Quote:
Originally Posted by Monahammer
You're thinking about it the wrong way.
If you're on the ice screaming down towards the net on a 2-1, you're keeping your head up looking at the net but also checking out the player going down with you to see if a pass will result in a better opportunity than your own shot. If you're attention is momentarily averted to your linemate and the goalie shifts in anticipation with colourful pads on (e.g. yellow or red) you're very likely to notice the shift and potential opening in your peripheral vision and be able to make that split second decision to shoot. We're talking on the order of miliseconds where that decision is made, and if you have a better idea of where the goalie is because he's extra noticeable then you have an advantage.
The noticeability of these colours is the exact reason they are used in traffic lights- even if you're not 100% focused you are likely to notice and spot them.
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The colours were chosen because the differences between them are noticeable, and easy to interpret. When yellow changes to red, you will see it in your peripheral vision. And you are very unlikely to mistake it for green (unless you are colourblind).
But there is also a reason that all traffic lights are in the same order. The placement is also information that your brain can instantly process.