| Categorizing types of dyslexia into clearly defined sets | | | | The eyes will send incomplete information to the visual |
| and subsets is difficult. Dyslexia is a condition that is | | | | center of the brain. This visual misinformation is then |
| very much individualized in its severity and symptoms. | | | | wrongly translated by the brain. This can lead to |
| To further complicate a clean-cut diagnosis, dyslexia | | | | problems with reading and writing. |
| can be accompanied by other conditions such as | | | | Phonological dyslexia-or auditory dyslexia-is the hearing |
| ADHD. Listed below are categories of dyslexia. The | | | | version of visual dyslexia in many ways. However a |
| reader should remember that having one of these | | | | more serious condition called Processing Disorder may |
| types of dyslexia does not mean other types of | | | | exist. This type of dyslexia makes it hard for the |
| issues might not be present as well. | | | | person to understand sounds, particularly words. |
| Primary dyslexia is a type of dyslexia that is used to | | | | Sentences may be jumbled and hard to understand. |
| describe a dysfunction of the left side of the brain. | | | | Dyspraxia relates to difficulty with motor integration. |
| People who have this type of dyslexia will struggle | | | | The child will have coordination problems and will often |
| with reading, spelling, and writing, in various degrees, | | | | be considered as being "just clumsy." Sufferers might |
| through adulthood. Primary dyslexia has been | | | | also have problems with coordinated thought, language, |
| determined to be hereditary. This condition appears to | | | | and perception. Sometimes a child might outgrow this. |
| be more prevalent in boys. | | | | Dysgraphia is one of the types of dyslexia that has a |
| Secondary dyslexia, or "developmental dyslexia," is | | | | very significant effect on education. This type of |
| thought to be caused by hormonal development of the | | | | dyslexia refers an immaturity in fine motor skills that |
| fetus during pregnancy. This type of dyslexia is thought | | | | makes holding a pencil and writing difficult. Often the |
| to be highly treatable and has a good possibility of | | | | student's handwriting will be illegible. Over time, with help |
| lessening and even going away as the child grows. | | | | and training, improvement can be made. |
| Again, it is more common in boys. | | | | Probably the least known types of dyslexia is |
| One of the more rare types of dyslexia is trauma | | | | dyscalculia-or number dyslexia. People with dyscalculia |
| dyslexia. This usually occurs after some form of brain | | | | will have problems performing simple math functions |
| injury. This was in fact the original symptom that led to | | | | and grasping abstract math concepts. Often, people |
| dyslexic research being started back in the 1860s. It is | | | | with dyscalculia will have difficulties with time, |
| still seen today, but mostly in adults who have suffered | | | | measurement, and spatial reasoning. Because it is the |
| severe brain trauma and is rarely present in children. | | | | least known of all the different types of dyslexia, it |
| It is important to realize that these are considered | | | | often goes unnoticed. |
| "causes" for the different types of dyslexia. Listed | | | | Hopefully this will give you a better understanding of |
| below are the symptoms, or types, brought on by the | | | | how most types of dyslexia are categorized. Different |
| above causes. | | | | types of dyslexia will have different effects on the |
| Visual dyslexia is the result of immature development | | | | sufferer. While there are innumerable variations of |
| of the vision process. This could be, in part, that the | | | | dyslexia in varying degrees, it is a good idea to have a |
| eyes are not completely developed or have a defect. | | | | working knowledge of the basics. |