is a piece of equipment typically used in memory experiments which ensures only one piece of data (such as a picture or number) can be viewed at once by the participant.

MEMORY DRUM: "Normally found in memory studies, a memory drum will ensure that the participant can only visibly see one item."
Cite this page: N., Pam M.S., "MEMORY DRUM," in, April 7, 2013, (accessed October 17, 2021).