01:146:245 Lecture Notes - Lecture 6: Lateral Geniculate Nucleus, Retina, Occipital Lobe

• School: Rutgers University
• Department: Cell Biology and Neuroscience
• Course: 01:146:245
• Professor: Professor Wilhelms

Document Summary

~individual neurons in lateral geniculate nucleus are monocular, receive input from only one eye. ~two ventral layers (1, 2) called magnocellular because big cells. ~four dorsal layers (3, 4, 5, 6) called parvocellular because small cells. ~the ganglions that project to m layer vs. p layer are also accordingly large/small cells. ~m ganglion cells project to layers 1, 2 of lgn. ~p ganglion cells project to layers 3, 4, 5, 6 of lgn. ~retinogeniculate pathway has parallel magnocellular and parvocellular streams going to cortex. ~m ganglion cells have larger receptive fields, faster conductance on axons. ~m ganglion cells respond to a visual stimulus momentarily, p ganglion cells have a sustained response. ~p ganglion cells can give info on color, m ganglion cells can"t. ~nasal side of retina projects to layers 1, 4, 6. Goes to contralateral side of lgn w. r. to eye. ~temporal side of retina projects to layers 2, 3, 5.