I am sorry to have to report that the printer at YNiC (Canon) has jammed
and is out of operation until an engineer can visit.
I will inform you when it becomes available again
Gary
--
Gary Green
York Neuroimaging Centre
The Biocentre
York Science Park
Innovation Way
Heslington
York
YO10 5DG
http://www.ynic.york.ac.uk
tel. 01904 435349
fax 01904 435356
mobile 07986 778954
Dear all,
an interesting and brief article on the relationship between fMRI and
electrophysiology.
http://dx.doi.org/10.1016/j.cub.2008.03.042
Michael
--
Dr Michael Simpson
Science Liaison Officer
York Neuroimaging Centre
Innovation Way
York
YO10 5DG
Tel: 01904 567614
Web: http://www.ynic.york.ac.uk
Dear users
TAKE HOME MESSAGE: A FRONT-SILVERED MIRROR HAS NOW BEEN MOUNTED IN MRI
IMPROVING IMAGE QUALITY
Many of you will be aware that the visual stimulus delivery setup in
MRI relies on back-projection onto a screen which the participant then
views via a mirror mounted in front of their face.
We have always been aware that standard mirrors are sub-optimal for this
type of setup: as soon as a standard mirror is tilted internal
reflection and refraction of light causes slight blurring of the image
.. sometimes this is perceived as a 'double edge' when viewing object
binocularly.
This effect can be minimised by using a minimum glass thickness in front
of the reflective surface of the mirror. Thus, to date, we have used a
2mm thick mirror to aid image quality. Unfortuantely many of you have
expressed concerns that this is still not as good as you would like.
We have thus decided to fit a custom cut front-silvered mirror in place
of the previous setup. These mirrors have effectively no glass thickness
since it is the front surface of the mirror that is the reflective one.
This (for the money) is as close as we can get to perfect reflection and
should resolve your problems.
Unlike standard mirrors, front-silvered ones have no protection of the
reflective surface and are highly sensitive to scratching and marking.
The mirror can only be cleaned of dust with special products and oily
stains may be impossible to remove. As such all users / operators must
avoid handling the mirror surface directly and should place the mirror
array in place / store with care to avoid scratching of the mirror
surface by other objects.
We hope the improved quality will benefit us all.
Contact me if you have any queries.
Kind regards,
Andre'
--
************************************************************************
Andre Gouws
User Support Manager
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 435328
Fax: +44 (0) 1904 435356
Dear users,
Thanks for reading!
I am a new user about freesurfer, after learning it a little while, I
have got some problems:
1. I have used "recon-all" successfully to process the sMRI data, which
generated the "lh.pial". And, I used "mris_convert lh.pial lh.pial.asc",
get text mesh "lh.pial.asc". May I ask how can I view this with visible
mesh associated with the vertices and triangle?
2. I have read the Manual v 0.8. It seems all of the interface has not
supported in our new Freeserfer version...do you have some good
suggestion about the materials for beginner to learn?
I really appreciate your help!Looking forward to your reply!
Kind regards,
Jing
*N.B. Today's seminar will be held in A202 in Psychology and not in YNiC*
Dear Users
Today's seminar (Thursday 4 pm in the Venables room, A202 ) will be
given by Ole Jensen from FC Donders.
http://oase.uci.ru.nl/~olejen/
The title of his talk will be "How slow event-related fields are created
from cognitive modulations in oscillatory brain activity".
Everyone is welcome to attend and there will be wine and soft drinks
available after the talk.
Best wishes
Rebecca
--
************************************************************************
Dr. Rebecca E. Millman
Science Liaison Officer
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 567614
Fax: +44 (0) 1904 435356
Dear Users,
Concatenation or higher level stats?
We would value the input of any users who have experience of 'combining'
fMRI data across multiple runs for more robust averaging.
The issue arises when trials of an experient are acquired in different
data blocks due to technical limitations of scan scquisition protocols or
often to reduce the strain on participants in a single session.
I have searched many available resources. There are well documented
routines for (1) analysinng the sessions individually and then compring
them with a higher level analysis or (2) demeaning the two timeseries and
combining them into a single one .. then following the standard analysis
individual subject routine.
Comments would be appreciated (especially from anyone has first hand
experience of doing this).
Thanks
Andre'
Dear Users
Please note that, contrary to the email I sent this morning, this week's
YNiC seminar will be held in Psychology i.e. *NOT YNIC*.
Ole's talk will be in the Venables room (A202) since B020 is being used
for a graduation party.
Best wishes
Rebecca
--
************************************************************************
Dr. Rebecca E. Millman
Science Liaison Officer
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 567614
Fax: +44 (0) 1904 435356
Dear Users
This week's seminar (Thursday 4 pm at YNiC) will be given by Ole Jensen
from FC Donders.
http://oase.uci.ru.nl/~olejen/
The title of his talk will be "How slow event-related fields are created
from cognitive modulations in oscillatory brain activity".
Everyone is welcome to attend and there will be wine and soft drinks
available after the talk.
Best wishes
Rebecca
--
************************************************************************
Dr. Rebecca E. Millman
Science Liaison Officer
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 567614
Fax: +44 (0) 1904 435356
Dear Colleagues
Computing Service have asked us to take our machines down for a period
of three hours on Wednesday evening. This will allow us to take
advantage of a change in the University network architecture and will
provide more resilience in our connections to the University.
Please can everyone stop submitting cluster jobs that will not be
complete by 5pm on Wednesday. To be on the safe side I would suggest not
submitting jobs after 3pm on Wednesday. Even then jobs may be lost if
they are still running at 5.
During the downtime, mail and web services will also be interrupted but
for a shorter period.
Thanks
--
Gary Green
York Neuroimaging Centre
The Biocentre
York Science Park
Innovation Way
Heslington
York
YO10 5DG
http://www.ynic.york.ac.uk
tel. 01904 435349
fax 01904 435356
mobile 07986 778954
