Dyslexia is a form of Receptive Aphasia
Problems in recognizing words (heard, seen or felt) is called receptive aphasia.
In the visual modality, receptive aphasia has another name--dyslexia. An inability to retrieve the meaning of written symbols.
Dyslexia is often accompanied with a visual perceptual processing problem. This is an inability to organize visual stimuli.
It is possible to have, however, a perceptual disability without the accompanying dyslexia.
An inability to retrieve concepts results in agnosia. The impact of this process failure may be as follows:
In the auditory modality we may not recognize familiar sounds we hear;
- In the visual modality, we may not recognize ordinary things we see;
- And in the haptic modality, we may not recognize familiar items we touch or grasp.