Cognitive Psychology

I.                   Thresholds and Signal Detection Theory

A.   Illusions and other examples of constructive vision

1.                 Examples

a.      Subjective Contours

b.     Necker Cube

c.     Old/Young Woman

d.     Gestalt Illustrations

2.                 What do these examples imply about how we see the world?

B.   Thresholds

1.                 Describe a threshold

2.                 Here is and example of how a method to determine a threshold

3.                 What does this theory imply about the role of cognition in Perception?

C.   Signal Detection Theory

1.                 What does this theory say about the role of cognition in basic sensory processes?

4.                 Is there a threshold according to this theory?  Can you demonstrate that issue with the tutorial?  How?

6.                 Receiver Operating Characteristic

D.   Comparison of the two methods