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39 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Sensation |
Info into signal |
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Sense |
Info/signal converter |
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Perception |
Signal intepretation |
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Representation |
Identified signal knowledge |
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Memories and experiences |
Identify familiar objects |
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Perception disciplines |
Physics/Chemistry/Cognition/Neuroscience/ComputerScience/AI/Biomedical/Radiology/Philosophy |
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Distal Stimuli |
Objects produces info |
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Proximal Stimuli |
Info picked up |
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Transduction |
Info/signal conversion process |
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Neural Code |
Signal knowledge |
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Additional senses |
Body,pain, temp, balance, movement |
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Psychophysics |
Study of perception |
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Thresholds of perception |
Absolute, jnd |
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Scaling of perception |
Different intensities scale experience |
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Absolute threshold |
Min detection intensity |
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Difference Threshold JND |
Min detect difference |
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Method of Adjustment |
Quick,dirty,sound style |
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Method of constant stimuli |
Not efficient, buffet style |
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Staircase method |
Step up/down |
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Weber's Law |
JND = ki |
K is constant, I is intensity |
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Weber's Constant |
K, depends on sense |
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Psychophysical scaling |
Relationship: intensity and perceived intesity |
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Fechner' law |
Perceived intensity = k(ln(i/io)) |
S is perceived intensity, io is absolute threshold |
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Steven's law |
Perceived intensity = ci^n |
C is constant depend on s and n, n depends on sense |
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Action potential |
activates neurons, activated by Na+ |
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Action potential also |
Reverses membrane potential |
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Neural signals |
Neurons use dendrites and axons |
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Nerve |
Axon bundle travels through NS |
NS is nervous system |
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Membrane potential |
Diff. Concentration out and in ions |
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Volted Gated iok channels |
Changes membrane potential |
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Depolarization |
K+ leaves |
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Synapse |
Gap |
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Presynaptic membrane |
Axon terminal membrane |
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Postsynaptic membrane |
Dendrite membrane |
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Synaptic vesicle |
Acton terminal neurotransmitter sacs |
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Receptor |
Neurotransmitter synapse receiver |
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Resting rate |
-70mV |
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Threshold |
-55mV |
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AP Process |
Rest, Stimulus, depolarization, AP, repolarization, refractory, rest |
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