Here we address the following questions:
- Where are action potentials initiated in cortical pyramidal cells? (Answer: axon initial segment!)
- How does intitiation of spikes in the axon influence the variability and reliability of spike intiation in these cells?
- How does initiation of spikes in the axon influence the appearance of spikes in the cell body and dendrite?
- What are the functional consequences of axonal initiation of action potentials?
The visual system calculates visual information through both brute force with millions of neurons, and through a number of short cuts, extrapolations, and self regulating mechanisms. These non-linearities in the visual system can be illustrated with visual illusions. Here, we will illustrate some of the features of the visual system that are related to those which we are currently investigating.