051006 Gutkin
The Bernstein Center for Computational Neuroscience Freiburg Announcement for the next
BCCN Seminar
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Dr. Boris Gutkin
Institut Pasteur and Computational Neuroscience Group
Departement des Etudes Cognitives Ecole Normale Supérieure Paris France Role of Gaba Reversal Potential in Control of Synchrony | |
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Thursday, October 6th, 2005 12:15h |
Lecture Hall (ground floor) BCCN building Hansastraße 9A 79104 Freiburg |
| Abstract: Gaba-ergic synapses have been taken traditionally as hyperpolarising in studies of synchrony in cortical circuits. At the same time, GABA-ergic neurotransmission, as it appears early during development is depolarising, and even in the adult it can be partially depolarising or shunting. We address the changes in the GABA reversal potential and such effects on the synchronisation of reciprocally coupled neural oscillators. We develop a theory showing that stability of synchrony vs asynchrony and partial synchrony (phase-delay locking) depends on the reversal and also on the intrinsic spike-generating dynamics of the neurons. We confirm our theory with simulations and find exixtence of clustered states in large scale networks.
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Host: Dr. Clemens Boucsein |
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The talk is open to the public. Guests are cordially invited!
www.bccn.uni-freiburg.de |
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