Abstract: There was significant and large decrement of recall according to temporalpresentation order compared with the recall according to shmuli modalities in dualmemory tasks in which the presentation orders of auditory digits and Corsi stimuliwere randomly mixed. There may be two possible accounts for thes decrement: 1,there were many shifts between report-modalities; 2, the relative presentation ordersbetween the modalities were needed. In the present study, two experiments ofalternative--recall were carried out in which the shifts between the modalities weremaximal. However, there was no big decrement of performance. And .the score of therecall of only the order of stimuli modalities was not significantly different from thatof the recall according to the temporal order. It suggested that relative presentationorder may be the main cause.

Key words: working memory and its central executive, dual memory task, shiftbetween modalities, relative presentation order, alternative--recall