Reminder - Today P/L002 1-2PM
The Human Connectome: Linking Brain Network Features to Healthy and
Pathological Information Processing
Monday 9 May 2016, 1.00PM to 14:00
*Speaker: *Professor Marcus Kaiser, Newcastle University
Synopsis
Our work on connectomics over the last 15 years has shown a small-world,
modular, and hub architecture of brain networks [1,2]. Small-world features
enable the brain to rapidly integrate and bind information while the
modular architecture, present at different hierarchical levels, allows
separate processing of various kinds of information (e.g. visual or
auditory) while preventing wide-scale spreading of activation [3]. Hub
nodes play critical roles in information processing and are involved in
many brain diseases [4].
Nonetheless, general observations of human brain connectivity, or of
patients at the group-level, have so far had little impact on understanding
cognition, or deficiencies in cognition, in individual subjects. As a
result, human connectome information is not used as a biomarker for
diagnosis or a predictor of the most suitable treatment strategy. After
discussing the organisation of brain networks, we will show how
connectivity can be used to determine the disease type of individual
dementia patients. An important aspect of these brain networks is their
spatial organisation in terms of the length of fibre tracts and the
location of brain regions [5]. However, simply observing connectivity is
insufficient as small changes in network organisation might lead to large
changes in network behaviour (dynamics) [6]. We therefore show how
simulations can be applied to predict regions that are involved in neural
processes. For epilepsy, simulations show us which regions are involved
[7], which treatment approach should be used, and whether surgical
intervention will be successful or not. We conclude with the role of
simulations in understanding the developmental origin of diseases as
determining these origins will again inform diagnosis and treatment (
http://www.greenbrainproject.org/ ).
These are first steps towards using connectome-based computer
simulations as a tool to understand normal and pathological processing in
individuals. Developing models that are based on anatomical information
will be crucial to define the most suitable intervention [8].
[1] Martin, *Kaiser*, Andras, Young. Is the Brain a Scale-free Network? SfN
Abstract, 2001.
[2] Sporns, Chialvo, *Kaiser*, Hilgetag. Trends in Cognitive Science,
2004.
[3] *Kaiser* et al. New Journal of Physics, 2007.
[4] *Kaiser* et al. European Journal of Neuroscience, 2007.
[5] *Kaiser* et al. PLOS Computational Biology, 2006.
[6] *Kaiser*. Frontiers in Human Neuroscience, 2013.
[7] Hutchings, Han, Keller, Weber, Taylor, *Kaiser*. PLOS Computational
Biology, 2015.
[8] Wang, Hutchings, *Kaiser*. Computational Modelling of Neurostimulation
in Brain Diseases. Progress in Brain Research, 2015.
*Biography*
*Marcus Kaiser* studied biology and computer science at the Ruhr-University
Bochum and the Distance University Hagen finishing with a master degree in
2002. He obtained his PhD, funded by a fellowship from the German National
Merit Foundation, from Jacobs University Bremen in 2005. He is initiator
and co-director of the Wellcome Trust PhD programme in Systems Neuroscience
and leader of the UK INCF Special Interest Group in Image-based
Neuroinformatics. He authored the first major review (Trends in Cognitive
Sciences, 2004; cited 1,300+ times) and more than 50 other publications in
the field of brain connectivity. Research interests are understanding the
link between structure and function by modelling brain development, neural
dynamics, and therapeutic interventions (see
http://www.dynamic-connectome.org/ ).
*Location: *PL002
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Miss Helen Fagan
Graduate Admissions and Demonstrator Coordinator
********************************************
Department of Electronics
University of York
Heslington
York
YO10 5DD
Telephone: 01904 324485
Fax: 01904 323224
Email: helen.fagan(a)york.ac.uk
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