Gonzalo:
In the past we used a laptop, a projector, and a special screen to
project visual stimuli into an MRI scan room from the operator's
console. It is not free (the screen cost ~$1000), but is not too
expensive, especially if you have a laptop and can borrow a projector
from your A/V department. The images become blurred a bit after being
projected through the shielded window, but it is still easy to see large
text and objects. We used this for a go-no-go task, and have not used
it to stimulate the visual cortex, so I don't know how well it would
work for that. We had to manually trigger the paradigm and scanner
simultaneously to synchronize the paradigm to the images. I can send
you more details off-list if you want.
-----
Peter B. Kingsley, PhD, MRI Physicist [log in to unmask]
Department of Radiology / MRI
North Shore University Hospital
300 Community Drive, Manhasset, NY 11030, USA
Tel (516) 562-2842 Fax (516) 562-3561
-----Original Message-----
From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]]
On Behalf Of Gonzalo Rojas
Sent: Friday, November 28, 2008 10:00 PM
To: [log in to unmask]
Subject: [SPM] cheap visual fmri ...
Hi:
How can I do a cheap visual fMRI ?... I ask it because we don't have
the money to buy special glasses for visual fMRI, and for that reason we
want to do it using a special cheap stimulus method... Do you have the
information for any cheap method ?... Could you please send me it ?...
Sincerely,
Gonzalo Rojas Costa
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