Similarities and differences in the neural correlates of letter and speech sound integration in blind and sighted readers.

•The neural basis of letter-speech sound (LS) integration is similar in the blind and sighted.•In both groups the integration takes place in the superior temporal cortex.•The direction of the congruency effect is different between the groups.•LS discrimination efficiency and congruency effect correlated with age and reading skills only in the sighted.