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Brain waves show learning to read does not end in 4th grade, contrary to popular theory
Date:7/20/2014

subjects' brains reacted to each kind of stimulus within milliseconds. In other words, she could watch their automatic word processing.

Next, Coch gave the participants a written test, in which they were asked to circle the real words in a list that also contained pseudo-words, strings of letters, and strings of meaningless symbols. This task was designed to test the participants' conscious word processing, a much slower procedure.

Interestingly, most of the 96 participants got a nearly perfect score on the written test, showing that their conscious brains knew the difference between words and non-words.

However, the electrode cap revealed that only the college students processed meaningless symbols differently than real words. The third-, fourth-, and fifth-graders' brains reacted to the meaningless symbols the same way they reacted to common English words.

"This tells us that, at least through the fifth grade, even children who read well are letting stimuli into the neural word processing system that more mature readers do not," Coch said. "Their brains are processing strings of meaningless symbols as if they were words, perhaps in case they turn out to be real letters. In contrast, by college, students have learned not to process strings of meaningless symbols as words, saving their brains precious time and energy."

The phenomenon is evidence that young readers do not fully develop automatic word processing skills until after fifth grade, which contradicts the fourth-grade reading shift theory.

The brain waves also showed that the third-, fourth-, and fifth-graders processed real words, psuedowords, and letter strings similarly to college students, suggesting that some automatic word processing begins before the fourth grade, and even before the third grade, also contradicting the reading shift theory.

"There is value to the theory of the fourth grade shift in that it highlights how reading skills a
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Contact: Shea Drefs
shea.m.drefs@dartmouth.edu
603-646-2255
Dartmouth College
Source:Eurekalert

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