Researchers have conducted studies on a variety of vision-like processes that are unfamiliar to the general public. This research demonstrates that a mental image has roughly the same effect that an actual visual stimulus has,
for example, in producing the masking effect. On the basis of this research, we can conclude that
a. demand characteristics probably cannot explain the results.
b. the propositional-coding explanation is likely to be correct.
c. visual imagery is stronger than auditory or motor imagery.
d. experimenter expectancy consistently influences the research on mental imagery.
Question 2
Your textbook discusses research showing that people have better acuity for mental images that are visualized in the center of the retina, rather than in the periphery of the retina. The reason that this research is significant is that
a. it offers strong support for the propositional approach to mental images.
b. it demonstrates that the previous imagery research had been influenced by experimenter expectancy.
c. the research is similar to the results obtained when people perceive actual visual stimuli.
d. it demonstrates that individual differences in visual imagery are actually very small.
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