The Bernstein Center Freiburg

Informal Seminar
Rodrigo Roberto Bammann

University of Warwick, Coventry, UK
Estimating information transmission in ribbon synapses from hair cells from cochlea
Thursday, December 10, 2009
11:00 h sharp
Library, first floor
BCCN Building
Hansastr. 9a
Researchers have modelled the response that occurs in ribbon synapse due to different signals. The release of vesicles after a sound stimulus in hair cells follows a binomial distribution, where the mean quantal content is attributable to a change in the number of readily available vesicles stored to be readily released, instead of the probability of its release. We developed a model proposed by Richardson to model multivesicle release in ribbon synapses. It has been found out that there is a linear correlation between the numbers of vesicles released by a hair cell as the intensity of sound increases.

Information theory is used to estimate the information flow in the model, which then allows the estimate of the efficiency of information processing. The model proposed is relevant to data acquired in future research.
The talk is open to the public. Guests are cordially invited!