According to the trichromatic theory, how do we distinguish red from orange?
a. The two colors produce different velocities of action potentials
b. The two colors produce different ratios of responses by types of cones.
c. The two colors produce excitation in different areas of the brain.
d. The two colors produce different durations of response by most of the cones.
b. The two colors produce different ratios of responses by types of cones.
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The percentage of infertility problems that can be traced back to the male is which of the following?
20% 30% 40% 50%
John took two weeks to learn how to tie his shoes. His mom went over each step of the process with him day-by-day, and he learned one step at a time until he could tie his shoes on his own. Kathy also took two weeks to learn how to tie her shoes
However, unlike John, she did not seem to be learning any of the steps day-by-day. Then, all of a sudden, after about two weeks, she tied her shoes all by herself. John's course of development is predicted by the ___, whereas Kathy's course of development is predicted by the ___. a. competent-infant theorists, information-processing theorists b. constructivists, associationists c. stage theorists, information-processing theorists d. associationists, stage theorists