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Title: The Role of Excitatory and Inhibitory Coupling in Networks of Spiking Neurons
Abstract: Complex networks’ theory is a powerful tool that allow us to investigate in a unified way different real world systems composed by a large number of interacting units linked via complex interconnections. For example, in biology different ensembles of neurons connected by synapses coordinate their activity to perform mental functions, in technology large computer worldwide networks linked by cables and optical fibers exchange data-packets, and in modern social sciences professional and social relations are maintained via LinkedIn, Facebook, Instagram, TikTok and other networks. In such systems, the synapses strengths may vary in weight as well as in sign, being supportive (excitatory, positive) or repressive (inhibitory, negative). We will concentrate on investigating the role of excitatory and inhibitory synapses on networks of interacting neurons operating at the highly nonlinear spiking regime. Particular attention will be paid on the influence of the synapses’ properties in the network synchronization. Along these lines, applications in brain dynamics will also be discussed.
Dr Astero Provata
Speaker
Dr Astero Provata
Research Director
Statistical Mechanics and Complex Dynamical Systems Laboratory
Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos"
Dr. Provata obtained her BA in Physics from the University of Athens in 1985 and her MSc (1987) and PhD degrees (1991) from Boston University. After completing her PhD, she held a 4-year postdoctoral position at the Université Libre de Bruxelles (group of Prof. G. Nicolis). In 1995 she jointed NCSR "Demokritos", as Researcher C (Junior Researcher, 1995-1999) and as Researcher B (Senior Researcher, 1999-2003). Since 2003 she holds the position of Researcher A (Research Director).
In 2004 she established the "Statistical Mechanics and Complex Dynamical Systems Laboratory” (StatDyn-Lab) which conducts basic and applied research in the fields of Non-linear Dynamics, Statistical Physics and Complex Systems with applications in the domains of Brain Dynamics, Complex Networks, Bioinformatics, Reactions-Diffusion Systems, Fractals and Long Range Correlations.
Between 2009-2014, she acted as founding member and first coordinator of the Complex Systems and Applications (COSA) Network, a multidisciplinary network of Greek scientists working in the field of Complex Systems. She is the author/coauthor of ~120 publications in peer reviewed journals, 25 publications in conference proceedings and book chapters and is editor to 6 collected volumes.
She has more than 160 invited presentations in international conferences, universities and academic institutes. She has organized/co-organized 12 international conferences and workshops. She has supervised 9 PhD theses, 15 MSc theses and numerous BSc theses.
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