Topic: stabilized supralinear model

Neurons in primary Visual Cortex (V1) have a receptive field (RF) or "center", the region in visual space in which appropriate stimuli drive the neuron to fire. Stimuli surrounding the RF modulate these responses, a phenomenon known as contextual modulation. Here we consider 3 types of contextual modulation: i) classical surround suppression: the response of cells in V1 decreases when the stimulus size is increased beyond the RF size; ii) inverse surround suppression: neurons in layer L2/3 –but not layer L4– of mouse V1 respond to a lack of contrast in their RF when the surround is filled with