Psychology / Unit 4 Psych 0441 short lesson, about 20 seconds
Smell
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The idea
Smell is the transduction of airborne chemicals by receptors whose signals reach the cortex without passing through the thalamus.
In practice
A smell triggers a vivid memory faster and more strongly than a matched photograph does.
Where people slip
Smell's direct route to emotional and memory structures is why it behaves unlike the other senses.
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