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How do sensory receptor pairs work?
Some neurons are turned on by red and off by green, etc.
Frequency
Number of wavelengths in a given time
Opponent-Process Theory
Sensory receptors in the retina come in pairs
What are the sensory receptor pairs in the retina?
Red/green, yellow/blue, black/white
What is the present solution for color vision?
There are 2 stages - trichromatic theory happens first, then signals are processed by opponent-process cells on their way to the visual cortex
Light/dark adaptation
Pupils dilating
What can we hear?
Pitches corresponding to the human voice, volume, variations
What is the measurement for pitches corresponding with the human voice?
20Hz - 20kHz
What is the stimulus input for hearing?
Sound waves
What are sound waves?
Jostling molecules in the air
1 Hz
1 wave cycle per second
What does frequency determine?
Pitch
Amplitude
Height of a wave
What does amplitude determine?
Volume