Event:

Information is represented in the brain in the collective
responses of large populations of neurons. In the early visual system,
coordinated circuits extract correlated features that are transmitted to
the brain over the optic nerve. I will discuss: (a) the overall division
of visual information into separate channels by diverse cell types, (b)
Structural coordination between different cells and cell types, (c)
Adaptive response correlations between ganglion cells, and (d) Circuit
mechanisms for inter-neuronal coordination. Some of these circuit
mechanisms rely on collective effects in populations of coupled neurons,
as I will illustrate via the phenomenon of "lag-normalization" in a
class of directionally-selective retinal ganglion cells.