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
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