The use of hemi-imagery for studying brain asymmetries in image generation

To learn if there are brain asymmetries for image generation we asked 50 right-handed normal subjects to image one-half of an object and to report which half (right or left) they saw. We found that these subjects were more likely to image the right half of objects than the left. We also found that right hemi-imagers demonstrated a greater degree of right-handedness than did left hemi-imagers. Our results suggest that in strongly right-handed subjects the left hemisphere is more adept at object image generation than is the right hemisphere.