PSY 3120 Lecture Notes - Lecture 5: Hermann Von Helmholtz, Max Wertheimer, Likelihood Principle
9 May 2016
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Visual perception: intuition tells us that seeing is like a camera. Infinite regress problem: if image begets image, then understanding never happens. Perception depends on experiences (ambiguous pictures: what you see depends on what you were exposed to. ) Hermann von helmholtz (1867: we see, not just with our eye, but with our brain. Likelihood principle: when the visual point of view is ambiguous, we will see what is most likely to be the true state. Perception involves making assumptions about what is where (and where it might be going). Max wertheimer (1912): apparent motion, when you see one dot at one time, and then another dot at a different location later, you assume the dot moved (at the right speed). Principles: good continuation: points group together when they form a line or smooth curve. Physical regularities: properties of the environment create recurring visual information that is correlated with object properties. Objects closer to the horizon are farther away.
