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10 Cards in this Set
- Front
- Back
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Differ between sensation and perception |
Sensation: sensing the presence of a stimulus (flash of a light, smell, sound) Perception: the minds interpretation of the incoming sensory information (brain's interpretation) |
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Does perception happen in one step? |
no, involves a complex process of biological processes Stimulus Neural Activity Experience Action Knowledge With these cards: Stimuli Receptor Processes/Transduction Neural Processing Behavioural Responses |
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In the Stimulus stage (name 2 stimuluses), what are 2 things that occur? |
1) Environmental stimulus occurs -anything in the environment we can potentially perceive -any modality (light, sound, touch, taste, smell) Attended stimulus -the stimulus that we pay attention to (there is many potential stimuli than our nervous system can process at any given moment) 2) Light is reflected and transformed |
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What is the principle of transformation and the principle of representation? When do they occur? |
POT- stimuli and responses created by stimuli are transformed, or changed between the environmental stimulus and perception POR- everything a person perceives is not based on direct contact with stimuli but on representations of stimuli that are formed on the receptors and on activity in the person's nervous system |
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What are sensory receptors? In the receptor processes/transduction stage, what occurs? What is transduction? |
Sensory receptors- cells specialized to respond to environmental energy with each sensory system responding to a specific type of energy Sensory transduction- sensory stimuli influence receptors which code the stimulus in terms of electrical signals Transduction- transformation of one energy to another |
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What occurs in the Neural Processing stage? What part of the brain is the primary receiving area? |
Neurons transmit signals from receptors to the brain-these signals are changed as they are transmitted Cerebral cortex occipital lobe-vision temporal lobe- hearing parietal lobe- skin senses frontal lobe- receives signals from all senses |
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What occurs in the Behavioural Responses stage? What is visual form agnosia? |
Perception: conscious awareness of the tree Recognition: placing an object in a category Action Visual form agnosia: inability to recognize objects |
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Which part is responsible for perception and which part responsible for recognition? |
Perception: receptors and primary sensory regions Recognition: higher order brain areas |
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What is the nervous systems most important function? |
Using sensory info to initiate proper motor outputs (vision may have evolved primarily to guide our actions) |
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What is knowledge in the context in which we're speaking? Bottom up vs. top down |
Any information that the perceiver brings to a situation that may influence perception Bottom up- info acquired through incoming sensory info Top down- processing based on prior knowledge or experience |
