If we have a spot of light hitting the center of the ON center receptive field of a retinal ganglion cell, will the LGN neuron be activated? Will the V1 neuron be activated? I mean its receptive field looks different, see the image below. I am just so confused on what the receptive field of an LGN and V1 neuron even means. In other words, how is the receptive field of the retinal ganglion cell related to or how does it affect the receptive field of the LGN neuron?
If light shines in the center of the ON center LGN neuron receptive field that is not in the receptive field of the ganglion cell, then the LGN neuron is activated and the ganglion cell is not. How does that work? How can it skip a stage? Does not the RGC first need to get activated for the LGN neuron to get activated?
Since a V1 neuron to get activated for example needs a shine of light that is 45 degrees diagonal to the right, will it get activated if only a spot of light is shone to the ON of the ON center retinal ganglion cell? This RGC is connected to the V1 neuron is it not?
In conclusion, I think that I am confused in why is the ganglion cell connected to the LGN cell, which is connected to the V1 cell, when they all have different receptive field. What does the connection bring about?
Thanks sm in advance!