Strephosymbolia was Samuel Orton's theory of dyslexia which he first published in 1925. The root strepho is Ancient Greek for "twisted" or "reversed"...

made learning to read difficult. In 1930, Orton called his theory strephosymbolia (meaning 'twisted signs') and specific reading disability to describe...

of visual words with their spoken forms. He termed this difficulty strephosymbolia, meaning "twisted symbols". This term stemmed from Orton's observation...