Archived posting to the Leica Users Group, 2003/08/09

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Subject: [Leica] Reaction time, stimuli and photography
From: "caliguri@rcn.com" <caliguri@rcn.com>
Date: Sat, 9 Aug 2003 20:10:28 -0400

Hi Folks! 

Reaction time and stimuli are, scientifically, paired in an extremely 
interesting way. Reflexive reactions, such as the 'hammer on knee' 
check you might receive in a medical check. The 'flexor reaction' of your 
leg when you step on something that hurts, is VERY fast -- in some 
less than 10 milliseconds (the signal does not have to travel to the 
higher areas of the central nervous system. They just need to pass 
through the spinal cord and a couple of synapses). Yes - you are 
eventually aware of it, but it will happen with your eyes closed and ears 
not hearing a thing! Others, such as the trick of having a person hold 
their thumb and index finger 6 or so cm. apart, while you hold the bill 
vertically with the bottom edge between them. Ask them to catch it with 
their two fingers when you drop it and they can keep it. MOST of the 
time, they cannot (so watch the amount!) because that action is not 
reflexive, they it's the "ocular" path so to speak, that one of you had 
mentioned. There is a lot of processing that needs to take place from 
when the 'catcher' sees it fall and pinches her fingers. Wild animals are 
blessed with some actions that are reflexive for them, but most people, 
that help them evade predators or get dinner etc.... that  sometimes 
makes photographing them, birds especially, very difficult. It also 
depends on the size and type of the neurons, type of muscle and 
junction, use of smell, etc....However, I suppose the point I am after is 
this -- most neuroscientists would agree that we can all be 'wired' 
differently, with multi pathways that provide the same end. Maybe some 
of the better 'peak action' photographers can be so in tune with their 
subject, camera, environment that their photography becomes more 
reflexive than contrived. Their camera, it's lag time, the sound and feel 
of it, becomes part of the whole. Perfect blend of human and machine 
working in harmony, such as great sports superstars or people who 
just 'know' what to do under certain circumstances. There are many 
possibilities! Really very interesting to think on!
Ed


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