DYSARTHRIA
WHAT IS DYSARTHRIA? Speech production is a complex process involving the co-ordinated contraction of a large number of muscles controlled by the nerve impulses originating in the motor areas of cerebral cortex. The organs that are involved in speech production are the lips, the tongue, the vocal folds and the diaphragm. When these organs don’t function efficiently, the speech tends to be unclear. One such condition which results owing to the malfunctioning of the speech organs is Dysarthria. Dysarthria can be defined as ‘an impairment in the movement of the muscles of the organs that are concerned with speech production. This is because, the part of the brain that controls these organ movements do not work effectively.’ It is …show more content…
Stroke
2. Brain tumor
3. Cerebral Palsy
4. Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig’s disease)
5. Multiple Sclerosis
6. Parkinson’s disease
7. Muscular Dystrophy
8. Huntington’s …show more content…
FLACCID DYSARTHRIA
Flaccid Dysarthria is caused due to impairment of lower motor neurons. The conditions that cause Flaccid Dysarthria are physical trauma, brain stroke, tumors, myasthenia gravis, polio and viral or bacterial infections. Damage to the cranial nerves paralyses only one vocal fold. Thus the resultant speech is harsh and breathy and reduced in volume. Hypernasality and monopitch are other characteristics.
2. SPASTIC DYSARTHRIA Spastic dysarthria is associated with damage to the upper motor neurons. The upper motor neurons convey nerve impulses from the motor areas of the cerebral cortex to the lower motor neurons. Lesions of upper motor neurons that can cause dysarthria are located in the cerebral cortex, the internal capsule and the brain stem. The characteristic features of this type of dysarthria are harsh, strained or strangled voice which usually low pitched. Articulation problems like range of movement, tongue strength, speech rate and voice onset time for stops are reduced are other features.
3. HYPERKINETIC DYSARTHRIA This is due to lesions in basal ganglia. The symptoms are involuntary movements, harsh and strained voice. Hypernasality is another common feature.
4. HYPOKINETIC
WHAT IS DYSARTHRIA? Speech production is a complex process involving the co-ordinated contraction of a large number of muscles controlled by the nerve impulses originating in the motor areas of cerebral cortex. The organs that are involved in speech production are the lips, the tongue, the vocal folds and the diaphragm. When these organs don’t function efficiently, the speech tends to be unclear. One such condition which results owing to the malfunctioning of the speech organs is Dysarthria. Dysarthria can be defined as ‘an impairment in the movement of the muscles of the organs that are concerned with speech production. This is because, the part of the brain that controls these organ movements do not work effectively.’ It is …show more content…
Stroke
2. Brain tumor
3. Cerebral Palsy
4. Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig’s disease)
5. Multiple Sclerosis
6. Parkinson’s disease
7. Muscular Dystrophy
8. Huntington’s …show more content…
FLACCID DYSARTHRIA
Flaccid Dysarthria is caused due to impairment of lower motor neurons. The conditions that cause Flaccid Dysarthria are physical trauma, brain stroke, tumors, myasthenia gravis, polio and viral or bacterial infections. Damage to the cranial nerves paralyses only one vocal fold. Thus the resultant speech is harsh and breathy and reduced in volume. Hypernasality and monopitch are other characteristics.
2. SPASTIC DYSARTHRIA Spastic dysarthria is associated with damage to the upper motor neurons. The upper motor neurons convey nerve impulses from the motor areas of the cerebral cortex to the lower motor neurons. Lesions of upper motor neurons that can cause dysarthria are located in the cerebral cortex, the internal capsule and the brain stem. The characteristic features of this type of dysarthria are harsh, strained or strangled voice which usually low pitched. Articulation problems like range of movement, tongue strength, speech rate and voice onset time for stops are reduced are other features.
3. HYPERKINETIC DYSARTHRIA This is due to lesions in basal ganglia. The symptoms are involuntary movements, harsh and strained voice. Hypernasality is another common feature.
4. HYPOKINETIC