Dear Users
Please be aware that, as of this week, YNiC Thursday seminars will start
at the later time of *4.30 pm*.
This shift in the starting time is necessary to avoid a clash with
teaching sessions in Psychology.
Thank you
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 (4-5 pm YNiC open plan) Andy Ellis will give a talk on
"Semantically-driven re-activation of visual cortex in object
recognition?".
Summary:
Magnetoencephalography was used to probe the nature and time course of
responses to early and late acquired objects in a covert naming task.
Analysis focused on regions in left occipital and anterior temporal cortex
that have been reported to show stronger responses to early than late
acquired objects in fMRI. An evoked response in visual cortex around 170
ms was followed by an evoked response in anterior temporal cortex (150-250
ms) that was stronger to early than late acquired objects. This was
followed by an induced re-activation of visual cortex from 250 ms onwards
that was also modulated by age of acquisition.
Everyone is welcome to attend.
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
Today (4-5 pm YNiC open plan) Chris Racey will give a project proposal
talk on "Processing of real world objects in object selective cortex:
effects of parametric manipulation of size change".
Summary:
The visual system is able to perform recognition tasks in a manner that
appears to be invariant to changes in size of the retinal image. It is
thought that this size invariance is established early on in visual
processing (Goodale & Milner, 1992; Rolls, 2000). The aim of the present
study is to measure adaptation to objects of changing size across the
whole visual system and across several size change conditions which vary
parametrically. The design of the present experiment will be an
fMR-adaptation paradigm similar to that used in our previous work
looking at viewpoint invariance (Racey et al., 2010). We aim to measure
differences in size invariance for objects between the various category
selective brain regions at the level of the Ventral Occipito-Temporal
cortex (VOT). Further, we aim to measure the change in size invariance
moving posterior to anterior through the visual processing hierarchy.
Everyone is welcome to attend.
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 (4-5 pm YNiC open plan) Chris Racey will give a project
proposal talk on "Processing of real world objects in object selective
cortex: effects of parametric manipulation of size change".
Summary:
The visual system is able to perform recognition tasks in a manner that
appears to be invariant to changes in size of the retinal image. It is
thought that this size invariance is established early on in visual
processing (Goodale & Milner, 1992; Rolls, 2000). The aim of the present
study is to measure adaptation to objects of changing size across the
whole visual system and across several size change conditions which vary
parametrically. The design of the present experiment will be an
fMR-adaptation paradigm similar to that used in our previous work
looking at viewpoint invariance (Racey et al., 2010). We aim to measure
differences in size invariance for objects between the various category
selective brain regions at the level of the Ventral Occipito-Temporal
cortex (VOT). Further, we aim to measure the change in size invariance
moving posterior to anterior through the visual processing hierarchy.
Everyone is welcome to attend.
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
The security access code for YNiC has been changed today. So if any user
has a set of access door keys for YNiC, and hasn't already been advised
of the new access code, then could they please contact myself or another
member of YNiC staff.
This change has no impact on the door fobs which should continue to work
as before.
Many thanks,
Jo.
--
............................
Jo Saunders
Centre Manager
YNiC
The BioCentre
York Science Park
YORK
YO10 5DG
Email: Joanna(a)ynic.york.ac.uk
Tel: (01904) 435343
Fax: (01904) 435356
Tues, Wed & Thurs
.............................
Dear Colleagues
As you know, Alliance Medical have now left YNiC.
This means that they obviously are not providing MRI Operators.
The only authorised MRI operators are
Andre Gouws
Mark Hymers
Ross Devlin (temporary appointment to cover clinical projects, but is
available for research scanning from the 5th of January)
others are in training. I will inform you when more operators become
available
Please do not try and operate the magnet console if you are not on the
list. This is for your safety and those of your participants. You will
not be covered by insurance if an incident were to occur.
The full list of operators can always be found at
https://www.ynic.york.ac.uk/information/mri-operators
Gary
--
Gary Green
York Neuroimaging Centre
The Biocentre
York Science Park
Innovation Way
Heslington
York
YO10 5DG
http://www.ynic.york.ac.ukhttps://www.ynic.york.ac.uk/about-us/people/ggrg
tel. +44 (0) 1904 435349
PA (Amy Gibson) +44 (0) 1904 435329 or amy.gibson(a)ynic.york.ac.uk
fax +44 (0) 1904 435356
mobile +44 (0) 788 191 3004
Dear Users
Today (4-5 pm in YNiC open plan) Gary Green will give a talk on
""Opportunities for pattern classifiers".
Everyone is welcome to attend and refreshments will be available
afterwards.
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
Hi,
As you are probably aware, YNiC open plan will be closed tomorrow for
staff training. We're also going to take the opportunity to perform a
needed hardware fix on one of the main servers, so it won't be possible
for people to leave analyses running on the machines in open plan or the
cluster. This outage will be from around 9am for an hour or so.
This will also affect the remote desktop service, which will be rebooted
as part of the work - anybody who has suspended sessions should make
sure that they save their work before tomorrow morning. I've explicitly
Bcc'd those who appear to have sessions running to ensure that they know
about this - apologies to anyone who gets the mail twice.
Thanks,
Mark
--
Mark Hymers
York Neuroimaging Centre
Dear Users
This week (4-5 pm in YNiC open plan) Gary Green will give a talk on
""Opportunities for pattern classifiers".
Everyone is welcome to attend and refreshments will be available afterwards.
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 All,
The deadline for abstracts to VSS is Wednesday, December 1st (11:59
latest time zone on earth). This might be Thursday morning for us!
Tim
-------- Original Message --------
Subject: VSS Abstract Submission Deadline is this Wednesday, December 1st
Date: Mon, 29 Nov 2010 17:04:47 -0800
From: Vision Sciences Society <VSS(a)visionsciences.org>
Reply-To: VSS Information <vss(a)visionsciences.org>
To: t.andrews(a)psych.york.ac.uk
The deadline for submitting abstracts for the VSS 2011 Meeting is
Wednesday, December 1st (11:59 latest time zone on earth). To access
your online account, log in to the VSS Online Membership and Meeting
System <http://www.visionsciences1.org/vss_public/>. You must renew your
membership for 2011 to be eligible to submit an abstract.
For more information or if you have questions, please contact Vision
Sciences Society <mailto:vss@visionsciences.org>.
If you are applying for the 2011 Elsevier/Vision Research Travel Award
all supporting documentation is also due on 12/1/10.
Complete application instructions can be found at Student Travel Awards
<http://www.visionsciences.org/awards.html>.
Follow Us on Twitter <http://twitter.com/VSSMtg>
<http://www.facebook.com/pages/Vision-Sciences-Society-Official-VSS-Page/355…>
--
Dr Tim Andrews
Department of Psychology
University of York
York, YO10 5DD
UK
Tel: 44-1904-434356
Fax: 44-1904-433181
http://www-users.york.ac.uk/~ta505/
Dear Users
There will not be a YNiC seminar this Thursday (2nd December).
The next seminar will be given by Gary Green on 9th December.
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 afternoon Andre Gouws will be giving a presentation (4-5 pm) in
YNiC open plan.
The title of Andre's talk is "Suppressive feedback from the visual
cortex to the LGN: Evidence from negative BOLD".
This presentation will include results and discussion of data presented
at SFN this year, and will conclude with a project presentation for
extension of the current work.
Everyone is welcome to attend and refreshments will be available afterwards.
--
ynic-users mailing list
ynic-users(a)ynic.york.ac.uk
https://www.ynic.york.ac.uk/mailman/listinfo/ynic-users
************************************************************************
Andre Gouws
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 435327
Fax: +44 (0) 1904 435356
Hello all,
Just a reminder that tomorrow from 1:15 to 3:15 YNiC open plan will be
full with another practical for the masters students. Anyone wanting to
come up early for the seminar would be advised to not come up too early.
Thanks,
Sam
--
Sam Johnson
Science Manager, York NeuroImaging Centre
University of York
http://www.ynic.york.ac.uk
Hi all,
IF YOU USE PRESENTATION IN fMRI PLEASE READ THIS!
We have recently been experiencing issues with the synchronisation of
stimulus code in Presentation with pulses from the scanner. This problem
has been intermittent and inconsistent. As many scans rely on precise
timings by synch-ing with specific pulses from the scanner, we have had
to come up with an alternate solution.
Without boring you with the fine detail, we are using a different port
on the scanner to provide us with the pulse information. After extensive
testing this afternoon, this port seems to give consistent output while
the other does not.
Anyone using pulses from the scanner to synchronise their presentation
stimuli should note the following:
Change "pulses_per_scan" in your scenario header (.sce files) to the
actual number of slices you are acquiring. In the past this has been set
to half the number (e.g. if you were acquiring 38 slices per TR you had
pulses_per_scan = 19). Just to make that clear, YOU SHOULD DOUBLE THE
NUMBER YOU CURRENTLY HAVE IN pulses_per_scan.
N.B. YOU MUST CHANGE THESE NUMBERS WITH IMMEDIATE EFFECT OR YOUR TIMINGS
WILL BE INCORRECT.
Also note that when you run your pulses calibration scan you will now
get twice the number of pulses you got before.
This will not affect your data in any way, it simply means that you are
getting a pulse for every slice from the scanner, rather than every
second slice.
This will work for all TRs, and the back room settings should now be the
same for all researchers.
If you have any queries, please contact me.
Andre'
--
Andre'
************************************************************************
Andre Gouws
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 435327
Fax: +44 (0) 1904 435356
Dear Users
This week Andre Gouws will be giving a presentation on Thursday
afternoon (4-5 pm) in YNiC open plan.
The title of Andre's talk is "Suppressive feedback from the visual
cortex to the LGN: Evidence from negative BOLD".
This presentation will include results and discussion of data presented
at SFN this year, and will conclude with a project presentation for
extension of the current work.
Everyone is welcome to attend and refreshments will be available afterwards.
--
ynic-users mailing list
ynic-users(a)ynic.york.ac.uk
https://www.ynic.york.ac.uk/mailman/listinfo/ynic-users
************************************************************************
Andre Gouws
York Neuroimaging Centre
The Biocentre
York Science Park
Heslington
YO10 5DG
Tel: +44 (0) 1904 435327
Fax: +44 (0) 1904 435356
Dear Users,
just to let you know that due to staff training on the 7th December 2010
the YNiC Open Plan area will be closed to all users on that date between
9am and 4pm.
MRI scanning will be continuing as usual.
Apologies for any inconvenience that this may cause.
Thanks and regards,
Jo.
--
............................
Jo Saunders
Centre Manager
YNiC
The BioCentre
York Science Park
YORK
YO10 5DG
Email: Joanna(a)ynic.york.ac.uk
Tel: (01904) 435343
Fax: (01904) 435356
Tues, Wed & Thurs
.............................
Dear Users
Today (starting at 4 pm) Beth Jefferies from the Department of Psychology
will give a talk on "TMS studies of semantic cognition".
In this talk, Beth will discuss recent studies examining the extended
neural networks underpinning semantic representation and control, talk about
the new equipment that is in the YNiC TMS lab, and describe a planned
study which combines TMS and fMRI to investigate how this brain
network responds to stimulation.
Everyone is welcome to attend.
Best wishes
Rebecca
--
Dr. Rebecca E. Millman
York Neuroimaging Centre
The Biocentre
York Science Park
York
YO10 5DG
Email: rem(a)ynic.york.ac.uk
Tel: 01904 435 5373
Dear Users
This week (4-5 pm) Beth Jefferies from the Department of Psychology will
give a talk on "TMS studies of semantic cognition".
In this talk, Beth will discuss recent studies examining the extended
neural networks underpinning semantic representation and control, talk about
the new equipment that is in the YNiC TMS lab, and describe a planned
study which combines TMS and fMRI to investigate how this brain
network responds to stimulation.
Everyone is welcome to attend.
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
Hello all,
Just a reminder that between 13:15 and 15:15 YNiC open plan will be
pretty much full with the MSc practical, so again, if you were planning
to come up before the seminars you'd be much better off waiting till
they've finished.
Thanks,
Sam
--
Sam Johnson
Science Manager, York NeuroImaging Centre
University of York
http://www.ynic.york.ac.uk
The notice about this afternoon's seminars said that the talks are
project presentations. In fact they are presentations about current
research in Aberdeen and are part of on-going discussions about
potential collaboration between York and Aberdeen.
Gary
--
Gary Green
York Neuroimaging Centre
The Biocentre
York Science Park
Innovation Way
Heslington
York
YO10 5DG
http://www.ynic.york.ac.ukhttps://www.ynic.york.ac.uk/about-us/people/ggrg
tel. +44 (0) 1904 435349
PA (Claire Fox) +44 (0) 1904 435329
fax +44 (0) 1904 435356
mobile +44 (0) 788 191 3004
Dear Users
Today from 4-5 pm in YNiC open plan there will be 3 project proposal
presentations:
i) Prof. David Lurie
"Field-Cycling Magnetic Resonance Imaging"
Contrast between normal and diseased tissue in MRI arises mainly from
differences in relaxation times. It is also well known from in vitro
studies that the variation of T1 with field strength (T1 dispersion)
changes from tissue to tissue, and may also be altered in disease. Thus,
it is potentially useful to be able to measure T1 dispersion in vivo;
however, this information cannot be obtained by conventional MRI
scanners, which operate at fixed magnetic field. We are developing
field-cycling MRI systems, in which the magnetic field is switched
rapidly between levels during the pulse sequence, always returning to
the same field for signal measurement. FC-MRI offers the possibility of
new image contrast mechanisms based on T1 dispersion. In particular,
immobilised proteins give rise to "quadrupole dips" in the dispersion
curve, and this mechanism may give insight into the behaviour (and
misbehaviour) of proteins in disease. This talk will discuss the
methodology, technology and applications of FC-MRI.
ii) Prof. Thomas Redpath
"Dynamic contrast-enhanced MRI in breast cancer".
My talk will cover the basic physiology underlying dynamic
contrast-enhanced MRI, the scanning methods used, and will describe the
pharmaco-kinetic models used in analysing the signal versus time curves
which are seen in breast cancers. The need for arterial input functions
in the newer models will be discussed and a novel approach which we have
proposed will be outlined. The particular problem of scanning at 3
tesla, namely RF pulse angle variation across the body, and methods of
overcoming it will also be covered.
iii) Dr. Hugh Seton
"Ultra-low field MRI with cooled receiver coils and SQUID preamplifiers"
"The presentation will describe MRI developments at 10-20mT. Imaging at
such low fields has the potential to deliver improved contrast compared
to high field, partly because T1 differences between tissues can
increase at low field but also because there is greater flexibility to
employ contrast-enhancing pulse sequences which would exceed RF power
deposition limits at high field. Normally the SNR is poor at low field,
but we have developed cooled receiver coils and ultra-low noise SQUID
preamplifiers that yield 3-6 fold SNR gains compared to conventional
room temperature coils."
Everyone is welcome to attend and refreshments will be available afterwards.
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
Today from 4-5 pm in YNiC open plan, Susanne Weis and Markus Hausmann
will be giving YNiC project proposal presentations.
i) Susanne Weis: "Object location memory: Differences between verbal and
non-verbal strategies during memory encoding and retrieval"
It has repeatedly been shown that the medial temporal lobe (MTL), and
especially the hippocampus, play an important role during memory
encoding and retrieval. Specifically,activation of the hippocampus has
been related to associative and contextual memory and binding of an item
with its context. It is therefore assumed, that the hippocampus
interacts with cortical regions during object location memory (OLM)
tasks, where an object has to be bound to its spatial location. A
variety of studies have shown that men on average perform better than
women in specific aspects of spatial cognition. On the other hand, women
have been shown to be superior in OLM tasks. One explanation which has
been proposed for this findings suggests that women use verbal
strategies during OLM encoding and retrieval, while man rely more on
spatial strategies. It can be assumed that different strategies during
OLM task are linked to different patterns of brain activation. It is the
aim of our study to examine functional connectivity between the
hippocampus and cortical areas during encoding and retrieval of an OLM
task. Further, we intend to find out if inter-individual differences in
strategies result in changes of patterns of brain activation and the
functional connectivity within these networks.
ii) Markus Hausmann: "Sex hormonal effects on the functional
connectivity within and across hemispheres in postmenopausal women"
Previous research in postmenopausal women has shown that hormone therapy
(HT), and estrogen therapy (ET) in particular, affects the functional
brain organization such as interhemispheric integration and functional
cerebral asymmetries (FCAs) (Bayer & Erdmann, 2008; Bayer & Hausmann,
2009a,b; Bayer & Hausmann, 2010). The results suggest that these effects
are mediated by the neuromodulatory properties of estradiol on
intrahemispheric functional networks. Specifically, it seems that
estradiol enhances verbal processing at the expense of visuo-spatial
processing within the right hemisphere. This idea might explain why
several studies found divergent effects of HT on verbal and
visuo-spatial cognition (including verbal and non-verbal memory).
Moreover, estradiol-related effects on FCAs have also been demonstrated
in normally cycling women during hormonal distinct cycle-phases (Weis et
al., 2008). Specifically, this fMRI study found estradiol-related
changes in the interhemispheric inhibition between homotopic areas in
the inferior frontal gyrus of the left and right hemispheres. The
present study is set out to elucidate whether HT-related changes in FCAs
as measured by a verbal and visuo-spatial visual half-field tasks in
postmenopausal women might be subserved by changes in the functional
connectivity between cortical networks within and across hemispheres.
Everyone is welcome to attend.
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
Please note that there will be two YNiC seminars this week; one at the
usual time on Thursday and an additional seminar on Wednesday afternoon.
On Wednesday Dr. Susanne Weis and Dr. Markus Hausmann, from the
University of Durham, will give project proposal presentations from 4-5 pm:
Dr. Susanne Weis: "Object location memory: Differences between verbal
and non-verbal strategies during memory encoding and retrieval"
Dr. Markus Hausmann: ""Sex hormonal effects on the functional
connectivity within and across hemispheres in postmenopausal women"
On Thursday there will be 3 project proposal presentations by Prof.
David Lurie, Prof. Thomas Redpath and Dr. Hugh Seton from the University
of Aberdeen:
Prof. David Lurie: ""Field-Cycling Magnetic Resonance Imaging"
Prof. Thomas Redpath: "Dynamic contrast-enhanced MRI in breast cancer"
Dr. Hugh Seton: "Ultra-low field MRI with cooled receiver coils and
SQUID preamplifiers"
Please see below for further information about each talk.
Everyone is welcome to attend and refreshments will be available afterwards.
Best wishes
Rebecca
*1) Wednesday 10th November *
i) Susanne Weis
"Object location memory: Differences between verbal and non-verbal
strategies during memory encoding and retrieval"
It has repeatedly been shown that the medial temporal lobe (MTL), and
especially the hippocampus, play an important role during memory
encoding and retrieval. Specifically,activation of the hippocampus has
been related to associative and contextual memory and binding of an item
with its context. It is therefore assumed, that the hippocampus
interacts with cortical regions during object location memory (OLM)
tasks, where an object has to be bound to its spatial location. A
variety of studies have shown that men on average perform better than
women in specific aspects of spatial cognition. On the other hand, women
have been shown to be superior in OLM tasks. One explanation which has
been proposed for this findings suggests that women use verbal
strategies during OLM encoding and retrieval, while man rely more on
spatial strategies. It can be assumed that different strategies during
OLM task are linked to different patterns of brain activation. It is the
aim of our study to examine functional connectivity between the
hippocampus and cortical areas during encoding and retrieval of an OLM
task. Further, we intend to find out if inter-individual differences in
strategies result in changes of patterns of brain activation and the
functional connectivity within these networks.
ii) Markus Hausmann
"Sex hormonal effects on the functional connectivity within and across
hemispheres in postmenopausal women"
Previous research in postmenopausal women has shown that hormone therapy
(HT), and estrogen therapy (ET) in particular, affects the functional
brain organization such as interhemispheric integration and functional
cerebral asymmetries (FCAs) (Bayer & Erdmann, 2008; Bayer & Hausmann,
2009a,b; Bayer & Hausmann, 2010). The results suggest that these effects
are mediated by the neuromodulatory properties of estradiol on
intrahemispheric functional networks. Specifically, it seems that
estradiol enhances verbal processing at the expense of visuo-spatial
processing within the right hemisphere. This idea might explain why
several studies found divergent effects of HT on verbal and
visuo-spatial cognition (including verbal and non-verbal memory).
Moreover, estradiol-related effects on FCAs have also been demonstrated
in normally cycling women during hormonal distinct cycle-phases (Weis et
al., 2008). Specifically, this fMRI study found estradiol-related
changes in the interhemispheric inhibition between homotopic areas in
the inferior frontal gyrus of the left and right hemispheres. The
present study is set out to elucidate whether HT-related changes in FCAs
as measured by a verbal and visuo-spatial visual half-field tasks in
postmenopausal women might be subserved by changes in the functional
connectivity between cortical networks within and across hemispheres.
*2) Thursday 11th November *
i) Prof. David Lurie
"Field-Cycling Magnetic Resonance Imaging"
Contrast between normal and diseased tissue in MRI arises mainly from
differences in relaxation times. It is also well known from in vitro
studies that the variation of T1 with field strength (T1 dispersion)
changes from tissue to tissue, and may also be altered in disease. Thus,
it is potentially useful to be able to measure T1 dispersion in vivo;
however, this information cannot be obtained by conventional MRI
scanners, which operate at fixed magnetic field. We are developing
field-cycling MRI systems, in which the magnetic field is switched
rapidly between levels during the pulse sequence, always returning to
the same field for signal measurement. FC-MRI offers the possibility of
new image contrast mechanisms based on T1 dispersion. In particular,
immobilised proteins give rise to "quadrupole dips" in the dispersion
curve, and this mechanism may give insight into the behaviour (and
misbehaviour) of proteins in disease. This talk will discuss the
methodology, technology and applications of FC-MRI.
ii) Prof. Thomas Redpath
"Dynamic contrast-enhanced MRI in breast cancer".
My talk will cover the basic physiology underlying dynamic
contrast-enhanced MRI, the scanning methods used, and will describe the
pharmaco-kinetic models used in analysing the signal versus time curves
which are seen in breast cancers. The need for arterial input functions
in the newer models will be discussed and a novel approach which we have
proposed will be outlined. The particular problem of scanning at 3
tesla, namely RF pulse angle variation across the body, and methods of
overcoming it will also be covered.
iii) Dr. Hugh Seton
"Ultra-low field MRI with cooled receiver coils and SQUID preamplifiers"
"The presentation will describe MRI developments at 10-20mT. Imaging at
such low fields has the potential to deliver improved contrast compared
to high field, partly because T1 differences between tissues can
increase at low field but also because there is greater flexibility to
employ contrast-enhancing pulse sequences which would exceed RF power
deposition limits at high field. Normally the SNR is poor at low field,
but we have developed cooled receiver coils and ultra-low noise SQUID
preamplifiers that yield 3-6 fold SNR gains compared to conventional
room temperature coils."
--
************************************************************************
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
*Assistant or Associate Research Professors, Center for Mind/Brain
Sciences, Trento *
The Center for Mind/Brain Sciences (CIMeC) at the University of Trento
is seeking to fill a number of research positions in cognitive
neuroscience at the Assistant or Associate Research Professor level. The
Center offers an international and vibrant research setting in which to
investigate the functioning of the brain through the analysis of its
functional, structural and physiological characteristics, in both normal
and pathological states. Researchers at the Center make use of
state-of-the-art neuroimaging methodologies, including a research-only
MRI scanner, MEG, EEG and TMS, as well as behavioral, eye tracking and
motion tracking laboratories. The Center also includes a neuropsychology
and neuro-rehabilitation clinic (CERiN). The Center strongly encourages
collaborative and innovative research, and provides the opportunity for
all researchers to access laboratory resources and to be part of the
Doctoral School in Cognitive and Brain Sciences. CIMeC also has close
collaborations with local research centers, including FBK (Fondazione
Bruno Kessler) and IIT (Italian Institute of Technology), through joint
projects and through the doctoral school. Further information about the
Center can be found at: http://www.cimec.unitn.it
<http://www.cimec.unitn.it/>.
The ideal researchers (from all areas of cognitive neuroscience,
including computational neuroscience and neuroimaging methods) must hold
the Ph.D. or M.D. degree, and should have a record documenting research
creativity, independence, and productivity. We are looking for
researchers able to build and maintain a high quality research program
and to contribute to the maintenance of a collegial and collaborative
academic environment.
For more information see attachment.
--
Dr Silke Goebel
Department of Psychology
University of York
Heslington
York YO10 5DD
UK
Tel: +44 (0) 1904 32 2872
Email: s.goebel(a)psych.york.ac.uk
Web: http://www.york.ac.uk/res/crl/sgoebel.html
TMS Lab: http://www.york.ac.uk/res/tms
EMAIL DISCLAIMER http://www.york.ac.uk/docs/disclaimer/email.htm
Hello all,
Just to let people know that between 1:15 and 3:15 this afternoon,
YNiC's open plan will be very busy with the MSc course practical. This
year we're pretty much at capacity so there won't be any spare machines.
Those of you who are coming up for the seminar and thought about coming
early to get a bit of quiet work done, I'm not sure that'll be possible
I'm afraid. Apologies to those who were unable to work last week, for
future reference Thursday afternoons for the next 6 weeks will be
equally busy, though I'll send reminders.
Thanks,
Sam
--
Sam Johnson
Science Manager, York NeuroImaging Centre
University of York
http://www.ynic.york.ac.uk
