A Neuron for Velocity Detection Based on Inhibitory Mechanism in Retina Ganglion

For mammals, motion direction detection is of great significance. There are specific ganglion cells in the retina to process movement information. In the retina system, cells of the different types perform different computation in different places of the visual field. Very few parts of them are figured out. For example, the processing mechanism of velocity information is unclear. Developing a good modeling of velocity neurons is very important to many different research fields. In this paper, we propose a neuron for velocity detection based on inhibitory mechanism in retina ganglion. We show that there are velocity detective neurons in the nervous system. Different speed information is processed by different speed detection neurons which has been confirmed to exist. We use them to detect different levels of velocity in one dimension. To verify the validity of the proposed mechanism, we conduct a series of experiments which show that this model can successfully detect the movement speed of objects in one-dimension.