Complex sentence: This is not the same as blindness or deafness, because, unlike those disorders, sensory information is sensed by people with SID, but the information tends to be analyzed by the brain in an unusual way that may cause distress or confusion.
Split into simpler sentences: This is not the same as blindness or deafness, because, unlike those disorders, sensory information is received by people with SID. The difficulty is that information is processed by the brain in an unusual way that may cause distress or confusion.