PSY280H1 Chapter Notes - Chapter 2: Photic Sneeze Reflex, Pupillary Light Reflex, Ciliary Muscle

• School: UTSG
• Department: Psychology
• Course: PSY280H1
• Professor: Mathiasnemeier

Document Summary

When you emerge from a dark room into bright light, not only does your pupil constrict but there a good chance that you will sneeze. The longest journey through the eyeball 80% of the internal volume of the eye. Presbyopia: old sight, the loss of near vision because of insufficient accommodation. To focus on a distant star on the retina, the refractive power of the four optical components of the eye must matched to the length of the eyeball continue. P ganglion cell : a small ganglion cell that receive excitatory input from single midget bipolar cells it nhe central retina and feeds the parvocellular layer of the lateral geniculate nucleus. 70 p cell in human retina: m ganglion cell: a ganglion cell resembling a little umbrella that receive excitatory input from diffuse bipolar cells and feeds the magnocellular layer of the lateral geniculate nucleus. Spreads much more than p ganglion cell = more umbrella like.