[BIC-announce] Seminar in Biomedical Engineering - Wednesday April 9th - 1h pm - Room 333

[Christophe Grova]

Dear all, 

We will have our next  Biomedical Engineering seminar today

Wednesday  ­ April 9th,  at 1 pm

Location: Room  333 Lyman Duff Building (Biomedical Engineering Dpt, 3775
University Street).

Speaker:  Alexandre Hutton, Master student under the supervision of Dr A.
Shmuel PhD, BME, McGill University

Since Alexandre is a Master student registered to the course BMDE500 who is
giving this seminar as part of McGill conditions to obtain his M.Sc.,
special attendance from our department (staff and students) is really
expected, in order to give Alexandre feedback on his research studies.

Title: 
"Neurophysiological mechanisms associated with negative BOLD response"


Abstract:
There are a number of ways of measuring neuronal activity, both invasive and
noninvasive. Among the most invasive methods are intracortical electrodes,
which are inserted into the cortex and give a direct measurement of
activity. By contrast, functional magnetic resonance imaging (fMRI) is
completely noninvasive. However, the link between the blood-oxygen
level-dependent (BOLD) signal and the neuronal activity that causes it is
not entirely understood. The link between the negative BOLD (nBOLD) signal
and the underlying neuronal activity is even less well-understood. We elicit
the nBOLD response by first mapping the population receptive field (pRF) and
stimulating the surround. Previous studies have linked surround suppression
with an increase in alpha power (Harvey et al., 2013). Another study by
Olsen et al. (2012) showed that layer 6 modulates the neuronal activity of
upper layers. This project attempts to test a possible connection between
nBOLD and layer-specific neurophysiological activity by using a combination
of fMRI and laminar electrodes in the monkey primary visual cortex.


A list of upcoming seminars can be found at :
http://www.mcgill.ca/bme/news/seminars

See you there 

 
Christophe Grova 

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Christophe Grova, PhD
Assistant Professor
Biomedical Engineering Dpt
Neurology and Neurosurgery Dpt
 
Multimodal Functional Imaging Lab (Multi FunkIm)
Montreal Neurological Institute
Centre de Recherches en Mathématiques
 
Biomedical Engineering Department - Room 304
McGill University
3775 University Street, Montreal, Quebec, Canada,
H3A 2B4 
email : christophe.grova at mcgill.ca <mailto:christophe.grova at mcgill.ca>
tel : (514) 398 2516
fax : (514) 398 7461
 
Web:
http://www.bic.mni.mcgill.ca/ResearchLabsMFIL/PeopleChristophe
http://www.bmed.mcgill.ca/
MultiFunkIm Lab:
http://www.bic.mni.mcgill.ca/ResearchLabsMFIL/HomePage
 
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