Speech disorders can affect the way a person creates sounds to form words. Certain voice disorders may also be considered speech disorders.
One of the most commonly experienced speech disorders is stuttering. Other speech disorders include apraxia and dysarthria.
- Apraxia is a motor speech disorder caused by damage to the parts of the brain related to speaking.
- Dysarthria is a motor speech disorder in which the muscles of the mouth, face, or respiratory system may become weak or have difficulty moving.
Speech disorders can affect adults and children. Early treatment can correct these conditions.
Speech disorders affect the vocal cords, muscles, nerves, and other structures within the throat.
Causes may include:
- vocal cord damage
- brain damage
- muscle weakness
- respiratory weakness
- polyps or nodules on the vocal cords
- vocal cord paralysis
People who have certain medical or developmental conditions may also have speech disorders. Common conditions that can lead to speech disorders are:
- attention deficit hyperactivity disorder (ADHD)
- oral cancer
- laryngeal cancer
- Huntington’s disease
- amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig’s disease
Speech disorders may be hereditary, and they can develop over time.
Depending on the cause of the speech disorder, several symptoms may be present. Common symptoms experienced by people with speech disorders are:
- repeating sounds, which is most often seen in people who stutter
- adding extra sounds and words
- elongating words
- making jerky movements while talking, usually involving the head
- blinking several times while talking
- visible frustration when trying to communicate
- taking frequent pauses when talking
- distorting sounds when talking
- hoarseness, or speaking with a raspy or gravelly sounding voice
Many tests are available to diagnose speech disorders.
Denver articulation screening exam
The Denver articulation screening examination (DASE) is a commonly used testing system to diagnose articulation disorders. This test evaluates the clarity in pronunciation in children between the ages of 2 and 7. This five-minute test uses various exercises to assess the child’s speech.
Early language milestones scale 2
This test, created by neurodevelopmental pediatrician James Coplan, determines a child’s language development. This test can quickly identify delayed speech or language disorders.
Peabody picture vocabulary test, revised
This test measures a person’s vocabulary and ability to speak. The person will listen to various words and choose pictures that describe the words. People who have severe intellectual disabilities and those who are blind won’t able to take this assessment. The Peabody picture vocabulary test has been revised many times since its first version was administered in 1959.
Mild speech disorders may not require any treatment. Some speech disorders may simply go away. Others can improve with speech therapy.
Treatment varies and depends on the type of disorder. In speech therapy, a professional therapist will guide you through exercises that work to strengthen the muscles in your face and throat. You’ll learn to control your breathing while speaking. Muscle-strengthening exercises and controlled breathing help improve the way your words sound. You’ll also learn ways to practice smoother, more fluent speech.
Some people with speech disorders experience nervousness, embarrassment, or depression. Talk therapy may be helpful in these situations. A therapist will discuss ways to cope with the condition and ways to improve the outlook of your condition. If your depression is severe, antidepressant medications can help.
Untreated speech disorders may cause a person to experience a great deal of anxiety. Over time, this anxiety can trigger anxiety disorders or a phobia of speaking in public. Early treatment for anxiety can help prevent the development of anxiety disorders or phobias. Treatment options include talk therapy and antianxiety medications.
The outlook improves for people who seek early treatment. Early treatment helps prevent a speech disorder from worsening. The outlook for those with permanent disabilities depends upon the severity of the disability.