Jeanette:
I once wrote to Doug Fields at the NICHD, who is a leading researcher in
white matter. Here is a cut and paste from his response to my questions
about connectivity and what he referred to as circuits. I attached his
incredible list of references. Look at the dyslexia section.
 
        Thank you for your letter and interest in our research and the
Sci. Am. article on white matter.  The July issue of Trends in
Neurosciences will have a scientific review article that I wrote on
white matter in neurological disorders and cognitive function that
includes many references on dyslexia.  I attach the supplemental table
that will accompany that review where you will find many references on
reading disorders and other psychiatric and cognitive processes
associated with white matter differences.
 
            In answer to your question, by circuits I mean connections
between different cortical regions where different aspects of decoding
visual information necessary for reading and language are carried out.
Timing is important because the information must pass from one center to
another to carryout the complex functions required for reading.  Of
course, developmental effects on neurons are also important.  My recent
research is simply indicating a new dimension for research into myelin
involvement in cognitive function.
 
            If you cannot get the Trends in Neurosciences article after
it comes out, let me know.  I can't release it until after it is
published, however.
 
Best regards,
Doug Fields
 
Dr. R. Douglas Fields
Editor-in-Chief Neuron Glia Biology, www.journals.cambridge.org/jid_NGB 
Dr. R. Douglas Fields
Chief, Nervous System Development 
& Plasticity Section 
National Institutes of Health, NICHD 
Bldg. 35, Room 2A211, MSC 3713 
35 Lincoln Drive 
Bethesda, MD 20892 
office (301) 480-3209, lab 402-4795
Lab home page:  http://nsdps.nichd.nih.gov/ 
Lab page in Neuroscience Program :
http://www.neuroscience.nih.gov/Lab.asp?Org_ID=274
 
 
Brant Hayenga
Educational Diagnostician 
Stapleton Elementary/Rio Rancho Middle School
(505) 896-0667 ext. 226 (District Office)
(505) 891-8473 ext. 519 (Stapleton Elementary)
bhayenga at rrps.net
 
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