Apparatus bias and the use of light and texture in place conditioningPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, 4400 Massachusetts Avenue NW, Washington, DC 20016, USA
Pharmacol Biochem Behav 82:163-9. 2005
..Implications for place conditioning are discussed, including the potential value of systematically exploiting apparatus bias in addition to eliminating it...
Mark tests for mirror self-recognition in capuchin monkeys (Cebus apella) trained to touch marksPeter G Roma
Department of Psychology, American University, Washington, DC 20016, USA
Am J Primatol 69:989-1000. 2007
..The implications of sequential training and mark testing for comparative evaluations of mirror self-recognition capacity are discussed...
Genetic and early environmental contributions to alcohol's aversive and physiological effectsPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, Washington, DC, USA
Pharmacol Biochem Behav 91:134-9. 2008
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Early maternal separation and sex differences in the aversive effects of amphetamine in adult ratsPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, 4400 Massachusetts Avenue, NW, Washington, DC 20016, USA
Physiol Behav 93:897-904. 2008
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Cross-fostering and the extinction of cocaine's conditioned aversive effects: evidence for gene-environment interactionPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, 4400 Massachusetts Avenue, NW, Washington, DC 20016, USA
Pharmacol Biochem Behav 88:1-8. 2007
..These data join other examples of cross-fostering effects on physiology and behavior in these strains and further support the use of the Fischer-Lewis model for exploring gene-environment interaction in drug-induced phenotypes...
Dissociation between the aversive and pharmacokinetic effects of ethanol in female Fischer and Lewis ratsPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, 4400 Massachusetts Avenue, NW, Washington, DC, USA
Behav Brain Res 182:51-6. 2007
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Effects of cross-fostering on cocaine-induced conditioned taste aversions in Fischer and Lewis ratsPeter G Roma
Psychopharmacology Laboratory Department of Psychology American University, 4400 Massachusetts Avenue, NW, Washington, DC 20016, USA
Dev Psychobiol 49:172-9. 2007
..Implications for studying maternal behavior as a source of epigenetic modulation of drug abuse vulnerability were discussed...
Separation stress, litter size, and the rewarding effects of low-dose morphine in the dams of maternally separated ratsPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, 4400 Massachusetts Avenue, NW, Washington, DC 20016, USA
Prog Neuropsychopharmacol Biol Psychiatry 31:429-33. 2007
..Potential effects of other doses, drugs of abuse and post-partum manipulations remain to be evaluated within this emerging etiological model...
Assessment of the aversive and rewarding effects of alcohol in Fischer and Lewis ratsPeter G Roma
Psychopharmacology Laboratory, Department of Psychology, American University, Washington, DC 20016, USA
Psychopharmacology (Berl) 189:187-99. 2006
..Application of the Fischer-Lewis genetic model of drug abuse to the study of alcohol's motivational properties has been limited...
Environmental control, social context, and individual differences in behavioral and cortisol responses to novelty in infant rhesus monkeysPeter G Roma
National Institute of Child Health and Human Development, USA
Child Dev 77:118-31. 2006
..The results reveal context-specific benefits of contingent stimulation in infancy...
Capuchin monkeys, inequity aversion, and the frustration effectPeter G Roma
American University, Washington DC 20016, USA
J Comp Psychol 120:67-73. 2006
..These results fail to support findings of Brosnan and de Waal. An account based on the frustration effect accommodates these results and those of Brosnan and de Waal...
The impact of early environmental rearing condition on the discriminative stimulus effects and Fos expression induced by cocaine in adult male and female ratsStephen J Kohut
Psychopharmacology Laboratory, Department of Psychology, American University, Washington, DC 20016, USA
Psychopharmacology (Berl) 203:383-97. 2009
..A number of environmental manipulations, including maternal separation (MS), have been shown to alter behavioral responses to drugs of abuse...
Assessing the role of the medial preoptic area in ethanol-induced hypothermiaAshley T Westerman
Department of Psychology, The University of Texas at Austin, Austin, TX, USA
Neurosci Lett 475:25-8. 2010
..These findings indicate that ethanol increases neural activity in the MPOA, but this increased activity does not influence ethanol-induced changes in core body temperature...
Morphine-induced place conditioning in Fischer and Lewis rats: acquisition and dose-response in a fully biased procedureCatherine M Davis
Psychopharmacology Laboratory, Department of Psychology, American University, Washington, DC 20016, USA
Pharmacol Biochem Behav 86:516-23. 2007
..Additional implications for the Fischer-Lewis model of drug abuse and the utility of CPP acquisition procedures are discussed...
The effects of nicotine on ethanol-induced conditioned taste aversions in Long-Evans ratsJennifer A Rinker
Psychopharmacology Laboratory, Department of Psychology, American University, Washington, DC 20016, USA
Psychopharmacology (Berl) 197:409-19. 2008
..Overall drug acceptability is thought to be a function of the balance between its rewarding and aversive effects, the latter of which is reportedly affected by polydrug use...
On loss aversion in capuchin monkeysAlan Silberberg
American University, Washington, DC 20016 8062, USA
J Exp Anal Behav 89:145-55. 2008
..We present three experiments with monkeys and humans consistent with a reinterpretation of their data that attributes their results not to loss aversion, but to differences between choice alternatives in delay of reinforcement...
On inequity aversion in nonhuman primatesAlan Silberberg
Department of Psychology, American University, Washington, DC 20016, USA
J Comp Psychol 120:76. 2006
..This conclusion holds no matter what the claimed inadequacies of Roma et al.'s procedures might have been. Caution is urged in inferring the existence of inequity aversion in nonhuman primates...
Demand for cocaine and food over timeChesley J Christensen
American University, 4400 Massachusetts Ave, NW, Washington, DC 20016, USA
Pharmacol Biochem Behav 91:209-16. 2008
..These results show that the strength of cocaine, but not food, increases with increased experience. Measures of time-based changes in essential value may serve as a basis for distinguishing addictive from non-addictive reinforcers...
The antiepileptic primidone impairs male rat sexual behaviorAshley T Westerman
Department of Psychology, American University, Washington, DC 20016, USA
Pharmacol Biochem Behav 93:160-4. 2009
..Together, these data indicate that primidone impairs male sexual activity and suggest that these impairments result primarily from changes in erectile function and not changes to mechanisms mediating motivation...