Graduate Students in Behavior Analysis at USU

Ryan D. Ward (4th year)
BS: Utah State University, 2002
MS: Utah State University, 2005

Interests:
Drug effects and temporal discrimination, conditioned reinforcement, stimulus control of simple and complex discriminations, behavioral momentum, the matching law and choice.

• Odum, A. L., & Ward, R. D. The effects of morphine on the production and discrimination of interresponse times. Journal of the Experimental Analysis of Behavior, 82 , 197-212.
• Ward, R. D., & Odum, A. L. The effects of morphine on temporal discrimination and color matching: General disruption of stimulus control or selective effects on timing? Manuscript accepted for publication.
• Ward, R. D., Bailey, E. M., & Odum, A. L. Effects of d-amphetamine and ethanol on variable and repetitive keypeck sequences in pigeons . Manuscript under preparation.
• Podlesnik, C. A., Jimenez-Gomez, C., Ward, R. D., & Shahan, T. A. Resistance to change of operant responding maintained by immediate, briefly-delayed, and longer-delayed reinforcement . Manuscript in preparation.
• Ward, R. D., Packer, R., & Odum, A. L. (2005, May). Effects of amphetamine on temporal discrimination: Position versus symbolic matching-to-sample procedures . In A. L. Odum (Chair), Effects of amphetamine on timing . Symposium conducted at the 31st annual meeting of the Association for Behavior Analysis, Chicago, IL.
• Bailey, E. M., Ward, R. D., & Odum, A. L. (2005, May). Differential effects of amphetamine and ethanol on variable and repetitive behavior . Poster presented at the 31st annual meeting of the Association for Behavior Analysis, Chicago, IL.
• Podlesnik, C. A., Jimenez-Gomez, C., Ward, R. D., Eyre, M. M., & Shahan, T. A. (2005, May). The response-reinforcer relation in resistance to change, effects of immediate, briefly-delayed, and longer-delayed reinforcement . Poster presented at the 31st annual meeting of the Association for Behavior Analysis, Chicago, IL.
• Ward, R. D., & Odum, A. L. (2004, May) The effects of morphine on the discrimination of subject-produced and experimenter-imposed durations . Paper presented at the 30th annual meeting of the Association for Behavior Analysis, Boston, MA.

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Corina Jiménez-Gómez (3rd year)
Licenciatura: Universidad Católica Andrés Bello (Caracas, Venezuela), 2002
MS: Utah State University, 2005

Interests:
Experimental analysis of behavior, behavioral pharmacology, behavioral momentum, relation between resistance to change and preference, quantitative models of choice, drug self-administration, observing behavior, conditioned reinforcement, and drug-associated cues.

• Shahan, T. A., Podlesnik, C. A. & Jimenez-Gomez, C. Sensitivity to Relative Conditioned Reinforcement Rate without Changes in Primary Reinforcement Rate . Manuscript submitted for publication.
• Podlesnik, C. A., Jimenez-Gomez, C., Ward, R. D., & Shahan, T. A. Resistance to Change of Operant Responding Maintained by Immediate, Briefly-delayed, and Longer-delayed Reinforcement . Manuscript in preparation.
• Jimenez-Gomez, C., & Shahan, T. A. (2005, May). Resistance to change of ethanol self-administration: Effects of behavioral and pharmacological disruptors. In A. Odum (Chair), Ethanol self-administration . Symposium conducted at the 31st annual meeting of the Association for Behavior Analysis, Chicago, Illinois.
• Jimenez-Gomez, C., Podlesnik, C. A., & Shahan, T. A. (2005, May). Sensitivity to relative conditioned reinforcement rate without changes in primary reinforcement rate . Poster session presented at the annual meeting of the Society for the Quantitative Analysis of Behavior, Chicago, Illinois.
• Podlesnik, C. A., Jimenez-Gomez, C., Ward, R., Eyre, M. M., & Shahan, T. A. (2005, May). The response-reinforcer relation in resistance to change: Effects of immediate, briefly-delayed, and longer-delayed reinforcement . Poster session presented at the 31th annual meeting of the Association for Behavior Analysis, Chicago, Illinois.
• Shahan, T. A., Podlesnik, C. A., & Jimenez-Gomez, C. (2004, July). Observing, attending, behavioral momentum, and the matching law. In R. Pitts (Chair), Celebrating B.F. Skinner's 100th Birthday: Conditioned Reinforcement . Symposium conducted at the 112th annual meeting of the American Psychological Association, Honolulu, Hawaii.
• Jimenez-Gomez, C., Burke, K. A., & Shahan, T. A. (2004, May). Alternative non-drug reinforcement decreases drug-maintained responding but increases resistance to change . Poster session presented at the 30th annual meeting of the Association for Behavior Analysis, Boston, Massachusetts.
• Jimenez-Gomez, C. & Vargas-Irwin, C. (2001, May). Multiple schedule performance differences between Wistar Kyoto and Spontaneous Hypertensive Rats . Poster session presented at the 27th annual meeting of the Association for Behavior Analysis, New Orleans, Louisiana.

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Christopher A. Podlesnik (3rd year)
BA: West Virginia University, 2002
MS: Utah State University, 2005

Interests:
Experimental analysis of behavior; Testing the boundaries of behavioral-momentum theory, the matching law, and conditioned reinforcement; The role of instructions in behavior.

• Podlesnik, C. A. & Chase, P. N. (in press). Sensitivity and strength: Effects of instructions on resistance to change. The Psychological Record .
• Shahan, T. A. & Podlesnik, C. A. (in press). Rate of conditioned reinforcement affects observing rate but not resistance to change. Journal of the Experimental Analysis of Behavior .
• Shahan, T. A., Podlesnik, C. A., & Jimenez-Gomez, C. Choice is sensitive to relative conditioned reinforcement rate in the absence of changes in primary reinforcement rate . Manuscript submitted for publication.
• Podlesnik, C. A., Jimenez-Gomez, C., Ward, R. D., & Shahan, T. A. Resistance to change of operant responding maintained by immediate, briefly-delayed, and longer-delayed reinforcement . Manuscript in preparation.
• Podlesnik, C. A. & Shahan, T. A. (2005). An investigation of the response-reinforcer relation in resistance to change of operant behavior . Symposium presented at the 31st Annual Association of Behavior Analysis Convention, Chicago, IL.
• Podlesnik, C. A., Jimenez-Gomez, C., Ward, R. D., Eyre, M. M., & Shahan, T. A. (2005). The response-reinforcer relation in resistance to change: Effects of immediate, briefly-delayed, and longer-delayed reinforcement . Poster presented at the 31st Annual Association of Behavior Analysis Convention, Chicago, IL.
• Podlesnik, C. A. & Shahan, T. A. (2005). Resurgence as a function of the stimulus-reinforcer relation . Poster presented at the annual meeting of the Society for the Quantitative Analyses of Behavior, Chicago, IL.
• Podlesnik, C. A. & Chase, P. N. (2004). Rule-governed behavior and insensitivity to contingencies: The role of behavioral momentum . Symposium presented at the 30th Annual Association of Behavior Analysis Convention, Boston, MA.

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Ericka Bailey (2nd year)
BA: University of New Hampshire, 2002

Interests:
Experimental analysis of behavior, behavioral pharmacology, drug self-administration, reinstatement, and the effects of drugs on variable behavior.

• Bailey, E. M., Ward, R. D., & Odum, A. L. (2005). Differential effects of amphetamine and ethanol on variable and repetitive behavior . Poster presented at the 31st Annual Association of Behavior Analysis Convention, Chicago, IL.

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Ana Amelia L. Baumann (2nd year)
MA: Universidade de Brasilia, 2002

Interests:
Verbal behavior, decision making, variability; counseling

• Odum, A., Baumann, A. A., & Dorton. D. Discounting of delayed hypothetical food and monetary outcomes: Effects of amount . Manuscript in preparation.
• Baumann, A. A., Abreu-Rodrigues, J. & Souza, A. S. (2005, May). Variation and behavioral sensitivity to contingency changes. In J. Abreu-Rodrigues (Chair). International Paper Session . Paper presented at the 31st annual meeting of the Association for Behavior Analysis, Chicago, Illinois.
• Baumann, A. A., Odum, A., & Charlton, S. R. (2005, May). Decision making: Base rate, context and degree of exposure. In J. Abreu-Rodrigues (Chair). Conjunction fallacy and base-rate error: Are those behaviors controlled by reinforcement contingencies? Symposium conducted at the 31st annual meeting of the Association for Behavior Analysis, Chicago, Illinois.
• Baumann, A. A., Dorton, D., Ryan, M. T., & Odum, A. (2005, May). Discounting of delayed hypothetical food and monetary outcomes: Effects of amount . Poster session presented at the 31st annual meeting of the Association for Behavior Analysis, Chicago, Illinois.
• Baumann, A. A. & Abreu-Rodrigues, J. (2004, May). Verbal control, variation and sensitivity to contingency changes . Poster session presented at the 30th annual meeting of the Association for Behavior Analysis, Boston, Massachusetts.
• Baumann, A. A. & Abreu-Rodrigues, J. (2004, August). Conjunction fallacy: Contributions of numerical and social variables . Poster session presented at the XIII annual Encontro Brasileiro de Psicoterapia e Medicina Comportamental (ABPMC) [Brazilian Association of Behavioral Psychotherapy and Medicine], Campinas, Brazil.
• Baumann, A.A. (2003, August). Rules and self-rules: An analysis of a study case with the help of basic research . Poster session at the XII annual Encontro Brasileiro de Psicoterapia e Medicina Comportamental (ABPMC) [Brazilian Association of Behavioral Psychotherapy and Medicine], Londrina, Brazil.
• Baumann, A. A. & Abreu-Rodrigues, J. (2003, August). Self-Instruction and instruction: Effects of the variability grade upon behavioral sensitivity . Poster session presented at the XII annual Encontro Brasileiro de Psicoterapia e Medicina Comportamental (ABPMC) [Brazilian Association of Behavioral Psychotherapy and Medicine], Londrina, Brazil

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Stacey L. McFeron
BS: University of Florida, 2003
MA: Queens College at the City University of New York, 2005

Interests:
Experimental analysis of behavior, behavioral pharmacology, choice behavior, matching law, drug self-administration, reinstatement.

• Lee, D.Y., Gutilla, M., McFeron, S.L., Yan, J., Wise, R.A., & Ranaldi, R. R. (2005, November). Microinjections of muscimol in the ventral tegmental area decrease rate of intravenous cocaine self-administration in rats. Poster Session to be presented at the 35th annual meeting of the Neuroscience conference, Washington, D.C.
• Lee, D.Y., Gutilla, M., McFeron, S.L., Yan, J., & Ranaldi, R. R. Effects of Microinjections of a GABA-A agonist or antagonist in the VTA on cocaine self-administration in rats. Manuscript submitted for publication.
• McFeron, S.L., & Ranaldi, R.R. (2005, April). MK-801, an NMDA receptor antagonist, fails to block behavioral sensitization to cocaine. Poster Session presented at the 9th annual meeting of the NEURON Conference, New York, New York.
• Quick, S., Branch, M., Yoon, Jin. (2002, November) An Automated Shaping Procedure. University of Florida. Poster Session at the 2002 Southeastern Association of Behavioral Analysis Conference.

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[psychology]