2.1-2.4 Cognition Flashcards
focusing conscious awareness on a particular stimulus
selective attention
failing to see visible objects when our attention is directed elsewhere
inattentional blindness
failing to notice changes in the environment; a form of inattentional blindness.
change blindness
a mental predisposition to perceive one thing and not another
perceptual set
Three factors that affect our interpretation of stimuli
Context, Motivation, and Emotion
An organized whole, psychologists emphasized our tendency to integrate pieces of information into meaningful wholes
Gestalt
the organization of the visual field into objects that stand out from their surroundings
figure-ground
the perceptual tendency to organize stimuli into coherent groups
grouping
the ability to see objects in three dimensions, although the images that strike the retina are two-dimensional; allows us to judge distance
depth perception
a laboratory device for testing depth perception in infants and young animals
visual cliff
a depth cue, such as retinal disparity, that depends on the use of two eyes
binocular cue
a cue to nearby objects’ distance, enabled by the brain combining retinal images
convergence
a binocular cue for perceiving depth. By comparing retinal images from the two eyes, the brain computes distance - the greater the disparity between the two images, the closer the object
retinal disparity
a depth cue, such as interposition or linear perspective, available to either eye alone.
monocular cue
an illusion of continuous movement experienced when viewing a rapid succession of slightly varying still images
stroboscopic movement
an illusion of movement created when 2 or more adjacent lights blink on and off in quick succession
phi phenomenon
the illusory movement of a still spot of light in a dark room
autokinetic effect
perceiving objects as unchanging even as illumination and retinal images change
perceptual constancy
perceiving familiar objects as having a consistent color, even if changing illumination alters the wavelengths reflected by the object
color constancy
the ability to adjust to changed sensory input, including an artificially displaced or even inverted visual field
perceptual adaptation
all the mental activities associated with thinking, knowing, remembering, and communicating
cognition
cognition about our cognition, keeping track of and evaluating our mental processes
metacognition
a mental grouping of similar objects, events, ideas, or people
concept
a mental image or best example of a category
prototype
a concept or framework that organizes and interprets information
schema
interpreting our new experiences in terms of our existing schemas
assimilation
adapting our current schemas to incorporate new information
accomodation
the ability to produce new and valuable ideas
creativity
narrowing the available problem solutions to determine the single best solution
convergent thinking
expanding the number of possible problem solutions; creative thinking that diverges in different directions
divergent thinking