Fwd: [Complexity-Science-List] Seminar on neuron-like networks: DynamIC seminar: Natalia Janson (Wednesday, 24 October 2012, 14:00)

[Dimitri Ognibene]

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From: "Ognibene, Dimitri" <d.ogn...@imperial.ac.uk>
Date: Oct 23, 2012 1:14 PM
Subject: Fwd: [Complexity-Science-List] Seminar on neuron-like networks: DynamIC seminar: Natalia Janson (Wednesday, 24 October 2012, 14:00)
To: "dimitri....@gmail.com" <dimitri....@gmail.com>

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Subject: [Complexity-Science-List] Seminar on neuron-like networks: DynamIC seminar: Natalia Janson (Wednesday, 24 October 2012, 14:00)
From: Jensen Henrik Jeldtoft <h.je...@imperial.ac.uk>
To: complexity-science-list <complexity-...@imperial.ac.uk>,"Evans, Tim S" <t.e...@imperial.ac.uk>,"Zachariou, Nicky N" <nicky.za...@imperial.ac.uk>,"Sherman, Edward" <edward.s...@imperial.ac.uk>,"Ghaffari, Peyman" <p.gha...@imperial.ac.uk>,"Arcaute, Elsa" <e.ar...@imperial.ac.uk>,Aste Tomaso <t.a...@ucl.ac.uk>,"Cheang, Seng" <seng.c...@imperial.ac.uk>,Eroglu Deniz <deniz_...@yahoo.com>,Panzarasa Pietro <p.pan...@qmul.ac.uk>,"Christensen, Kim" <k.chri...@imperial.ac.uk>,Schneider Richard <rsfc...@googlemail.com>,"Angeloudis, Panagiotis" <p.ange...@imperial.ac.uk>,Di Matteo Tisiana <tiziana....@kcl.ac.uk>,Expert Paul <paul....@gmail.com>,Wedemann Roseli <rose.w...@gmail.com>,"Jensen, Henrik J" <h.je...@imperial.ac.uk>,Jones Dominic <mrl...@gmail.com>,Broga Kris <kmb...@gmail.com>,"Draief, Moez M" <m.dr...@imperial.ac.uk>,Gastner Michael <mgas...@gmail.com>,"Lai, Desmond" <desmon...@imperial.ac.uk>,Alarcon Tomas <tomas...@gmail.com>,Abdullah Mohammed <mohammed...@kcl.ac.uk>,"Pruessner, Gunnar" <g.pru...@imperial.ac.uk>,"Hess, Ortwin" <o.h...@imperial.ac.uk>,"Gasser, Charlotte" <c.gas...@imperial.ac.uk>,"Gallo, Ignacio A" <i.g...@imperial.ac.uk>,"Loe, Chuan" <c.l...@imperial.ac.uk>,"Wan, Xiaogeng" <x.w...@imperial.ac.uk>,Lambiotte Renaud <renaud.l...@fundp.ac.be>,Espinosa Angela <A.Esp...@hull.ac.uk>,Kumar Rishi <rishi.na...@gmail.com>,Chrisholm Sarah <s.chis...@ucl.ac.uk>,"Giner Baldó, Jordi" <jordi.gin...@imperial.ac.uk>,Viegas Eduardo <eduardo....@uk.pwc.com>,Gonzalez-Avella Juan-Carlos <juanc...@ifisc.uib-csic.es>,"Quah, Wai Kuan" <waikuan...@imperial.ac.uk>,Datta Ari <ari....@baml.com>,"Markou, Nikolitsa" <n.mar...@imperial.ac.uk>,Pereira Tiago <tiagop...@googlemail.com>,"Bhansali, Raj" <r.bha...@imperial.ac.uk>,Ahmad Adrees <adrees...@kcl.ac.uk>,Gani Mahbub <mahbu...@kcl.ac.uk>,"Petri, Giovanni" <g.pe...@imperial.ac.uk>,"Tang, Ho" <ho.t...@imperial.ac.uk>,Peters Ole <o...@santafe.edu>,"Tsinalis, Orestis" <orestis.t...@imperial.ac.uk>,"Parry, Andrew O" <a.o....@imperial.ac.uk>,"Babaee, Arta" <arta.b...@imperial.ac.uk>,Abdul Fatimah Razak <fati...@gmail.com>,"Aquino, Gerardo" <g.aq...@imperial.ac.uk>,Crüts Björn <b.c...@home.nl>,Ergun Guler <ge...@maths.bath.ac.uk>,Thomas Frank <adamfra...@googlemail.com>,"Cairoli, Andrea" <andrea.c...@imperial.ac.uk>,Wang Wetting <wenting...@ucl.ac.uk>,Rahman Shama <rahman...@gmail.com>,Baldock Robert <rjnba...@googlemail.com>
CC:

Please see interesting seminar below.

-----------------------------------------------------
 Henrik Jeldtoft Jensen
 Professor of Mathematical Physics
 Department of Mathematics 

 and

 Leader of the 
 Complexity & Networks Group
 Imperial College London
 South Kensington campus
 London
 SW7 2AZ
 Tel:  +44 (0) 20 759 49853 
 Fax: +44 (0) 20 7594 85 17
 email: h.je...@imperial.ac.uk
 homepage: http://www2.imperial.ac.uk/~hjjens/
 
 arXiv papers: http://arxiv.org/find/cond-mat/1/au:+Jensen_H/0/1/0/all/0/1 
                          http://arxiv.org/find/q-bio/1/au:+Jensen_H/0/1/0/all/0/1
 
 Complexity and Networks programme:   
       http://www3.imperial.ac.uk/complexityandnetworks
 

 

Begin forwarded message:

 

---------- Forwarded message ----------
From: Tiago Pereira <tiago....@imperial.ac.uk>
Date: 23 October 2012 08:19
Subject: DynamIC seminar: Natalia Janson (Wednesday, 24 October 2012, 14:00)
To: imperial-dyna...@imperial.ac.uk


Dear All, 

please notice that this seminar is on Wednesday. 

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DynamIC: Dynamical systems at Imperial College London
http://www2.imperial.ac.uk/~jswlamb/DynamIC
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DynamIC Seminar

Speaker: Natalia Janson (Loughborough University)

Title: Self-organisation and synchronization in stochastic neuron-like networks

Date: Wednesday, 24 October, 2012
Time: 14:00-15:00
Room: Huxley 139

Abstract:

A single neuron is modelled as a highly non-linear dynamical system. Its crucial feature is excitability:  when there is no input, or the input is below a threshold, the neuron is silent, and when the input is above the threshold, the neuron

fires. The noise can play a highly counter-intuitive role in such systems: with the increase of  the amount of noise, the amount of order in the system grows. Thus, the noise-induced spiking in such neurons becomes almost regular at the optimal intensity of the stimulus. Many neurons are coupled together in a network by various means, to model a biological neural network. 

Their collective behavior ranges from independent spiking, through partly and fully synchronised spiking, to the lack of any spiking, depending on the parameters of the coupling. Synchronized spiking in the brain is associated with epilepsy, Parkinsonian disease and tremor, so the ability to eliminate synchronization by non-invasive weak stimulation could be essential in treating such conditions. It appears that in the model of the stochastic neural network it is possible to partly control the collective behavior by a specially constructed feedback.