Visual Knowledge
Visual Imagery
Mind's Eye
Use mental pictures
Introspection
Pictures in head
Varying levels of detail
Translation step causes confound
Chonometric studies
Speed of image judgements
Can think in paragraphs or images
Image scanning - move through image at constant rate
Scanning in size change, rotation
Demand Character do not add confound
Perception/Imagery interaction
Visualizing/perceiving draw on same mechanisms
In the Brain
Visual areas used
Motion areas for imagined motion
Detail increases use
Disruption studies
TMS disrupts imaging
Neglect syndrome ignores half of imagination
Spatial images vs visual
Blind have same scanning times as sighted
Spatial moves objects, visual sees details
Visual imagery uses visual regions
Spatial use different regions
Differences
Details visual
Navigation spatial
Visual imagery skill varies
Can visualize vividly or poorly
Eidetic imagery
"Photographic memory"
Rare, often confused for mnemonics
Images not pictures
Percepts - mental rep of stimuli percieved
Visual images more like percepts
Images not neutral, instead set
Long term visual memory
Images stored as files
Spatial knowledge uses symbolic/propositional code
Images improve memory
Image mnemonics
Interacting concepts in image improve memory
Dual Coding
Image memory similar to long term
Also influenced by "should be" schema
Boundary Extension
Image memory different system in short term, but very linked to long term