Past Seminars

Here is the list of our past seminars:


Romain Brette (Institut de la Vision, UPMC). ENS-ESPCI Biophysics Seminar - Romain Brette (Institut de la vision, UPMC)

Friday 10 March 2017 from 13:00 to 14:00

Neuronal geometry and excitability

Most theoretical studies on neural excitability have dealt with either
isopotential membranes, for example the space-clamped squid axon, or
homogeneous axons. However, in most vertebrate neurons, action
potentials are initiated in a small region of the axon, the axonal
initial segment (AIS), packed with sodium channels and placed very
close to the soma. Thus there is a spatial discontinuity in channel
properties and geometry (large soma, thin axon). In addition, both the
length and position of the AIS can vary with activity. In this
presentation, I will show how neuron and AIS geometry impact the
initiation of action potentials and their backpropagation to the soma.






Recent seminars  (0)


Romain Brette (Institut de la Vision, UPMC). ENS-ESPCI Biophysics Seminar - Romain Brette (Institut de la vision, UPMC)

Friday 10 March 2017 from 13:00 to 14:00

Neuronal geometry and excitability

Most theoretical studies on neural excitability have dealt with either
isopotential membranes, for example the space-clamped squid axon, or
homogeneous axons. However, in most vertebrate neurons, action
potentials are initiated in a small region of the axon, the axonal
initial segment (AIS), packed with sodium channels and placed very
close to the soma. Thus there is a spatial discontinuity in channel
properties and geometry (large soma, thin axon). In addition, both the
length and position of the AIS can vary with activity. In this
presentation, I will show how neuron and AIS geometry impact the
initiation of action potentials and their backpropagation to the soma.






Seminar archive  (219)


Top



See also...

Practical Informations

Our weekly biophysics seminar is co-organized with colleagues at ENS and ESPCI. The audience is mainly composed of physicists with a deep (...) 

> More...

Register our newsletter

Justo grâvida vel facîlisis çurcus porta non dapidûs c’est dictumst sét vel pulvîar vulputate orci sét litoré, aliquet classé lacus facîlisis pérès £at (...) 

> More...