01:830:301 Lecture Notes - Lecture 22: Receptive Field, Complex Cell, Straight Edge
28 Apr 2017
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If you"re keeping the delta t the same, but increasing the distance, then the light/object that crosses the retina would have to move at a faster speed. If you have a greater separation then the light has to travel a larger distance in the same amount of time you altered the ds cell to respond to faster speed. Greater separation between and respond to faster motion. Remember: speed = distance/time decrease delta t responds to faster motion. There are different cells that are selective for: Across the population of these different cells, between them, they cover all possible speeds and all possible directions of motion. If you"re looking at an image that is moving, there are going to be some cell that matches that preferred motion and speed and therefore, that certain cell is going to respond. Apparent motion: you don"t have continuous motion, but it"s a bunch of static frames that have a blank frames in between.
