Showing posts with label sensory organ. Show all posts
Showing posts with label sensory organ. Show all posts

Friday, 15 November 2013

Brain wiring

What is dyslexia? The word is based on two Greek words-“dys” meaning difficulty, and “lexic” meaning anything to do with words.

According to the World Federation of Neurology, “Dyslexia is a disorder manifested by difficulties in learning to read, despite conventional instruction, adequate intelligence and socio-cultural opportunities.”

It has been found that 20% of school-going children have several difficulties in learning to read and write, out of which 14% to 17% have a learning disability (LD). But 3% to 6% are dyslexic. It is a fairly rare disorder. It is a neurological condition and there is no known cause or cure for dyslexia till now. 


Dyslexia is a specific reading disability due to a defect in the brain's processing. The brain has two important areas-the cerebrum and the cerebellum. The cerebrum receives and processes stimuli from the outer environment with the help of sensory organs, and the cerebellum takes care of body control and movements and makes it possible to connect the body’s responses effectively with the outside environment. When this connection is delayed, or when the neural pathways are incomplete, it creates a condition known as “cerebellar delay”, which causes dyslexia.