Question 1
Helmholtz's explanation of color vision is called the ________.
◦ opponent-process theory
◦
additive color mixing theory
◦ trichromatic theory
◦ reductive color mixing theory
Question 2
If a person hears a tone of 300 Hz, three groups of neurons take turns sending the message to the brain-the first group for the first 100 Hz, the second group for the next 100 Hz, and a third for the next 100 Hz. This principle is known as the ________.
◦ place theory
◦ volley theory
◦ frequency theory
◦ rotational theory