Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!atha!aunro!alberta!brazeau.ucs.ualberta.ca!unixg.ubc.ca!ubc-cs!uw-beaver!milton!nntp.uoregon.edu!duff.uoregon.edu!jqj
From: jqj@duff.uoregon.edu (JQ Johnson)
Newsgroups: comp.human-factors
Subject: Wanted:  high temporal resolution video presentation devices
Message-ID: <1991Jun24.234254.21058@ns.uoregon.edu>
Date: 24 Jun 91 23:42:54 GMT
Sender: news@ns.uoregon.edu
Organization: University of Oregon Network Services
Lines: 27


I have a problem that is probably endemic to perceptual psychology
research labs.  I'm looking for devices that will present computer
graphics with very precise temporal resolutions -- preferably in the 5ms
range.  Unfortunately, a typical raster graphics screen at 72Hz refresh is
about a third as fast as I'd like, even if I drive it from a high end
workstation and don't have to worry about delays induced by the software or
OS.

We're currently using (1) a vector graphics display that gives very
precise temporal resolution for small display lists (say a dozen vectors)
but doesn't allow very much in the way of interesting graphics, and (2)
various photography-based kludges like printing copies of images and
showing them on a tachistoscope.

Can anyone suggest any graphical display hardware that could give me
better temporal resolutions?

Please reply by email since I don't read this list regularly.  If there
are concrete suggestions I'll summarize.

-- 
JQ Johnson
Director of Network Services		Internet: jqj@oregon.uoregon.edu
University of Oregon			voice:	(503) 346-1746
250E Computing Center			BITNET: jqj@oregon
Eugene, OR  97403-1212			fax: (503) 346-4397