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Language disorders stuttering types of stuttering developmental stuttering neurogenic stuttering psychogenic stuttering causes of stuttering symptoms of stuttering stuttering treatment stuttering therapy for child prevention of stuttering stammering

What causes stuttering?

Although the exact cause of stuttering is not known, there are three leading theories that propose how stuttering develops. The learning theory proposes that stuttering is a learned behavior and that most normal children are occasionally disfluent (i.e. speaking rapidly, searching for the right words, etc.) when at the age at which speech and language develop. If a child is criticized or punished for this, he or she may develop anxiety about the disfluencies, causing increased stuttering and

increased anxiety.

The second theory suggests that stuttering is a psychological problem-that stuttering is an underlying problem that can be treated with psychotherapy. The third theory proposes that the cause of stuttering is organic, that neurological differences exist between the brains of those who stutter and those who don't. Although the interference with speech is sometimes triggered by emotional or situational factors, stuttering is basically neurological and physiological – not psychological - in nature. In all other respects, persons who stutter are perfectly normal.

There is also some indication that genetic factors are involved in the development of stuttering and subsequent recovery, as shown by various studies done on families and twins. It is not known to what degree stuttering is dependent on genetic factors, on environmental factors, or on both. The most common type of stuttering (sometimes called developmental stuttering) usually develops of its own accord in childhood, most often between ages two and eight (although in rare cases it may begin much later). Roughly 4 to 5 per cent of people experience stuttering at some time during their childhood. While the majority become fluent by the time they reach adulthood, stuttering may continue to be a chronic, persistent problem for other stutterers. In short, stuttering is thought to be a physical disorder and is not thought to be caused by psychological factors such as nervousness or stress, or parenting practices or the way parents communicate with their children when they are young.

Stuttering tends to run in families, and it is generally accepted that this is because genetics is involved in the cause. However, the precise nature of the inheritance is unknown at present. Because stuttering occurs in families, speech researchers are inclined to say that stuttering has genetic roots. Recent advances in the field of human genetics allow scientists to identify the genes that cause any disorder which shows inheritance in families. The identification of "stuttering genes" is the subject of The Stuttering Family Research Project at the National Institutes of Health, a project which has identified over 350 families who can donate cheek samples to be analyzed for DNA. There is a small but growing pool of data which show that the brain shows certain focal abnormalities in persons who stutter. These abnormalities appear only when the individual is speaking and appear within the premotor, motor, and auditory association areas of the cerebral cortex. Neuropharmacological attempts to control stuttering have been developed, but side effects of such medications have been numerous and unpleasant.

More information on stuttering

What is stuttering? - Stuttering is a complex set of behaviours that may involve repeating sounds, syllables or words, prolonging sounds, blocking or hesitating, and avoiding or substituting words.
What types of stuttering are there? - There are several types of stuttering, including developmental stuttering, neurogenic stuttering, and psychogenic stuttering.
What is developmental stuttering? - Developmental stuttering generally occurs because a child's neurological system is not ready for all of the language that they are trying to say.
What is neurogenic stuttering? - Neurogenic stuttering is a signal problem between the brain and the nerves or muscles controlling speech. Neurogenic stuttering has repetitions, prolongations, and blocks.
What is psychogenic stuttering? - Psychogenic stuttering is originates in the area of the brain that directs thought and reasoning. Psychogenic stuttering is rare.
What causes stuttering? - Although the exact cause of stuttering is not known, there are three leading theories that propose how stuttering develops.
What're the symptoms of stuttering? - Symptoms of stuttering speech include repetition of sounds, prolongation , or stretching, of sounds or syllables, related behaviors.
What're the treatment for stuttering? - The goal of stuttering treatment is to focus on relearning how to speak, or to unlearn incorrect ways of speaking.
What's the stuttering therapy for child? - Treatment for stuttering is much more effective in childhood. Some children appear to recover from stuttering without any intervention.
How to prevent stuttering? - Locations of genes that predispose people to stuttering. Speech therapy can stop the progression of stuttering.
What is stammering? - Stammering is a communication disorder in which the normal flow of speech is broken by repetitions, prolongations, or abnormal stoppages of sounds and syllables.
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