Thirty years ago, the groundbreaking Geschwind-Galaburda hypothesis defined the field of dyslexia, revealing and analyzing the complex associations among brain development, hormones, immune activity, and brain lateralization. This important volume revisits the hypothesis three decades later and explores key questions: What have we learned since then, and what still needs to be investigated?

Based on presentations from the 2016 Extraordinary Brain Symposium--and co-edited by one of the authors of the original hypothesis--this book synthesizes current dyslexia findings from more than...