[visionegg] Re: Hardware for Vision Egg
- From: "Damian McCrossan" <d.mccrossan@xxxxxxxxxxx>
- To: <visionegg@xxxxxxxxxxxxx>
- Date: Wed, 29 Oct 2003 17:20:24 +0100
Lars,
We are recording with success from mouse V1 using the VisionEgg software.
When using windows there is always the dilemma of timing. We trigger data
collection using a photodiode on the screen to avoid the delay with data
transmission to the videocard (40-90msecs). We also programmed a TTL through
the parallel port but this appeared also around 100msec before the actual
arrival of the stimuli on the screen. The stimuli are projected to the
screen using a DLP beamer to maintain that RGB signals all converge at the
same time. People use DLP beamers to present stimuli to in vitro retinal
preparations, also with success. The graphics card that we use is a standard
GeFORCE4 card.
Good luck
Damian
-----Original Message-----
From: visionegg-bounce@xxxxxxxxxxxxx
[mailto:visionegg-bounce@xxxxxxxxxxxxx]On Behalf Of Lars van Ahrens
Sent: Wednesday, October 29, 2003 4:56 PM
To: visionegg@xxxxxxxxxxxxx
Subject: [visionegg] Hardware for Vision Egg
Hello!
Our electrophysiological setup is currently working with simple white
light-/flicker-stimulation and we are planning to upgrade it with complex
visual stimuli using Vision Egg. Regarding the high flicker fusion
frequency of mice we are looking for a CRT monitor with an appropriate
high vertical refresh frequency - and bright should it be too. And the
graphics card should work well with the other hardware components.
Perhaps somebody can make a suggestion for a reasonable combination of
hardware. Or maybe somebody can give us a short report of a combination
which already works reliably.
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