Chapter 7: Taking Action Flashcards
ecological approach to perception
The best way to study perception is where people move through and interact with the enviornment
ecological validity
an experiment that matches its stimuli, conditions and procedures to those present in the natural world
focus of expansion
the absense of flow at the destination point, where you end up if the flow of movement is not changed
gradient flow
the different speed of flow (fast near the object and slower farther away) in optic flow, used to detrime their speed of movement
invariant information
information that remains constant regardless of what the observer is doing or how the observer is moving
optic flow
when the movement of an observer creates movement of objects and the scene relative to the observer
landmarks
objects on the route that serve as cues to indicate where to turn
self-produced information
When a person makes a movement , that movement creates information, and this information in turn is used to guide further movement
spatial updating
the process by which peopel and animals keep track of their position within a surrounding enviornment while they move
topographical agnosia
a condition defined by an inability to recognize landmarks in real-world enviornments
visual direction strategies
observers keep thier body pointed toward a target
wayfinding
the kind of navigation in which we take a route that usually involves making turns
affordances
information that indicates how an object can be used
border cells
firw when an animal is near the edge of the enviornment
cognitive maps
map in ur brain, rats do it in Tolman’s experiemnt to map the spatial layout of th emaze
