PSYC 303 Lecture Notes - Lecture 5: Visual Cortex, Illusory Contours, Fusiform Face Area
29 Oct 2017
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So what pathway goes from primary visual cortex, and passes through temporal lobe and passed through frontal lobe. Many cells dedicated to processing contours in the primary visual cortex and w/i any part of the visual field. Once you get to about beyond 30degrees of tilt, that neuron will stop firing however, there will be other neurons tuned to different degreed tilts. So this orientation selectivity allows system to pick up the info and then put together these contours to form objects. So system takes info that is present and tries to make it make sense: gestalt principles of good figures: applies to illusory contours. So if there is a basic feature that distinguishes one set of items from another, it becomes easy to tell them apart. But if they"re not, and theres a conjunction or if youre looking at a specific relationship b/w the items, it becomes harder to see the boundary b/w them.
