Unit 2: Cognition Flashcards
bottom-up processing & when do we use it?
starts at the sensory receptors & then works up to the higher brain for processing
- we use this when we’re unfamiliar w/ a setting
top-down processing & when do we use it?
constructs perceptions from the sensory input by drawing on experience & expectations
- we use this when we know what to expect from a setting
Selective attention
this is when your awareness is focused on a particular detail of your experience.
- this explains why multitasking isn’t always feasible.
Cocktail party effect
ability to concentrate on 1 voice amongst a crowd
Inattentional Blindness
our conscious awareness only picks up a small part of the visual information around us
Change Blindness
a form of inattentional blindness in which people fail to notice changes in their environment
Perceptual Set
a mental predisposition that acts like a lens through which we view & interpret the world around us.
Schemas (learned concepts)
help us organize & make sense of new information based on our past experiences (like a folder)
Gestalt psychology
a psychological approach that emphasizes that we often perceive the whole rather than the sum of the parts
Figure & Ground
the perceptual task of distinguishing an object (the figure) from its surroundings (the ground)
Proximity
grouping nearby figures together
Closure
filling in gaps to create a complete, whole object
Continuity
perceiving smooth, continuous patterns rather than discontinuous ones
What does depth perception help us with?
to know exactly how far away 2 items are from each other.
- likely an innate ability
Binocular depth cues
clues about distance based on the differing views of the two eyes
Retinal disparity
a binocular cue for perceiving depth by comparing images from the retinas in the 2 eyes.
The greater the disparity (difference) between the two images, the closer the object.
What do we depend on to judge whether a person is 10 or 100 meters away?
monocular cues
Phi phenomenon
when we assume there’s motion when there isn’t
Stroboscopic movement
the illusion of continuous movement that’s experienced when we view a series of slightly varying still images
- ex: flip book, strobe lights
Autokinetic effect
when we stare at a still spot of light in a dark room & due to how our eyes naturally move, it makes the light seem like its moving
Metacognition (meaning beyond cognition)
is thinking about thinking.
Retinex theory
explains how our brain adjusts colors based on surrounding light, allowing us to perceive consistent colors even when lighting changes.
Prototype
mental image or best example of any category
Assimilation
when we take in new experiences & interpret them to our current understanding.