J. Long

Discriminative, Informational, Eliciting, and Contiguous Stimuli as Secondary Reinforcers for Human Subjects

J. Long, 1974 .

The effects of punishment (electric shock) on perceptual learning.

C. M. Solley, H. McNamara, J. Long, 1958, Journal of abnormal psychology.

Elicitation and Reinforcement as Separate Stimulus Functions

J. Long, 1966, Psychological reports.

Secondary Reinforcement as a Function of the Interstimulus Interval: A Confutation

J. Long, R. L. Coberly, 1967, Psychological reports.

Learning without response under two conditions of external cues.

E. L. Wike, H. McNamara, J. Long, 1956, Journal of comparative and physiological psychology.