In a motor accident, wherein a speeding car hits a slower moving vehicle
> coming from the side, the speeding car drivers often swear that they just
> didn’t see the vehicle coming from the left or right.
> Well, they aren’t lying.
> They really don’t see the vehicle coming from the side, in spite of broad
> This phenomenon on the car drivers’ part is known as “Motion Induced
> It is definitely frightening.
> Once airborne, pilots are taught to alternate their gaze between scanning
> the horizon and scanning their instrument panel, and never to fix their gaze
> for more than a couple of seconds on any single object.
> They are taught to continually keep their heads on a swivel and their eyes
> always moving.
> If you fix your gaze on one object long enough while you yourself are in
> motion, your peripheral vision goes blind.
> Till about three decades ago, this “heads on swivel & eyes moving” technique
> was the only way to spot other aircraft in the skies around.
> Now-a-days they have on-board radars, but the old technique still holds
> Let me give you a small demonstration of motion induced blindness.
> Just click on the link below.
> You will see a revolving array of blue crosses on a black background.
> There is a flashing green dot in the centre and three fixed yellow dots
> around it.
> If you fix your gaze on the green dot for more than a few seconds, the
> yellow dots will disappear at random, either singly, or in pairs, or all
> three together.
> In reality, the yellow dots are always there.
> Just watch the yellow dots for some time to ensure that they don’t go
> (Notes given by the author below the rotating array are educative.)
> So, if you are driving at a high speed on a highway and if you fix your gaze
> on the road straight ahead, you will not see a car, a scooter, a buggy, a
> bicycle, a buffalo or even a human being approaching from the side.
> Now reverse the picture .
> If you are crossing a road on foot and you see a speeding car approaching,
> there’s a 90% chance that the driver isn’t seeing you, because his/her
> peripheral vision may be blind!
> You may be in that blind zone.