Unit 2- Cognition Flashcards
Schema
a cognitive framework or mental structure that helps individuals organize and interpret information based on past experiences
Size Constancy
We perceive objects as having a constant size, even when our distance from them varies
Shape Constancy
We perceive the form of familiar objects as a constant even while our retinal image of it changes
Closure
We fill in gaps to create a complete, whole object. Thus we assume that the circles are complete but partially blocked by the triangle. Add nothing more than little line segments that close off the circles and now your brain stops constructing a triangle.
Constancy
Unchanging and constant in perception, shape, or size.
Cocktail Party Phenomenon
Your ability to attend to only one voice among many. An example of selective attention.
Perception
The process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.
Retinal Disparity
Retinal disparity is defined as the way that your left eye and your right eye view slightly different images. Retinal disparity is important in gauging how far away objects are. The more difference (or greater disparity) between the image each eye has of the same object, the closer it is to you.
Convergence
The muscles of the eyes send signals to the brain as they move, the more they converge (turn inward toward each other), the closer an object must be.
Figure-ground
The organization of our visual field into objects (figure) and their surroundings (ground).
Proximity
When we group nearby figures together
Linear perspective
The eyes sense of depth and distance perception
Relative size
A perceptual clue that allows you to determine how close objects are to an object of known size.
Brightness Constancy
We perceive an object as having a constant lightness even while its surrounding lighting.
Top-down processing
refers to how our brains make use of information that has already been brought into the brain by one or more of the sensory systems.
Interposition
If one object partially blocks our view of another, we perceive it as closer. (Depth Cue)
Texture Gradient
The distortion in size which closer objects have compared to objects farther away.
Bottom-up processing
Analysis of sensory information that begins with our sensory receptors (details) and works its way up to the brain’s integration of the sensory information
Similarity
Grouping principle that says we group similar objects together
Monocular cues
Depth cues like interposition and linear perspective that can be detected by either eye (or both).
Binocular cues
Depth cues like retinal disparity that require the use of both eyes
Perceptual set
a mental predisposition or readiness to perceive stimuli in a particular way based on past experiences, expectations, beliefs, and context
Inattentional Blindness
the phenomenon where someone fails to notice something directly in their visual field because their attention is focused on something else, essentially “missing” something obvious due to their concentration being elsewhere
Gestalt Psychology
a school of thought that emphasizes how the brain perceives the “whole” of a stimulus as more important than its individual parts