Possible Reason For Crashes

daviesee

I just got sent this at work. Scary how it works :shock:

Very interesting and can explain why once in a while when driving a car you're suddenly surprised by something you hadn't seen (like a motorcycle). Strange…

Motion Induced Blindness

This is frightening! It works exactly like it says, and is one major reason people in cars can look right at you (when you're on a motorcycle or bicycle)---AND NOT SEE YOU. From a former Naval Aviator. This is a great illustration of what we were taught about scanning outside the cockpit when I went through training back in the '50s. We were told to scan the horizon for a short distance, stop momentarily, and repeat the process. I can remember being told why this was the most effective technique to locate other aircraft. It was emphasized (repeatedly) to NOT fix your gaze for more than a couple of seconds on any single object. The instructors, some of whom were WWII veterans with years of experience, instructed us to continually "keep our eyes moving and our head on a swivel" because this was the best way to survive, not only in combat, but from peacetime hazards (like a midair collision) as well. We basically had to take the advice on faith (until we could experience for ourselves) because the technology to demonstrate it didn't exist at that time.

Click on the link below for a demonstration .... Safe for Work.

http://www.msf-usa.org/motion.html

EKE_38BPM

daviesee wrote:

I just got sent this at work. Scary how it works :shock:

Very interesting and can explain why once in a while when driving a car you're suddenly surprised by something you hadn't seen (like a motorcycle). Strange…

Motion Induced Blindness

This is frightening! It works exactly like it says, and is one major reason people in cars can look right at you (when you're on a motorcycle or bicycle)---AND NOT SEE YOU. From a former Naval Aviator. This is a great illustration of what we were taught about scanning outside the cockpit when I went through training back in the '50s. We were told to scan the horizon for a short distance, stop momentarily, and repeat the process. I can remember being told why this was the most effective technique to locate other aircraft. It was emphasized (repeatedly) to NOT fix your gaze for more than a couple of seconds on any single object. The instructors, some of whom were WWII veterans with years of experience, instructed us to continually "keep our eyes moving and our head on a swivel" because this was the best way to survive, not only in combat, but from peacetime hazards (like a midair collision) as well. We basically had to take the advice on faith (until we could experience for ourselves) because the technology to demonstrate it didn't exist at that time.

Click on the link below for a demonstration .... Safe for Work.

http://www.msf-usa.org/motion.html

Yup, scary.

I suppose why Martin Brundle always says "Look, but never stare" Bit of cross thread posting.

asprilla

Happens to me because I've got an enlarged blind spot in my right eye (precludes me from becoming an airline pilot). Result of a viral infection of my nervous system that left me blind for three months at the age of 16.

For a short while I thought my mum had been right all along and I stopped playing with it completely.

rjsterry

Interesting. I have to admit I was a little sceptical when i started the test. Reminds me of the 'looming' phenomenon as well - when something is travelling directly towards you it is difficult to detect movement as its outline relative to the background changes very little - until it gets close then suddenly appears to accelerate towards you.

daviesee

rjsterry wrote:

Interesting. I have to admit I was a little sceptical when i started the test. Reminds me of the 'looming' phenomenon as well - when something is travelling directly towards you it is difficult to detect movement as its outline relative to the background changes very little - until it gets close then suddenly appears to accelerate towards you.

A parachute jump is a very good example of that. A very calm, serene and surreal thing to partake in. Until the last 3 seconds :shock:

roger_merriman

yeah you see with the brain than the eyes.

had a timely reminded of that about a month ago when a London Dynamo ran into me in Richmond Park, I was visible and stationary for 1/4 a mile or so, but he still just rode into my leg.

i'm sure his brain just disregarded me so didn't see me as you where.

Kieran_Burns

daviesee wrote:

rjsterry wrote:

Interesting. I have to admit I was a little sceptical when i started the test. Reminds me of the 'looming' phenomenon as well - when something is travelling directly towards you it is difficult to detect movement as its outline relative to the background changes very little - until it gets close then suddenly appears to accelerate towards you.

A parachute jump is a very good example of that. A very calm, serene and surreal thing to partake in. Until the last 3 seconds :shock:

I can promise you I was NOT calm when I jumped out :shock: It was the first damn time I'd flown as well, I sometimes think I'd not thought that through properly.

asprilla

roger merriman wrote:

yeah you see with the brain than the eyes.

had a timely reminded of that about a month ago when a London Dynamo ran into me in Richmond Park, I was visible and stationary for 1/4 a mile or so, but he still just rode into my leg.

i'm sure his brain just disregarded me so didn't see me as you where.

That might have been target fixation; see the pot hole, know you must avoid pot hole, keep eyes fixed on pot hole to make sure you don't ride straight over it, ride straight over it.

Use to happen to pilots when straffing targets. They would be concentrating so much on the target they they would forget not to crash into it.

Kieran_Burns

I mentioned this a while back:

viewtopic.php?p=17090288

links:
http://www.motorcycleinfo.co.uk/index.c ... eId=146841
http://en.wikipedia.org/wiki/Motion_camouflage

veronese68

i must say when I started to read this thread I expected it to be about looming. That is quite scary how often you lose the dots.

daviesee

Kieran_Burns wrote:

I can promise you I was NOT calm when I jumped out :shock:

Yes. Sorry. I forgot about the initial 10 seconds of involuntary screaming until the chute opens and you count to 4 then "check canopy"
Calm and serene after that though. For a while.

veronese68

I'm very much of the "Why get out of a perfectly good plane that's going to land anyway?" school of thought.

Kieran_Burns

daviesee wrote:

Kieran_Burns wrote:

I can promise you I was NOT calm when I jumped out :shock:

Yes. Sorry. I forgot about the initial 10 seconds of involuntary screaming until the chute opens and you count to 4 then "check canopy"
Calm and serene after that though. For a while.

When we were doing the training I asked the question "how long would it take to hit the ground if the chute doesn't open?"

"19 seconds" came the reply.

"Great" says I "I'm counting to 20 THEN opening my eyes!"

MattC59

Christ, I'm never riding on a rotating grid, populated with yellow dots, again !!!!

davmaggs

Thanks for that link, really interesting.

I remember a while back that there were some public information adverts about motorcycles. It seems that people see that off at a distance, but then the brain blanks them out (like the dots) so the driver then pulls out and smashes into them.

It is if I recall a condition that can develop or get worse, but the person may well be unaware of it until a bad day out occurs.

kelsen

corshamjim

kelsen wrote:

Yes I remember my physics teacher at school (way back last century) telling the class he was cycling along when he first saw a girl in a mini-skirt in the '60s and nearly came off his bike.

mtb-idle

yup it's a bit like this one from a while back

how many passes does the team in white make?

mrc1

corshamjim wrote:

kelsen wrote:

Yes I remember my physics teacher at school (way back last century) telling the class he was cycling along when he first saw a girl in a mini-skirt in the '60s and nearly came off his bike.

Must.... not.... make.... the.... joke....

shouldbeinbed

kelsen wrote:

oooh, subversive for in here nowadays.

SimonAH

MODS! MODS! I am nearly offended on behalf of someone else!

Initialised

This is a good demo of the effect guess which one is the cyclist:

http://www.youtube.com/watch?v=vJG698U2Mvo