Answer is Option B: it is harder to manipulate mental images than perceptual images.
Explanation:
Mental imagery means pictures in the mind or what one is visualizing. Mental imagery is caused by mental images in the mind of a person. But it is different from perceptual images (images from perception) because mental images occur when there is no external stimuli.
Images from perception are a result of some external stimuli. So, Option B is the most apt answer from the given options. Both do not share same brain mechanisms as per option A. Nor Imagery is more stable than perception as per option C. Imagery doesn't occur automatically as per option D.
