D. D. Powers

Fractionating choice: A study on reward discrimination, preference, and relative valuation in the rat (Rattus norvegicus).

H. C. Cromwell, Joshua M. Ricker, J. D. Hatch, 2016, Journal of comparative psychology.

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H. C. Cromwell, Joshua M. Ricker, J. D. Hatch, 2022 .

Emotion and relative reward processing: An investigation on instrumental successive negative contrast and ultrasonic vocalizations in the rat

H. C. Cromwell, E. S. Webber, D. D. Powers, 2014, Behavioural Processes.