Unit 2 Flashcards
Cognition (87 cards)
Cognition
Mental activity associated with thinking, knowing, remembering, and communication.
Perception
Mental process of organizing sensory input into meaningful patterns.
Able to process 1-10 million bit of info per second.
Bottom-up Processing
Begin with stimulus, simulus influence what we perceive; data driven.
(process stimuli first and analyze later)
Top down processing
Uses background knowledge to influence perception; theory driven.
(Starts with memories, experiences, and motivations)
Context (Top down processing)
Cues around stimuli that help give meaning.
Expectations (Top down processing)
Preconceived ideas of what will happen.
Cultural Effects (Top down processing)
Not all culture (subculture) receive stimuli the same.
Perceptual set
top-down processing where we are programed to perceive one thing over another based on a
collection of experiences, expectations and motivations.
(Quickly see stimuli)
Schemas
mental framework that helps us organize and interpret information.
(Build on one another)
Gestalt Psychology
School of thought that focuses on how the brain processes whole patterns rather than one stimuli.
Figure and ground perception
Figure is what we focus on; ground is the background stimuli.
Closure
We fill in missing pieces.
Proxmity
We see lines in 3 sets rather than 6 lines.
Similarity
We group similar shapes.
Attention
an interaction of sensation and perception that is affected by both internal and external factors
(Ability to flip between multiple task)
Selective Attention
Focusing on one stimuli
Cocktail party effect
ability to focus/filter out a particular stimulus amongst many.
Inattentional Blindness
focusing on one stimuli so intensely that we miss other stimuli.
Change Blindness
inability to see changes in the environment because focus is elsewhere.
Depth Percption
Being able to see the world in 3D
(Visual Cliff)
Binocular Depth Cues
the use of both (bi) eyes to help judge depth and distance
Retinal Disparity
difference between images projected to the retina
Convergence
merging and comparing of the visual stimuli by both retina by the brain.
(higher convergence = Smaller)
Monocular Depth Cues
depth perception cues
that only require one eye