01:830:301 Lecture Notes - Lecture 4: Axon Terminal, Auditory Cortex, Visual Cortex
31 Jan 2017
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Set up task so there"s always a right answer so we can code their responses on every trial as. We can use color, but we can also use shape, flash of words, etc simplest thing to do is to use left/right (flash light on left/right side of the screen) -forces them to choose either one. 2afc task (means two alternative forced choice task) What if they don"t see anything because it"s lower threshold. (when no one sees anything and you force them to guess 50% each side for two options, 25% for four options. Doctrine of specific nerve energies (johannes muller) one neuron in auditory cortex and one in visual cortex. Neurons aren"t very different, some may be in the visual cortex while another may be in the auditory cortex. If someone stimulates a neuron in the visual cortex, you will see something. What matters is which nerves are stimulated, not how they are stimulated: lesion studies (neuropsychology)
