Speech disorder or sleep impairment or dysphonia is a communication disorder where a person is unable to or finds difficulty in producing sound. The condition may include stuttering, lisps or loss of ability to produce sound totally which is considered mute. It occurs because of inability to use words in appropriate context.
Factors responsible for speech disorder
Most of the time, the causes of this problem remain unnoticed. However, neurologists have found some factors which may include:
- Mental Illness
- Brain Injury
- Neurological speech disorder
- Alcohol or drug abuse
- Hearing impairment
Various kinds of Speech Disorder
- Spasmodic Dysphonia: This is the disorder where the muscles of the voice box move reluctantly.
- Adductor spasmodic dysphonia : In this, the vocal cords close unwillingly resulting into stammering.
- Abductor spasmodic dysphonia : It’s just the opposite of Adductor spasmodic dysphonia but with the same problem. In this, the vocal cords open involuntarily leading to feeble voice.
- Mixed spasmodic dysphonia : It’s the blend of above two. The vocal cords open and close unwillingly resulting in an individual stammer with a weak voice.
- Aphasia: It is also known as Dysphasia which occurs due to damage to the communication centre in the brain. It varies from person to person. Issues arise when a person writes, listens or converses. It can be cured if detected early by a neurologist.
- Apraxia: Apraxia is also one of the sleep disorders caused due to an injury to the brain. Patients affected by this disease are those who usually are unable to express themselves rightly.
- Developmental apraxia : It is common in small children, normally from birth. The sternness varies according to the individuals.
- Acquired apraxia : It is common in adults and results from a physical injury to the brain.
- Dysarthria : It is usually known as garbled speech. The speech is weak, slow and erroneous. Stroke, multiple sclerosis or brain tumour are responsible for dysarthria.