Mental imagery can result from both voluntary and involuntary processes, and although it comprises simulation or recreation of perceptual experience across all sensory modalities,[REF][REF] including olfactory imagery,[REF] gustatory imagery,[REF] haptic imagery,[REF] and motor imagery [REF].
In experimental and cognitive psychology, researchers have concentrated primarily on voluntary and deliberately generated imagery, which the participant or patient creates, inspects, and transforms, such as by evoking imagery of an intimidating social event, and transforming the images into those indicative of a pleasant and self-affirming experience.