Perception Flashcards
(51 cards)
What is perception?
Perception is how we interpret or make sense of the sensory information that we receive.
What are the two main theories of perception?
- Gibson’s direct theory of perception
- Gregory’s constructivist theory of perception
What is sensation?
Information we receive through the senses is known as a sensation.
What is transduction?
The process by which sensory organs detect information from the environment and convert it into electrical signals.
What is the difference between bottom-up and top-down processes in perception?
- Bottom-up process: Perception based solely on information received by the eyes
- Top-down process: Perception influenced by expectations and prior knowledge
What are monocular depth cues?
Depth cues that can be used with one eye to perceive distance, including height in plane, relative size, occlusion, and linear perspective.
What are binocular depth cues?
Depth cues that require two eyes, including convergence and retinal disparity.
What is height in plane?
A monocular depth cue where objects further away appear higher in the visual field.
What is relative size?
A monocular depth cue where closer objects appear larger than those further away.
What is occlusion?
A monocular depth cue where one object overlaps another, indicating that the overlapping object is closer.
What is linear perspective?
A monocular depth cue involving parallel lines converging at a vanishing point to indicate depth.
What is convergence?
A binocular depth cue that detects differences in eye muscle focus when viewing objects at different distances.
What is retinal disparity?
A binocular depth cue comparing the two slightly different images received by each eye to judge distance.
What is motion parallax?
The effect where objects closer to us appear to move faster than those further away when we are in motion.
What does Gibson’s direct theory of perception propose?
We perceive using the information received through our senses, which is sufficient for understanding the world.
What is an ecological theory of perception?
Gibson’s theory that perception evolved to help organisms interact effectively with their environment.
What is visual perception?
The process of interpreting visual information received by the eyes.
What is a visual illusion?
A phenomenon where visual perception is misled, causing us to see something inaccurately.
What is ambiguity in visual illusions?
When an image can be interpreted in multiple ways, leading to confusion in perception.
What is the Ponzo illusion?
An illusion where two lines appear to be different lengths due to the influence of linear perspective.
What is the Müller-Lyer illusion?
An illusion where two lines of equal length appear different due to the orientation of arrowheads at their ends.
What is the Rubin’s vase illusion?
An example of ambiguity where an image can be seen as either a vase or two profiles.
What is the Necker Cube?
An ambiguous figure that can be perceived from multiple perspectives.
What is the Kanizsa triangle?
An illusion where a triangle is perceived to be present even though it is not explicitly drawn.