PSYC 2390 Chapter Notes - Chapter 4: Prosopagnosia, Visual Cortex, David H. Hubel
11 Apr 2016
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Document Summary
The need for organization is especially important in the visual system because of the tasks the visual system faces. One of the main tasks is to process info about various characteristics. Spatial organization refers to the way stimuli specific locations in the environment are represented by activity (when someone looks out at a scene, there are objects left, right, high, and low. Retinotopic map: the mapping of visual input from the retina to neurons, particularly the neurons involved with the visual stream. Cortical magnification: refers to the fact that the number of neurons in the visual cortex responsible for processing the visual stimulus of a given size varies as a function of location of the stimulus in the visual field. Brain imaging refers to a number of techniques that result in images that show which areas of the brain are active (e. g. positive emission tomography and fmri)
