Gains and coworkers used fMRI to measure brain activation for perception and imagery of objects. Their results showed :
A). there is no difference between the activation caused by perception and by imagery.
B). perception and imagery activate the same areas in visual cortex, but imagery activates more of the frontal lobe than perception does.
C). perception and imagery activate the same areas of the frontal lobe, but imagery activates more of the visual cortex than perception does.
D). perception and imagery activate the same areas of the frontal lobe, but perception activates more of the visual cortex than imagery does.