Held’s answer to the second question is couched in terms of the reafference theory: subjects adapt to ORDs only when they have relearned the sensory consequences of their bodily movements. In the case of adaptation to lateral displacement, they must relearn the way retinal stimulations vary as a function of reaching for targets at different body-relative locations. This relearning is assumed to involve an updating of the mappings from motor output to reafferent sensory feedback in the hypothesized "correlational storage" module mentioned above.