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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Sensation
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detecting physical energy from the environment and encoding it as neural signals
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Perception
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selecting, organizing, and interpreting our sensations
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Transduction
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conversion of one form of energy into another. In sensation, the transformation of stimulus energies into neural impulses
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Receptor cells
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a neuron that directly responds to a physical stimulus.
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(such as light, vibrations, or aromaic molecules)
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Anatomical coding
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interpreting the location and type of stimulus according to which incoming nerve fibers are active
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Temporal Coding
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which system (eyes/ears) and which receptor cells in each system
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Weber fractions
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to be perceived as different, two stimuli must differ by a certain percentage and not a certain amount
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Psychophysics
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study of how physical energy relates to our physical senses
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(what stimuli can we detect?)
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Just-noticeable difference
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the minimum difference a person can detect between any two stimuli half the time
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Threshold
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a point at which a stimulus, or a change of intensity of a stimulus can just be detected
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Absolute threshold
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minimum stimulation required to detect a particular stimulus.
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Signal detection theory
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when we will detect weak signals, measured by our ration to miss and hits. When our bias comes in.
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ROC curve
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a graph of hits or false alarms of a patient. Indicates peoples ability to dtect certain stimulus
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