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Visual Imagery I
Representation of Images - Behavioral Data
Question | Answer |
---|---|
Describe Anderson & Bower's propositional view. | Single representation system in which we store both verbal and visual information as propositions. |
What are propositions? | Abstract, language-like in form |
What would Anderson & Bower consider imagery to be? | Epiphenomenal |
Example of propositional view | anchor is attached to front deck. Cabin is behind front deck. |
What is analog code? | Code that resembles the physical object; visual-spatial representation. |
What is symbolic code? | Code that is descriptive; propositional representation. |
What is the debate about how visual-spatial information is represented? | Analog code vs. Symbolic code |
How can we resolve the visual-spatial debate? | Functional equivalence studies |
What are Functional Equivalence Studies? | Mental rotation studies, Image scanning studies, Image scaling studies. |
Describe Shepard & Metzler (1971) Mental Rotation Studies. | Asked Ss if geometrical objects shown at different orientations were the same. Results showed that there is a direct linear relationship between reaction time & amount of rotation required. |
Describe Kosslyn et al. (1978) Image Scanning Studies. | Ss memorized the map, and then were asked to mental "travel" from one landmark to another on a blank map, then respond when arrived. Results showed that it takes longer to scan longer geographical distances. |
Describe Kosslyn (1978) study about Image Scaling. | If Ss picture a rabbit sitting next to an elephant, the mental image is going to be relatively small compared to having Ss form a mental image of a rabbit sitting next to a fly. There is functional equivalence between real object perception & mental ima |
Kosslyn would argue that visual-spatial information is represented is what way? | Analog Code |