Barnhart, R. & Glenberg, A. (1990). Extension of the picture-superiority effect over multiple lists. Bulletin of the Psychonomic Society, 28 (1), 1-3).

In general, pictures are freely recalled better than words, but results of a pilot experiment indicated that this picture-superiority effect diminished with successive lists. We report here an experiment in which we investigated how the diminution over lists would respond to manipulation of rate of presentation and list length. Although the diminution over lists did not replicate, the experiment serves to extend the generality of the picture-superiority effect.