Retinal Direction Selectivity Is Reversed by Visual Stimulation скачать в хорошем качестве

Retinal Direction Selectivity Is Reversed by Visual Stimulation

A classic neural computation is that of detecting the direction of motion of an object within the visual scene. Direction-selective cells in the retina respond strongly to an image moving in the preferred direction and weakly to an image moving in the opposite direction. This computation relies upon an asymmetric set of connections between inhibitory neurons onto direction selective cells as well as non-linearities in the cells themselves. In this video, we describe our recent result that a short visual stimulation can reverse the directional preference of a direction-selective retinal ganglion cell. These results indicate that dynamic circuit interactions can overcome an anatomical bias and change the ultimate computation performed by a neural circuit. For more details, see Rivlin-Etzion et al., Neuron 76(3).