As I have mentioned before, Fox News must have a motorcyclists/biker on their web staff. They have published an interesting but misnamed article regarding why auto drivers do not see motorcycles.
Titled Insurance Tips the article on the Fox Business website is really about how Texas Tech University psychologists studying how the human brain perceives objects, their size and motion in relation to time to impact. The long story short is that because bikes are smaller our brains misjudge what is happening thus causing accidents.
A bit of a read but worth it in understanding if, when we are on our bikes, we are optical illusions or human miscalculations.