PSYCH 2E03 Lecture Notes - Ganglion Cell, Receptive Field, Retina

• School: McMaster University
• Department: Psychology
• Course: PSYCH 2E03
• Professor: Gautam Ullal

Document Summary

Lgn recap large diameter neurons in the lgn are seen in layer 1 and 2: magnocellular fibres small diameter neurons are found in the 3, 4, 5 and 6th layers of the lgn: parvocellular fibres. Receptive field of m & p cells of lateral geniculate body. M cells- magnocellular large size, large field. P cells parvocellular small size, small field. Ganglion cells connected with m cell pathway. Ganglion cells connected with p cell pathway. Distribution of m & p cell-pathways in the retina. Distance from fovea, as they go away from fovea there are more magnocellular fibres closer to the fovea there is a high density of parvocellular fibres. Electrodes were implanted into lgn: colour related or movement. Dorsal layers responded to colour related stimuli type i: show best response to red/green stimuli type ii: show more response to blue/yellow type ii: mostly broad band of wavelength (poor colour sensitivity)