Neurocircuitry of Reading - The "fancy,
scientific" explanation of reading
English is read from left to right. The visual
input (letters and words) are projected onto
the primary visual cortex of the right parietal
lobe. The information travels through the corpus
callosum to the left temporal lobe for phonemic
decoding to understand the grapheme(letters)/phoneme(sounds)
components. Auditory cues are used to decipher
language by way of the angular gyrus to the
supramarginal gyrus and eventually to the insular
cortex. It is the insular cortex that speeds
up the process to make this grapheme/phoneme
analysis and synthesis instantaneous. This leads
to immediate word recognition, travelling next
to segments of Broca's area by the articulate
fasciculus (white matter) acting as a bridge.
Broca's area completes the articulatory loop
and the word is read aloud or silently. Wernicke's
area helps the comprehension of the word.
If this sounds complicated, that's because it
is!! Everything our brain does is intricate and
pretty amazing!!
In addition, the brain functions of attention,
executive control and memory also impact our ability
to read. It certainly makes us aware of how amazing
our brains are!!
Learning to read follows a developmental pattern.
Pre-kindergarten to about grade 2 is a skill emergence
phase. The student is developing basic linguistic
and decoding skills. Phonemic awareness is an
essential component. Human beings are naturally
drawn to rhymthmic patterns and this is the beginning
of our phonological ability.
During grades 3 and 4, students are consolidating
their skills, with further acquisition of the
phonological code.
Grades 4 and 5 can al ost be seen as a transition.
Most students should have the phonological code
embedded and they now work on speed and efficiency
with an emphasis on comprehension and reciprocal
written language capabilities. (By the way, written
language is the most difficult cognitive task
we impose upon our brains).
Grades 6 through 8 continue to establish and
enhance skills, with higher level integration.
By high school, mastery over the skills should
occur and the student is increasing his or her
complex abstraction and concept formation abilities.
For middle school students, teaching enhances
their reading by the following classroom techniques:
Teachers use "already learned" information
to introduce text and integrate into a framework
of understanding.
Unfamiliar concepts and vocabulary are clarified
in order to promote interest, motivation and task
engagement.
Students "brainstorm" ideas into categories,
webs, outlines or clusters. Teachers may use guided
reading to integrate information and probe text
beyond literal meaning.
Multiple points of view are encouraged.
Students can revise preliminary questions, gather
information, organize their thoughts, analyze
and synthesize evidence in order to make generalizations
or associations leading to newunderstanding.
Encourage students to articulate their own understanding
of the text.
Teachers make it interesting through alternative
ideas or even arguing against an idea.
Teachers engage students in pre-guided or post-reading
activities that strengthen understanding.
Provide vocabulary and study skills.
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