PSY3051 Lecture Notes - Lecture 2: Retinotopy, Optical Illusion, Extrastriate Body Area
23 Aug 2018
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Week 2 visual processing of info (higher centers) Signals from the retina travel through the optic nerve to the. Lateral geniculate nucleus (lgn: primary visual receiving area in the occipital lobe (striate cortex, and then through 2 pathways to the temporal lobe and the parietal lobe. Major function of lgn is to regulate neural information from the retina to the visual cortex. Signals are received from the retina, the cortex, the brain stem, and the thalamus. Signals are organized by eye, receptor type, and type of environmental information. Each lgn has 6 layers: each layer receives signals from only one eye. Layers 2,3, and 5 receive signals from the ipsilateral eye (right) Layers 1,4 and 6 receive signals from the contralateral eye (left: each eye sends signals to both lgns and the information for each eye is kept separated. Receptive fields of neurons in the visual cortex.
