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SUMMARY:Rosalba García Millán (University of Cambridge)
DTSTART:20210113T110000Z
DTEND:20210113T120000Z
DTSTAMP:20260423T004512Z
UID:SIMBa/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SIMBa/3/">Ti
 me-dependent branching processes: a model of oscillating neuronal avalanch
 es</a>\nby Rosalba García Millán (University of Cambridge) as part of Ba
 rcelona Mathematics Informal Seminar (SIMBa)\n\n\nAbstract\nRecently\, neu
 ronal avalanches have been observed to display oscillations\, a phenomenon
  regarded as the co-existence of a scale-free behaviour (the avalanches cl
 ose to criticality) and scale-dependent dynamics (the oscillations) [1]. O
 rdinary continuous-time branching processes with constant extinction and b
 ranching rates are commonly used as models of neuronal activity\, yet they
  lack any such time-dependence. In my talk\, I will show how we extended a
  basic branching process by allowing the extinction rate to oscillate in t
 ime as a new model to describe cortical dynamics [2]. I will discuss about
  some observables\, such as the avalanche shape\, that we calculated in cl
 osed form by means of a perturbative field theory\, and compared to availa
 ble experimental results.\n\n[1] Miller\, Yu & Plenz\, Sci. Rep. 9\, 16403
  (2019).\n\n[2] Pausch\, Garcia-Millan & Pruessner\, Sci. Rep. 10\, 13678 
 (2020).\n
LOCATION:https://researchseminars.org/talk/SIMBa/3/
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