Frankl believes that one must suffer to attain the deeper meaning of life

Modern cognitive psychologists have demonstrated that

a. behaviors based on mental images can be objectively measured. b. the experience of imagery can be shared. c. the ability to recognize images cannot be studied objectively. d. dualism is the most useful approach to the mind-body problem. e. structuralism was a more viable approach than functionalism.

The opponent-process theory of color vision contends that color vision is a result of

a. lateral inhibition on the retina itself. b. lateral inhibition in the visual cortex. c. calculation of differences in the firing rates of three types of retinal cells. d. competition between three types of rods and three types of cones.