; needing a great deal of supervision; and general fidgeting. Adults too may exhibit signs of ADHD such as overly impulsive behavior and concentration difficulties and the need to move constantly.
ADD without hyperactivity includes all of the above symptoms except for the high level of activity. As children with ADHD mature, the need to move is more likely to be expressed by restless, fidgety behavior. Difficulties with concentration and poor impulse control may persist.Learning Disabilities may include reading and writing difficulties, problems with mathematics, and perceptual problems.Difficulties with impulse control which may result, in rare instances, in overly aggressive behaviors or socially inappropriate acts.
Also, defiant and angry behaviors can occur. Sleep disorders are fairly common among people with TS. These include difficulty getting to sleep, frequent awakenings or walking or talking in one’s sleep.
Do students with TS have special educational needs?
While school children with TS as a group generally have the same IQ range as the population at large, many have special educational needs. Data show that many may have some kind of learning problem. That condition, combined with attention deficits and the difficulty coping with frequent tics, often call for special educational assistance. The use of tape recorders or computers for reading and writing problems, un-timed exams (in a private room if vocal tics are a problem), and permission to leave the classroom when tics become overwhelming are often helpful.
Some children need extra help such as access to tutoring in a resource room. When difficulties in school cannot be resolved, an educational evaluation may be indicated. A resulting identification as “other health impaired” under federal law will entitle the student to an Individual Education Plan (IEP) which addresses specific educational problems in school. Such an approach can significantly reduce the learning difficulties that prevent the young person from performing at his/her potential. The child who cannot be adequately educated in a public school with special services geared to his/her individual needs may be best served by enrollment in a special school or home schooled.
Is TS inherited?
Recent studies indicate that TS is 77% inheritable.
Is there ever a remission?
Many people experience marked improvement in their late teens or early twenties. Most people with TS get better, not worse, as they mature, and those diagnosed with TS have a normal life span. As many as 1/3 of patients experience remission of tic symptoms in adulthood.
How many people in the U.S. have TS?
Since many people with TS have yet to be diagnosed, there are no absolute figures. The official estimate by the National Institutes of Health is that 100,000 Americans have full-blown TS. Some genetic studies suggest that the figure may be as high as one in two hundred if those with chronic multiple tics and/or transient childhood tics are included in the count.
What is the history of TS?
In 1825 the first case of TS was reported in medical literature with a description of the Marquise de Dampierre, a noblewoman whose symptoms included involuntary tics of many parts of her body and various vocalizations including coprolalia and echolalia. Later, Dr. Georges Gilles de la Tourette, the French neurologist for whom the disorder is named, first described nine cases in 1885. Samuel Johnson, the lexicographer, and Andre Malraux, the French author, are among the famous people who are thought to have had TS.
What is the current focus of research?
Since 1984, the Tourette Association of America (TAA) has directly funded important research investigations in a number of scientific areas relevant to TS. Recently, studies have intensified to understand how the disorder is transmitted from one generation to the next, and researchers are working toward locating the gene marker for TS.
That focus has been enhanced by the efforts of a TAA-supported international group of scientists who have formed a unique network to share what they know about the genetics of TS and to systematically cooperate to unravel the unknown. Additional insights are being obtained from studies of large families (kindreds) with numerous members who have TS. At the same time, investigators continue to study specific groups of brain chemicals to better understand the syndrome and to identify new and improved medications.
What type of services for families exist?
Local TAA affiliates and support groups allow families to exchange ideas and feelings about their common problems. Often family therapy is helpful. Parents of a child with TS have to walk a fine line between understanding and overprotection. They are constantly faced with deciding whether or not certain actions are the expression of TS or just poor behavior.
Parents then must determine the appropriate response. For socially unacceptable behavior, a child should be encouraged to control what he/she can whenever possible, and try to substitute what is more socially acceptable. Parents are urged to give their children with TS the opportunity for as much independence as possible, while gently but firmly limiting attempts by some children to use their symptoms to control those around them.
What is the Tourette Syndrome Association?
The Tourette Association of America, founded in 1972, is the only national voluntary non-profit membership organization dedicated to:
Identifying the cause;
Finding the cure; and
Controlling the effects of TS.
Members include individuals with the disorder, their relatives and other interested, concerned people. The Association develops and disseminates educational material to individuals, professionals and to agencies in the fields of health care, education and government; coordinates support services to help people and their families cope with the problems that occur with TS; funds research that will ultimately find the cause of and cure for TS and, at the same time, lead to improved medications and treatments.TAA also:
Offers direct help to TS families in crisis situations through its Information and Referral Service
Organizes workshops and symposiums for scientists, clinicians and others working in the field of TS
Promotes public awareness and understanding
Develops and maintains state-by-state lists of doctors who can diagnose and treat TS, as well as medical referrals in other countries; lists of allied professionals (psychologists, social workers) by state; ABA lists of pro-bono attorneys by state; advocate lists by state; and lists of health insurance resources by state.
Sponsors the Tourette Syndrome Brain Bank Program involving collection of sorely needed tissue for scientific research
Serves many thousands of members throughout the USA and abroad
Increases the knowledge and sensitivity of health care professionals to TS through exhibits at conferences, the dissemination of literature and the organization of national meetings
Organizes and assists local chapters and support groups throughout the US and around the world.
Represents the interests of members to the government on critical policy issues including orphan drugs, health insurance and employment.