The origin of pattern information of an apparently moving object during stroboscopic motion

The differential contribution of the two flashed stimuli to pattern aspects of the appar-ently moving object during stroboscopic motion is examined. It is found that metacontrast masking of one of the stimuli abolishes that stimulus’ influence on pattern completely, while not interfering with motion information of the same stimulus. Thus, good motion still occurs, but the apparently moving object has pattern characteristics of the unmasked stimulus only.