Discussion
vonhosen said:
On the link there is a video.
There are two teams consisting of three players each.
One team in white shirts & one in black.
Each have a basketball.
Count how many times in the clip, that the WHITE team pass the ball from one player's hands to another player's hands. It doesn't count if during the pass the ball touches the ground (only hand to hand).
http://viscog.beckman.uiuc.edu/grafs/demos/15.html
Absolutely fantastic! There are two teams consisting of three players each.
One team in white shirts & one in black.
Each have a basketball.
Count how many times in the clip, that the WHITE team pass the ball from one player's hands to another player's hands. It doesn't count if during the pass the ball touches the ground (only hand to hand).
http://viscog.beckman.uiuc.edu/grafs/demos/15.html
waremark said:
So what sort of things do we miss in our driving observations?
You won't really know unless you have a moment, or unless someone else observing you judges from your actions that they think you've missed something, based on what they consider was an inappropriate response & they then discuss it with you.We undoubtedly miss things, but whether it's important things or not will vary.
The better we are, the better we are at prioritising & know what not to waste too much focus on.
waremark said:
There is a general message that one should try to maintain a scan rather than focus on a particular known hazard.
In general you do scan, but when there is something very important you will give that a little more focus, it's inevitable & even necessary. The skill is not getting bogged down by focusing on what is not important to the detriment of something that is.Of interest is Crundall's research at Nottingham comparing eye movements and perceptions of trained Police drivers in response and pursuit drives to novice and untrained drivers.
Findings:
* Overall the findings confirm the idea that police drivers have systematically enhanced performance in visual search and memory compared with other drivers.
* Generally, they scan more of the scene, having to spend less time processing each individual item they look at.
* Police drivers are sensitive to more hazards than normal drivers, and have enhanced memory for the important information from driving scenes.
And specifically on how Police Drivers look at stuff:-
Police drivers showed shorter fixation of the eyes on one object and greater spread of visual search. And this was true for all driving clips used in the experiments - not just specifically demanding ones.
Link to paper - http://tinyurl.com/yssaw6
(credit to Susie who first pointed this paper out to me)
Findings:
* Overall the findings confirm the idea that police drivers have systematically enhanced performance in visual search and memory compared with other drivers.
* Generally, they scan more of the scene, having to spend less time processing each individual item they look at.
* Police drivers are sensitive to more hazards than normal drivers, and have enhanced memory for the important information from driving scenes.
And specifically on how Police Drivers look at stuff:-
Police drivers showed shorter fixation of the eyes on one object and greater spread of visual search. And this was true for all driving clips used in the experiments - not just specifically demanding ones.
Link to paper - http://tinyurl.com/yssaw6
(credit to Susie who first pointed this paper out to me)
Edited by 7db on Wednesday 24th October 09:34
Very interesting stuff (though I was not up to reading the full paper). Having identified the seach and observation characteristics of police drivers, the next question is how to train these characteristics without sending all drivers out on response and pursuit drives! I suspect that commentary helps. The commentary would never try to keep up with the scan, but the need to search out suitable material for the commentary encourages the scan. Do peope agree?
On the specific question of scan versus focus, VH is obviously right to say that some hazards require more attention. However, one coach pointed out to me that once you have identified a hazard you can often monitor it peripherally while continuing to scan. So for example as you pass a hazard you can monitor it with peripheral vision while continuing to scan well ahead. I sometimes do this consciously.
On the specific question of scan versus focus, VH is obviously right to say that some hazards require more attention. However, one coach pointed out to me that once you have identified a hazard you can often monitor it peripherally while continuing to scan. So for example as you pass a hazard you can monitor it with peripheral vision while continuing to scan well ahead. I sometimes do this consciously.
Edited by waremark on Wednesday 24th October 16:02
waremark said:
Very interesting stuff (though I was not up to reading the full paper). Having identified the seach and observation characteristics of police drivers, the next question is how to train these characteristics without sending all drivers out on response and pursuit drives! I suspect that commentary helps. The commentary would never try to keep up with the scan, but the need to search out suitable material for the commentary encourages the scan. Do peope agree?
On the specific question of scan versus focus, VH is obviously right to say that some hazards require more attention. However, one coach pointed out to me that once you have identified a hazard you can often monitor it peripherally while continuing to scan. So for example as you pass a hazard you can monitor it with peripheral vision while continuing to scan well ahead. I sometimes do this consciously.
Depends what it is.On the specific question of scan versus focus, VH is obviously right to say that some hazards require more attention. However, one coach pointed out to me that once you have identified a hazard you can often monitor it peripherally while continuing to scan. So for example as you pass a hazard you can monitor it with peripheral vision while continuing to scan well ahead. I sometimes do this consciously.
Edited by waremark on Wednesday 24th October 16:02
The child about to run out demands more than my peripheral vision. The action I'm going to take in relation to it, means I can temporarily suspend my scanning beyond that point, because I'm not going to be getting that far forward for a while.
There has been some more recent work looking at levels of driver training & it's resultant effect on crossmodal attention & processing. I've seen one paper (but it hasn't been published yet) & the other is still in the number crunching phase, the data having only just been collated.
Edited by vonhosen on Wednesday 24th October 18:03
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