Four dead and two hurt today

**rastuscat** · 21st November 2018, 17:40

Originally Posted by roogazza

Foveal ,thats a new word for me at least.
I don't think there's any doubt that some humans have faster brains. I know I have to re programme if I haven't been driving/riding at speed for a bit. Take racing drivers/riders , I bet they see things others don't.
Maybe in some ,the Foveal visions narrows thru fear ????? Just a couple of thoughts....Interesting tho.

I'll look out the source on foveal vision.

**Ulsterkiwi** · 21st November 2018, 18:10

Originally Posted by rastuscat

I'll look out the source on foveal vision.

It’s an anatomical description. The fovea is a section of the retina with the highest concentration of cones in the retina. Your highest level of visual acuity comes from there. It’s also the main point of focus for the lens. The parts of the retina most sensitive to movement are peripheral to the fovea. We can sense something is there if it moves but we need to shift our attention/focus so the fovea can be brought to bear if we want to see what it is, how big it is, what colour it is etc etc
Any decent anatomy text will be ok for reference

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**rastuscat** · 21st November 2018, 18:36

Originally Posted by Ulsterkiwi

It’s an anatomical description. The fovea is a section of the retina with the highest concentration of cones in the retina. Your highest level of visual acuity comes from there. It’s also the main point of focus for the lens. The parts of the retina most sensitive to movement are peripheral to the fovea. We can sense something is there if it moves but we need to shift our attention/focus so the fovea can be brought to bear if we want to see what it is, how big it is, what colour it is etc etc
Any decent anatomy text will be ok for reference

Sent from my iPhone using Tapatalk

Feck. I had no idea I wuz that cleva

**Ulsterkiwi** · 21st November 2018, 18:51

Originally Posted by rastuscat

Feck. I had no idea I wuz that cleva

There’s more. We also have a blind spot. Where the optical nerve leaves the eyeball there are no rods or cones, hence we cannot sense any light that falls there. That is medial to the fovea. So we need to keep the eye moving to ensure we have the appropriate part of the retina directed at what we need to see

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MD · 21st November 2018, 19:05

Foveal vision. Now I know there is a term for what we'd talk about all those years of doing the East-west sprints. It's run on a narrow road and once you get above 250 and chasing 300 kph your vision would focus further and further ahead. It was quite noticeable how all you could see was a spot miles ahead it seemed. Everything else becomes a blur.

**rastuscat** · 21st November 2018, 19:33

Originally Posted by MD

Foveal vision. Now I know there is a term for what we'd talk about all those years of doing the East-west sprints. It's run on a narrow road and once you get above 250 and chasing 300 kph your vision would focus further and further ahead. It was quite noticeable how all you could see was a spot miles ahead it seemed. Everything else becomes a blur.

Your eyes see it, but your mind just says "blur blur blur"

**scumdog** · 21st November 2018, 19:53

Originally Posted by Banditbandit

I totally agree ... like the TV ads say "Everyone thinks they drive well - I have never seen anyone crash well .. "

You missed one out ...

I belong to the rebellion group - I ride as a rebellion - and I break the law as a deliberate act ..

(Yeah - sometimes I get caught and pay a fine .. that's an accepted consequence)

I've survived 45 years of rebellious riding ... I'm lucky (or maybe above average - I stress maybe 'cause some of the people I ride with a way way quicker than me ...) .. but lots have not survived ...

(The night I learnt a very close friend had dumped his bike while drunk and was killed - I got totally drunk and rode home ... very stupid - lucky to still be alive - I don't do that shit any more)

I don't ride a harley as many of the rebellious group do - and many of them I see are actually shit useless on the bloody road lice ... If they ride rebelliously they are way more likely to dump it and die .. and they do ... pushing their symbols of rebellion way beyond the rider's limits - or being just plain stupid. I do ride fast, I don't pass on blind corners or other stupid shit I see ...

Your problem (or the authorities problem) is to how to reach this group - because we simply won't listen ... we are totally anti-authoritarian ..

Anti-authoritarian generally = 'it won't happen to me' mentality.

There's an army somewhere that needs you as cannon-fodder...

**rastuscat** · 21st November 2018, 21:22

Originally Posted by scumdog

Anti-authoritarian generally = 'it won't happen to me' mentality.

There's an army somewhere that needs you as cannon-fodder...

Scummie comes out of retirement to defend common sense.

**bikaholic** · 21st November 2018, 22:33

Originally Posted by rastuscat

Scummie comes out of retirement to defend common sense.

Earlier this year I applied common sense. I went from CBR1000RR to a CRF1000. I would use it to hone my rusty offroad skills and slow down on the seal. At first I thought I'd lost my mind, but slowing down is epic failure, fortunately.

**SaferRides** · 22nd November 2018, 00:27

Originally Posted by roogazza

Maybe in some ,the Foveal visions narrows thru fear ????? Just a couple of thoughts....Interesting tho.

No, it's just how the visual processing in the brain works. It is also one of the reasons why excessive speed is dangerous on public roads, because you just won't see some hazards.

**rastuscat** · 22nd November 2018, 07:20

Kind of summarizes the last few posts.

Click image for larger version.

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You can see more and your brain can register more if you

Slow down
Move your head in a scanning motion

**pritch** · 22nd November 2018, 09:06

Originally Posted by MD

once you get above 250 and chasing 300 kph your vision would focus further and further ahead. It was quite noticeable how all you could see was a spot miles ahead it seemed. Everything else becomes a blur.

I have read mention of this several times over the years, usually associated with speeds approaching 300kph, and you've been there done that. Cool.

**Banditbandit** · 22nd November 2018, 09:34

Originally Posted by scumdog

Anti-authoritarian generally = 'it won't happen to me' mentality.

There's an army somewhere that needs you as cannon-fodder...

I tried - the army would not take me - did not like my anti-authoritarian stance ..

"It won't happen to me' mentality ???

Fuck me - I amazed I'm still alive ... I fully expected it to have happened ..

Originally Posted by rastuscat

Scummie comes out of retirement to defend common sense.

I think I would like a higher level of intelligence than 'common sense' .. 50% of the population is below average intelligence .. so much for common sense ..

**Ocean1** · 22nd November 2018, 10:26

Originally Posted by pritch

I have read mention of this several times over the years, usually associated with speeds approaching 300kph, and you've been there done that. Cool.

I tried, once. For scientific reasons y'undertand.

The genuinely 300kph Hayabusa that passed me at the time didn't do so all that quickly, but more to the point I also can report that my brain was indeed far too busy dealing with other shit to be bothered about what my eyes might be seeing six inches in front of my face.

Not that I can actually see the speedo all that well at any other speed, mind...