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KEY CONCEPTS IN COGNITIVE PSYCHOLOGY Perceptual processes:

KEY CONCEPTS IN COGNITIVE PSYCHOLOGY Perceptual processes: attention, signal detection, size constancy, schema. Selective Attention Registering or focusing upon a particular stimulus while rejecting other stimuli. Capacity Attention

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KEY CONCEPTS IN COGNITIVE PSYCHOLOGY Perceptual processes:

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  1. KEY CONCEPTS IN COGNITIVE PSYCHOLOGY Perceptual processes: attention, signal detection, size constancy, schema

  2. Selective Attention Registering or focusing upon a particular stimulus while rejecting other stimuli. Capacity Attention Some upper limit on the number of stimuli that can be registered at once.

  3. VOLUNTEER NEEDED To pick up a couple of piles of magazines

  4. Close your eyes, and raise your hand when you hear the volume go up or down.

  5. Signal detection Our perception of a stimulus is determined by our sensory sensitivity and our response bias. The more important a stimulus is to us, the more attention we pay to it. Weber’s Law: k=I2-I1/I1 (usually 0.2)

  6. The law of size constancy Visual clues from the environment help us determine the size of an object, relative to the size of objects near it.

  7. Connect these dots using 5 lines, without lifting your pen(cil) from the paper. . . . . . . . . .

  8. Now do it using only 4 lines, without lifting your pen(cil) from the paper. . . . . . . . . .

  9. Complete the anagram! When you’re done, compare your results with a partner.

  10. SchemaA mental structure (or model or network or representation) of expectations, beliefs, knowledge, patterns ... basically, a structure of information for objects, actions, people, and abstract concepts

  11. fixedness This is an example of a schema ... it is “the inability to use/do something familiar in an unfamiliar way.” In other words, our expectations about how the thing should be used/done interfere with newer, or more novel uses.

  12. References Illusion Works. (n.d.) Visual Illusion 1-3. Retrieved 21 February from: <http:// psylux.psych.tudresden.de/i1/kaw/divers es%20Material/www.illusionworks.com/h tml/ames_room.html>.

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