research has occurred to designate a specific neural correlate of imagery; however, studies show a multitude of results. most studies published before 2001 suggest neural correlates of visual imagery occur in brodmann area 17. auditory performance imagery have been observed in the premotor areas, precunes, and medial brodmann area 40. auditory imagery in general occurs across participants in the temporal voice area (tva), which allows top-down imaging manipulations, processing, and storage of audition functions. olfactory imagery research shows activation in the anterior piriform cortex and the posterior piriform cortex; experts in olfactory imagery have larger gray matter associated to olfactory areas. tactile imagery is found to occur in the dorsolateral prefrontal area, inferior frontal gyrus, frontal gyrus, insula, precentral gyrus, and the medial frontal gyrus with basal ganglia activation in the ventral posteriomedial nucleus and putamen (hemisphere activation corresponds to the location of the imagined tactile stimulus). research in gustatory imagery reveals activation in the anterior insular cortex, frontal operculum, and prefrontal cortex. novices of a specific form of mental imagery show less gray matter than experts of mental imagery congruent to that form. a meta-analysis of neuroimagery studies revealed significant activation of the bilateral dorsal parietal, interior insula, and left inferior frontal regions of the brain.