which in turn send impulses along theoptic nerve- a collection of axons thatconnect the eye with the brain.These axons carry visual info encoded as astream of neural impulses to the brain. The collection of rod and cone receptorsmake up the cellsreceptive field of a visual cell- the retinal area that whenstimulated affects the firing of that cell.When receptive fields are stimulated,retinal cells send signals both toward the brain and laterally(sideways) towardnearby visual cells. Visual cells and the retina hae interactive effects on each other.Lateral antagonism – the most basic interatictive effect- occurs when neuralactivity in a cell opposes activity in surrounding cells.Its responsible for theopposite effects that occur when light falls on the inner versus outer portions ofcentre-surrpund receptive fields. It allows the retina to compare the light falling ina specific area against general lighting.127.Describe the routing of signals from the eye to the brain. (p. 136)
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