AirTren
This is not what I say at all - what the statement says is that some people PROCESS audio signals quicker than they process visual signals. You could say that their hearing functions at a higher rate then their vision if you wanted to simplify. The processing and interpretation of the signal are the significant factors not the receipt or transmission of the signal. Some people will even respond to an audio signal whilst they may overlook a visual cue. In fact visual cues are often missed - a simple example, think of the times you've missed someone waving at you but responded when they spoke to you.