Poster: "Maximum entropy constraints on spike correlations in a neuronal ensemble"

LISANDRO MONTANGIE; MARIELA PORTESI; FERNANDO MONTANI

Huerta Grande

Congreso; Congreso Sociedad Argentina de Investigación en Neurociencias 2012; 2012

The nature of the neural code has been a matter of debate during the last three decades. The sensory information in the brain can be carried by action potentials (spikes), and be packaged, for instance, through a simple counting code, within the temporal structure and / or through the correlations between spikes. In the framework of a perturbative expansion for short time windows, we formally estimate correlations between action potentials for a set of neurons under the principle of maximum entropy. This formalism will allow us to investigate within information geometry the role of fundamental constraints in the neural code when considering short time windows.