A neuron with a centre-surround receptive field structure is tested with different patterns of input stimulation: 1 - the centre is stimulated by green light and the surround by red light 2 - the centre is stimulated by red light and the surround by green light 3 - both the centre and surround are stimulated by uniform intensity red light 4 - both the centre and surround are stimulated by uniform intensity green light Write down the number corresponding to the above condition that will generate: the minimum response from a red on/green off colour-opponent retinal ganglion cell:? the maximum response from a V1 double-opponent cell with R+/G- centre and G+/R- surround:? the maximum response from a red on/green off colour-opponent retinal ganglion cell:? the maximum response from a red off/green on colour-opponent retinal ganglion cell:?