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Chapter 4 - Perception Flashcards

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694755974Sensationsimple stimulation of a sense organ.Physical energy in the world.
694755975Perceptionthe organization, identification, and interpretation of a sensation in order to form a mental representation.Neural energy in the brain.
694755976Top-Down Processingwhat is perceived is largely determined by perceiver knowledge, expectations, goals, etc.
694755977Bottom-Up Processingwhat is perceived is largely determined by the features of stimuli reaching the sense organs.
694755978How is Multitasking related to Top-Down Processing?Multitasking can generate top-down processing conflicts as your mind actively tries to focus on important information.
694755979Sensory Adaptationsensitivity to stimulation tends to decline over time—as we adapt to current conditions.
694755980How can Autism and Sensory Adaptation be related?Some have suggested that autistics might not experience "sensory adaptation" in the usual sense—without reducing the typical sensory input, they can experience sensory overload
694755981Perceptual ConstancyA perceptual principle stating that even as aspects of sensory signals change, perception remains consistent.
694755982Change BlindnessFailure to perceive changes in the environment.
694755983PsychophysicsMethods that measure the strength of a stimulus and the observer's sensitivity to that stimulus.
694755984Signal Detection Theoryone's response to a stimulus depends on sensitivity to it in the presence of "noise" and on decision rules.
694755985HitStimulus Present and Stimulus Detected.
694755986MissStimulus Present and Stimulus Not Detected.
694755987False AlarmStimulus Not Present and Stimulus Detected.
694755988Correct RejectionStimulus Present and Stimulus Not Detected.
694755989Perceptual Organizationinvolves separating an object from its surroundings
694755990Similarityregions similar in color, lightness, shape, or texture are perceived as belonging to the same object
694755991Proximityobjects that are close together tend to be grouped together
694755992Common Fateelements of a visual image that move together are perceived as parts of a single moving object
694755993Continuityedges or contours that have the same orientation tend to be perceptually grouped together
694755994Closurepeople fill in missing elements of a visual scene, allowing perception of edges separated by gaps as belonging to complete objects
694755995Individualisma set of cultural expectations that "prioritize" individuals over groups
694755996Collectivisma set of cultural expectations that "prioritize" groups over individuals

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