hi
The "handbook of perception and human performance" Vol 1 (New York Wiley)
is probably the best resource for this type of data.
of course there is a limit but it is very high for all practical purposes.
The main problem is aquiring a pursuit of a fast target. It is very hard to
aquire a target because the feedback is so slow. most lauch mechanisms for
fast targets are ambiguous (note there is NO point in trying to simulate
this on video!!!) it is possible to track tracer amunition at side view
standing only a few feet away from a supersonic rifle because the tracer
ingites some small distance from the barrel at a point nearly coincident
with the sonic boom and so produces a very easily aquired target. whereas a
much slower object such as a ball from a pitcher is initially hard for a
subject to track as the eye tends to continue pursuit of the pitshers hand
before attempting to re aquire the ball. If the subject is untrained the
requirement for conscious intervantion mens a delay of around 300 mS before
the target can be re aquired by which time it is nearly in the catchers mit.
With some small training however the track is very much improved.
Scott
----- Original Message -----
From: "Rogers" <[log in to unmask]>
To: <[log in to unmask]>
Sent: 08 November 2000 14:32
Subject: smooth pursuit velocity thresholds
> Dear members
>
> Can anybody direct me to research/papers that has tested for the
> maximum velocity that the eye can track a moving target (i.e. is
> there a velocity threshold where smooth persuit movements fail to
> keep up with a moving target?).
>
> Many thanks and best regards
>
> Steve Rogers
> Steve Rogers (BSc Hons, PGDip)
> Centre for Ecological Psychology
> Department of Psychology
> University of Portsmouth
> King Henry Building
> Portsmouth
> PO1 2DY
> Tel: (01705) 846322
> Fax: (01705) 846300
> email: [log in to unmask]
>
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