Chapter 4 Flashcards
Figure
A region of an image that is perceived as being a part of an object
Image clutter
A characteristic of visual scenes in which many objects are scattered in 3d space, with partial occlusion of various parts of objects by other objects
Ground
A region of an image that is perceived as part of the background
Border ownership
The perception that an edge or border is owned by a particular region of the retinal image
Perceptual grouping
The process by which the visual system combines separate regions of the retinal image that “go together” based on similar properties
Perceptual interpolation
Process by which the visual system fills in hidden edges and surfaces in order to represent the entirety of a partially visible object
Edge extraction
The process by which the visual system determines location, orientation, and curvature of edges in the retinal image
Uniform connectedness
Which simply means that the regions of the retinal image have approximately uniform properties
Edge completion
The perception of partially hidden edge as complete; one of the operations involved in perceptual interpolation
Illusory contours
Nonexistent but perceptually real edges perceived as a result of edge completion
Surface completion
The perception of a partially hidden surfaces complete; one of the operations involved in perceptual interpolation
Perceptual inference
In vision, the interpretation of a retinal image using heuristics
Grandmother Cell
A neuron that responds to a particular object at a conceptual level, firing in response to the object itself, a photo of it, it’s printed name, and so on
Modular coding
Representation of an object by a module, a region of the brain that is specialized for representing a particular category of objects
Distributed coding
Representation of objects by patterns of activity across many regions of the brain.
