L ea rnin g d is a b il ities are v e ry c o mmon
Th e y a f f ect perhaps 1 0 perce nt o f al l ch i ldr e n
Four times as ma ny bo y s as girls ha ve l ea r ning d i s ab i l it ies. Since ab ou t 19 70,n ew rese ar ch h a s h e l ped brain scient ist s un d erst a nd t h e s e pro b le m s b e tter
Scie n tist s no w know there a re m an y di ffer ent kinds of le a rning disa b ilit i es and t h at they are c aus e d b y m a n y d i fferen t thi ng s. Th e r e is n o l o nge r a n y question th at a ll learning disa b ilit i es resu l t from d i ff ere n c es in t he w a y t h e br ain is organiz e d
You c a nnot lo ok at a child and tell if he or s he ha s a learni n g disabili t y
The r e i s no ou tw ard sig n of t h e diso r d e r
S o some res e arch er s b e gan looking a t t