On Mon, 24 May 2004, Jason Varvoutis wrote:
> I am wondering if anyone has ever encountered problems with subjects
> getting headaches after using the Iscan head-mounted eye tracker for more
> than 45 minutes (or any other problems with experiments of this length).
> If so, do you have any suggestions on how to address such a problem, or an
> idea of what the time limit for the use of this kind of equipment is?
I'm not familiar with that equipment/setup, but I've used the ASL 504 on
participants for between 45-90 minutes and they say their eyes got tired
from looking at the computer screen and thinking/concentrating for so long,
and a couple of the longer sessions (60-90 min) wished they had someone to
massage their necks :-), but none of them reported any headaches.
Jeffrey
? ? ? ? ? ? ? ? ?
Jeffrey J. Hayden Dept of East Asian Langs and Lits
(ÍõÁú¾Ô/¤ýÀs¾s) University of Hawai'i at Manoa
eFax: 413.487.0389 http://www2.hawaii.edu/~jeffrey
[T]here is a difference between "joy" which is the result of very
hard work over a long period of time to achieve success and "fun"
which is instant gratification.
--Paul Gagnon
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