What is stimulated when light hits the centre-surround of a receptive field

Question

Quizplus · Accepted Answer

The centre-surround of a receptive field is a region of the retina that is divided into two parts: the centre and the surround. The centre is the part of the receptive field that is stimulated by light, while the surround is the part of the receptive field that is not stimulated by light. When light hits the centre of the receptive field, it stimulates the excitatory synapse to the visual cell. This causes the visual cell to fire an action potential, which is then transmitted to the optic nerve.

What Is Stimulated When Light Hits the Centre-Surround of a Receptive