PSYC 2240 : Bio Basis Ch 6

• School: York University
• Department: Psychology
• Course: PSYC 2240
• Professor: Pauline Charlton

Document Summary

Vision: we are not able to see everything, we can only see things when rays of light strike our retina perpendicularly. The eye and its connections to the brain: pupil: the center of the iris where light enters the eye. The light is centered by the lens (adjustable bc of the ciliary muscles) and the cornea (not adjustable; outside protection of pupil) Retina: where the light is projected onto and is lined with the visual receptors. Light coming from the left half of the world, will strike the right half of the retina and vice versa; similarly light coming from the top will strike the bottom of the retina. Route within the retina: once the light hits the retina receptors, it then travels to the bipolar cells (near center of eye) and then is sent to the ganglion cells (even closer to the centre).