Event:

Perception is not simply the passive analysis of sensory data, it involves modeling the external world, making inferences about predictable events, and noting when something unexpected happens. I will discuss three neural circuits, one involved in worm chemotaxis, one in fly olfaction, and one in electrosensation in fish, that illustrate important steps along the pathway from sensation to perception. I will also discuss a network model that illustrates the interpretative and predictive elements of perception.