The purpose of reading is to construct meaning from written text, to gain information. Reading involves more than simply deciphering words. It includes figuring out the relationship between the approximately forty-four spoken sounds (phonemes) of the English language with the twenty-six letters of the alphabet, and there are over 150 different ways to spell all those phonemes! One missed connection in the brain can lead to a complete misunderstanding of the text at hand and a very frustrated child who is learning to read.
Readers construct meaning from two major sources: words and passages, otherwise known as strings of words. Proficient readers are fluent readers in that they can obtain meaning by reading the text rapidly, effortlessly, and most times unconsciously (called automaticity). Readers need to recognize every word as fast as possible with the least amount of effort so that they can use their energy for the more demanding task of reading: figuring out the overall meaning. Research has indicated that word recognition difficulty, or decoding, is the root of most reading problems.
Decoding is the process of converting printed word into its spoken form. This leads to word recognitions where the reader connects the decoded word to its meaning, known as word recognition. When the reader can automatically do this while reading a string of words in a passage, the result is comprehension of the entire text.
The Connecticut Longitudinal Study indicates that the decoding ability of a child in the first grade continues to be a major factor in comprehension throughout the elementary years.“In first grade, the ability to decode words accurately correlates .89, or 80%, with comprehension. By the fourth grade, how well a student learned to decode in the first grade correlates .64, or about 40%, with comprehension. In the ninth grade, the correlation between first grade decoding ability and comprehension is .52, or about 27%.”
It is evident that a child’s ability and skill in decoding while in the young elementary grades have an impact on their reading success throughout their school career.
It used to be thought that good readers skimmed, skipped, and sampled text to construct meaning, but research now indicates quite the opposite is true. Research done by Kolers in Eye Movements and Psychological Processes demonstrate that, for proficient readers, the eye lights on almost every single letter in a word, totaling about one quarter of a second before jumping to the next word. Here is an example:
The American flag is rid, white and blue.
Did you notice every letter and thus gain a full comprehension of the sentence? Many words in the English language are only distinguished from another word by one letter, such as the words fat and cat, or even more difficult, sat and sit. Failure to fully recognize and process every single letter in a word may result in incorrect of slow recognition of the word.
According to researchers at the Center for Learning and Attention at Yale University, the brain reads by breaking words into sounds. Three different parts of the brain must be activated in the correct order to decode properly. Once the eye notices the individual letters in a word, c-a-t (called the letter identification processor), it connects those letters to the phonological processor. This is where the brain associates the letters with specific sounds, /k/ /a/ /t/. After the letters and sounds have been bundled together it connects to the brain’s meaning processor, where the concept of the word is identified, a small furry animal that meows. This is a lot of activity that takes place in the brain, and not all in one spot, either, as the different processors are located in the left, back and front of the brain.
When the brain stumbles upon a new word, it must be thoroughly decoded. As the brain is re-exposed to that same word, and read over and over again through multiple readings, the neural connections (remember the three processors) become faster and stronger until recognition is automatic. Some readers may need exposure to the same word fifty to one hundred times before complete storage can be possible. Partial storage of only the first letter, or the letters without sounds, doesn’t give the brain enough information to store and retrieve that word effectively, thus slowing down the reading process and compromising comprehension.
The brain relies on patterns to store and access the complicated task of reading and developing meaning. Memorizing words is inefficient. Memorizing spelling patterns without connecting to sounds is ineffective. Combining information about a word, like its sounds and letters, are needed for the brain to find the exact meaning. When readers begin to recognize large numbers of words automatically and accurately, comprehension improves. Thus, full decoding is crucial to complete comprehension.
For further reading:Core Reading Sourcebook by Bill Hoing, Linda Diamond, and Linda Gutlohn How Children Learn to Read and Why They Fail by Philip B. Gough Understanding Children: Learning to Read and Write by Iowa State University