What is top-down processing?
Top-down processing is the influence of higher-level knowledge and expectations on how sensory information is analyzed.
Study 4 Top-Down Processing in Perception with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
What is top-down processing?
Top-down processing is the influence of higher-level knowledge and expectations on how sensory information is analyzed.
What does bottom-up processing use to build recognition?
Bottom-up processing builds recognition from features in the stimulus, such as edges, colors, and sounds.
How do top-down and bottom-up processing work together?
Top-down processing uses prior knowledge and expectations to guide interpretation; it works together with bottom-up sensory evidence.
How can prior expectations speed recognition?
Expectations narrow possible interpretations and direct attention toward useful features, which can make recognition faster.
What happens when sensory evidence conflicts with an expectation?
Expectations help resolve ambiguity, but unexpected or strong sensory evidence can lead us to revise an initial guess.
What is a context effect in perception?
Context effects occur when surrounding information influences how a target is perceived.
How can a familiar scene aid object recognition?
A familiar setting suggests which objects are likely to be present, making an object easier to recognize.
How can perception organize a partly hidden shape?
When a shape is partly hidden, perceptual organization can lead people to perceive it as a complete object.
What does attention do in perception?
Attention prioritizes some parts of the sensory environment for closer processing.
What two kinds of influences can guide attention?
Attention can be guided by stimulus properties, such as a sudden bright flash, and by top-down goals, such as searching for a friend in a red coat.
How do expectation and attention differ?
Expectation concerns what is likely to be present; attention concerns what is prioritized for processing.
Why can unattended information be harder to recognize?
Because attention is limited, unattended information may be processed less thoroughly, making recognition harder.
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