Fly Vision: Neural Mechanisms of Motion Computation

Fly Vision: Neural Mechanisms of Motion Computation

A wide range of novel approaches are being used to dissect the visual system of the fly, both the neural networks of motion detection and the performance of these networks under complex natural stimulus conditions.

Modelling Fly Motion Vision

Afterimages in fly motion vision

Afterimage-like effects modulate the responses of fly wide-field motion-sensitive cells following adaptation to stationary or slowly moving patterns. The origin of these afterimages is unclear. They have been interpreted as either the result of adaptation in the early visual system or as a direct consequence of the correlation scheme of motion detection. Using a combination of intracellular rec...

Dynamic Adaptation in Fly Motion Vision

Sensory neurons process and convey information about our surroundings, providing the physiological basis for how we interact with the external world. In order to understand neuronal responses we must identify the rules governing how sensory information is encoded. It was proposed more than fifty years ago that neural codes constitute efficient representations of the natural world (Attneave, 195...

Examination of fly motion vision by functional fluorescence techniques.

Over the past years, classical electrophysiological approaches to elucidate the functioning of nerve cells have been complemented by functional optical methods, in particular fluorescence imaging. This review illustrates how optical methods have proved helpful in the analysis of the neuronal principles underlying visual motion processing in the fly, a model system which allows physiological inv...