Blindsight refutes the scanning theory of consciousness
The fact that blindsighters can learn—ie improve at tasks involving their blind fields—refutes the scanning theory of consciousness.
If blindsight is to be explained as a failure of higher level scanners and if they scanners also make learning possible, then blindsighters shouldn't be capable of learning—ie of improving at tasks involving their blind fields.
But evidence shows they can learn. Therefore the scanning theory is false.
Leopold Stubenburgh (1992).