(Also known as Dysphoneidetic dyslexia). This term refers to a combination of phonological and visual dyslexia.
Not surprisingly, people with mixed dyslexias have severe defecits in reading as well as cognitive functions such as visual motor integration, visual perception and working memory.
Working /Short Term Memory
Working memory or short term memory, affects all types of dyslexia and assessors will tend use poor memory as an indicator of dyslexia. This is more difficult to assume when examining people in later life because of possible confusion caused by early-onset of Dementia, CJD and Alzheimer's Disease.
If you examine the arguments surrounding this perception, you will find that people with dyslexia may spend a great deal of time and effort engaging with their 'working memory'. This is thought to be because they cannot recall words, phrases and sentences from their long term memory.
They are expending a lot of time and effort building words from letters and trying to make sense of them in their 'working memory' and frontal lobes. This requires greater levels of consciousness and reduces the capacity for short term recall of other recent memories.
There is also an underlying level of fatigue that all dyslexic people experience, partly because of the high level of concentration required to sustain their coping mechanisms and partly because of their undergoing greater brain activity.
Recent scientific MRI research (American Journal of Neuroradiology) reveals that their brain activity is 5 time greater than non-dyslexic people, performing the same reading /writing tasks.
This clearly has a draining effect on the body's resources and the ability of the brain to function as expected. Can we really expect to get the best from people who are unfairly burdened by their different perspective