Ernest A. Lumsden

Object orientation as a dimension of stimulus generalization

Ernest A. Lumsden, Michael R. Pullen, M. R. Pullen, 1970 .

The salience of the vertical dimension in the concept of “bigger” in five- and six-year-olds

Ernest A. Lumsden, Barbara W.-S. Poteat, E. Lumsden, 1968 .