The Bernstein Center Freiburg

Informal Seminar
Matthias Dold

Bernstein Center Freiburg

Extending BCM plasticity
to lateral recurrent networks

After 30 years of existence, the rate dependent plasticity rule postulated by, Bienenstock, Cooper and Munro is one of the most successful theoretical concepts in neuroscience. A multitude of experiments regarding binocularity and receptive field building in visual cortex can readily be explained by the BCM paradigm. This involves selectivity of single neurons towards their input channels and leads to feature detection within the set of inputs. However, prior applications of the BCM paradigm only involve feed-forward settings. Considering the idea of driving a small lateral network to various fixed points of its adjacency matrix, which changes dynamically due to BCM plasticity, the question is addressed, whether exterior manipulation of neuronal activity can lead to a persistent change in the lateral system. In the talk the BCM paradigm is introduced and its most common applications are described. Furthermore, small coupled systems are investigate by analytical and numerical means. Finally, a learning procedure possible of changing connection strength of neighbouring neurons, within a lateral lattice, is presented.

Monday, July 21, 2014

10:00 h
BCF Library
First Floor
Hansastr. 9a
The talk is open to the public. Guests are cordially invited!