PSYCH 1XX3 Lecture Notes - Prosopagnosia
1 Apr 2014
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Document Summary
Magno and parvo cells: first, magno and parvo cells in the retina transduce the light stimulus into a neural impulse detecting changes in brightness, as well as motion and depth, magno cells are found mainly in the periphery of the retina and are used for, parvo cells are found throughout the retina, and are important for detecting color, pattern and form. These ganglion cells with their small receptive fields are the crucial first step to object recognition from the retina the axons of these cells exit the eye via the optic nerve, travel to the lgn and end up in the primary visual cortex in the occipital lobe: we have learned in the a lot in the last 50 years or so about the type of features that cells in the primary visual cortex are responsive to, what is most striking is that cells are very particular about what will make them fire, and these cells are called feature detectors.
