PSYB51H3 Lecture Notes - Sine Wave, Ganglion Cell, Spatial Frequency
Document Summary
Saq: the retina processes information similar to a computer. Describe some of the functions of the pathways. In which important way does retinal information differ from that of a usual computer? ( the ganglion cells differentiate borders to emphasize the difference of shapes, depending on which part of the cell is being stimulated) Lateral pathways and vertical pathways: vertical starts at photoreceptors to ganglion to bipolar cells to other parts of the cell, lateral pathways include amacrine and horizontal cells. Vertical pathway passes on the information from the retina to other parts of the cell. Lateral pathway involved in lateral inhibition; interconnect neighbouring bipolar cells laterally in a way that inhibits. Ex// one photoreceptor stimulated by one photon of light will inhibit the periphery which gives rise to the center-surround receptive fields of ganglion cells. Lateral inhibition is what lateral pathway is for, which leads to the center-surrounds.