PSYC 2390 Chapter Notes -Depth Perception, Visual Angle, Thin Lens

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Depth perception: how far away things are in front of you: critical in visual coordination. Visual angle also tells us how far away in depth object is (e. g. if mouse was right in front of us, would take up larger portion in retina) If you see me getting smaller i"m leaving . Dimensional ambiguity: one cue tells us about 2 different things, is this really big or is it just close, is this really small or is it just far away, must determine how far away something is. Ciliary muscles in lens must do something different depending on depth: thick lens close, thin lens far away. Must turn eyes in when things are closer to eye (eye is converging) Eye muscles do this: near cross eyed, far straighten out eye. Look at muscles outside of eye and see if need to turn eye inward or outward. Only helps with depth if object is very close to you.