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Krishnan S, Bevins RA, de Wit H. Place conditioning in humans: opportunities for translational research. Psychopharmacology (Berl) 2023; 240:2221-2230. [PMID: 36656336 PMCID: PMC10949408 DOI: 10.1007/s00213-023-06316-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/08/2023] [Indexed: 01/20/2023]
Abstract
RATIONALE Translational research, especially research that bridges studies with humans and nonhuman species, is critical to advancing our understanding of human disorders such as addiction. This advancement requires reliable and rigorous models to study the underlying constructs contributing to the maladaptive behavior. OBJECTIVE In this commentary, we address some of the challenges of conducting translational research by examining a single procedure, place conditioning. Place conditioning is commonly used with laboratory animals to study the conditioned rewarding effects of drugs, and recent studies indicate that a similar procedure can be used in humans. RESULTS We discuss the opportunities and challenges of making the procedure comparable across species, as well as discuss the benefits of more systematically applying the procedure to humans. CONCLUSION We argue that the capacity of humans to report verbally on their internal experiences (perceptions, affective states, likes and dislikes) add an important dimension to the understanding of the procedures used in laboratory animals.
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Affiliation(s)
- Seetha Krishnan
- Department of Neurobiology and Institute for Neuroscience, University of Chicago, Chicago, IL, 60637, USA
| | - Rick A Bevins
- Department of Psychology, University of Nebraska - Lincoln, Lincoln, NE, 68588-0308, USA
| | - Harriet de Wit
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, 60637, USA.
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Yaw AM, Woodruff RW, Prosser RA, Glass JD. Paternal Cocaine Disrupts Offspring Circadian Clock Function in a Sex-Dependent Manner in Mice. Neuroscience 2018; 379:257-268. [DOI: 10.1016/j.neuroscience.2018.03.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/20/2018] [Accepted: 03/09/2018] [Indexed: 10/17/2022]
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3
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Stowie AC, Amicarelli MJ, Prosser RA, Glass JD. Chronic cocaine causes long-term alterations in circadian period and photic entrainment in the mouse. Neuroscience 2014; 284:171-179. [PMID: 25301751 DOI: 10.1016/j.neuroscience.2014.08.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 08/27/2014] [Accepted: 08/27/2014] [Indexed: 11/17/2022]
Abstract
The disruptive effects of cocaine on physiological, behavioral and genetic processes are well established. However, few studies have focused on the actions of cocaine on the adult circadian timekeeping system, and none have explored the circadian implications of long-term (weeks to months) cocaine exposure. The present study was undertaken to explore the actions of such long-term cocaine administration on core circadian parameters in mice, including rhythm period, length of the nocturnal activity period and photic entrainment. For cocaine dosing over extended periods, cocaine was provided in drinking water using continuous and scheduled regimens. The impact of chronic cocaine on circadian regulation was evidenced by disruptions of the period of circadian entrainment and intrinsic free-running circadian period. Specifically, mice under a skeleton photoperiod (1-min pulse of dim light delivered daily) receiving continuous ad libitum cocaine entrained rapidly to the light pulse at activity onset. Conversely, water controls entrained more slowly at activity offset through a process of phase-delays, which resulted in their activity rhythms being entrained 147° out of phase with the cocaine group. This pattern persisted after cocaine withdrawal. Next, mice exposed to scheduled daily cocaine presentations exhibited free-running periods under constant darkness that were significantly longer than water controls and which also persisted after cocaine withdrawal. These cocaine-induced perturbations of clock timing could produce chronic psychological and physiological stress, contributing to increased cocaine use and dependence.
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Affiliation(s)
- A C Stowie
- Department of Biological Sciences, Kent State University, Kent, OH 44242, USA
| | - M J Amicarelli
- Department of Biological Sciences, Kent State University, Kent, OH 44242, USA
| | - R A Prosser
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, USA
| | - J D Glass
- Department of Biological Sciences, Kent State University, Kent, OH 44242, USA.
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Walker QD, Schramm-Sapyta NL, Caster JM, Waller ST, Brooks MP, Kuhn CM. Novelty-induced locomotion is positively associated with cocaine ingestion in adolescent rats; anxiety is correlated in adults. Pharmacol Biochem Behav 2008; 91:398-408. [PMID: 18790706 DOI: 10.1016/j.pbb.2008.08.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2007] [Revised: 08/12/2008] [Accepted: 08/13/2008] [Indexed: 12/15/2022]
Abstract
The present studies assessed the roles of sex, age, novelty-seeking and plus-maze behavior on cocaine drinking in rats. Cocaine/saccharin solution was available in three daily, 5-hour sessions then a saccharin-only solution was also available in following sessions. In the one-bottle drinking phase, early and late adolescent males, post-natal day 28 (PN28) and PN42, consumed more cocaine/saccharin solution than young adults (PN65), but females did not exhibit significant age differences. Adolescents of both sexes consumed more cocaine/saccharin than adults during choice drinking. Saccharin availability in the two-bottle trials decreased cocaine/saccharin consumption in PN28 and PN65 rats. After a drug-free period, cocaine-stimulated locomotion was lower in cocaine/saccharin drinking than saccharin-only males, indicating tolerance. We tested the hypothesis that individual differences in pre-screened behavioral traits would correlate with cocaine/saccharin consumption in PN28 and PN65 male rats. High locomotor responses to novelty were associated with greater cocaine/saccharin drinking in adults in one-bottle sessions. In the subsequent choice drinking phase, correlations were age-specific. Adolescents with high novelty-induced locomotion and adults that spent less time on open arms of the elevated plus-maze drank more cocaine/saccharin. Thus, behavioral phenotypes correlated with individual differences in cocaine/saccharin consumption in an age-related manner.
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Affiliation(s)
- Q David Walker
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, United States
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Lease KA, Hirsh J. A novel method of cocaine delivery to fruit flies using a graphic arts airbrush. J Neurosci Methods 2005; 141:89-96. [PMID: 15585292 DOI: 10.1016/j.jneumeth.2004.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2004] [Revised: 06/01/2004] [Accepted: 06/03/2004] [Indexed: 11/21/2022]
Abstract
The fruit fly Drosophila melanogaster is a model system for studying pathways regulating responses to cocaine. We describe a new method for delivering cocaine to Drosophila. Freebase cocaine dissolved in ethanol is sprayed onto cold-anaesthetized flies using a graphic arts airbrush modified to reproducibly control the drug dosage. Cocaine dose response curves were generated to characterize the behavioral responses of flies using the airbrush method or the established cocaine smoke method of drug delivery. The stereotypic responses observed with the airbrush showed a dose-dependent increase and were qualitatively similar to those elicited by cocaine smoke. The variation in behaviors of flies dosed with the airbrush was smaller than that of the smoke-dosed flies, indicating that the airbrush method gives better reproducibility. Since flies are exposed to alcohol as well as cocaine in the airbrush behavioral paradigm, it was important to control for possible effects of ethanol. Control experiments indicated that none of the stereotypies elicited with cocaine were caused by vehicle alone and very little ethanol remains in the flies following this protocol. The utility of the airbrush method was demonstrated by its use in a pilot genetic screen that identified a cocaine resistant mutant.
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Affiliation(s)
- Kevin A Lease
- Department of Biology, 262 Gilmer Hall, University of Virginia, Charlottesville, VA 22903, USA
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Davidson C, Lazarus C, Lee TH, Ellinwood EH. Ondansetron, given during the acute cocaine withdrawal, attenuates oral cocaine self-administration. Eur J Pharmacol 2004; 503:99-102. [PMID: 15496303 DOI: 10.1016/j.ejphar.2004.09.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2004] [Revised: 08/19/2004] [Accepted: 09/10/2004] [Indexed: 10/26/2022]
Abstract
We have previously shown that ondansetron, given 3.5 h after intravenous cocaine self-administration, can attenuate self-administration the following day. Here we tested ondansetron given either before or after a 14-h oral cocaine session in rats. Ondansetron (0.2 mg/kg sc) given 30 min before the cocaine session had no effect. However, when given 3.5 h after, ondansetron attenuated cocaine intake the following day while having no effect on water intake. Taken with our previous data in intravenous cocaine self-administration, we suggest that the acute cocaine withdrawal period may be an important treatment window and that ondansetron may be an effective cocaine abuse therapy.
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Affiliation(s)
- Colin Davidson
- Department of Psychiatry, Box 3870, Duke University Medical Center, Durham, NC 27710, USA.
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Abstract
Having established that the presence of cocaine in a 10% (wt/vol) sucrose solution enhanced the reinforcing properties of the solution in a dose-dependent manner, the authors investigated the susceptibility of oral cocaine seeking to outcome devaluation. Rats were trained to perform different instrumental responses for a cocaine-sucrose and a lemon-sucrose solution. An aversion was then conditioned from either the cocaine-sucrose or the lemon-sucrose solution by pairing consumption with lithium chloride. When instrumental performance was subsequently tested in extinction, the rats performed the lemon-sucrose response less if this solution, rather than cocaine-sucrose, had been devalued by aversion conditioning. By contrast, performance of the cocaine-sucrose response was unaffected by whether the cocaine-sucrose or the lemon-sucrose solution had been devalued.
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Affiliation(s)
- Felicity J Miles
- Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB, England, UK
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Grathwohl C, Dadmarz M, Vogel WH. Oral self-administration of ethanol and cocaine in rats. Pharmacology 2002; 63:160-5. [PMID: 11598422 DOI: 10.1159/000056128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Most laboratory animal studies on self-administration of drugs of abuse use only one drug, whereas humans frequently engage in polydrug use. For this reason, we studied oral self-administration of ethanol (E) and cocaine (C) with the free choice bottle method using a single drug alone, a combination (E and C in separate bottles) or a mixture of both drugs in a single bottle. Young female rats (45 days) consumed similar amounts of C if offered alone (12.4 +/- 7.5 mg/kg/day), in the presence of ethanol (10.6 +/- 3.5) or as E/C mixture (8.0 +/- 4.0). They also consumed similar amounts of E if offered alone (3.8 +/- 1.6 ml/kg/day), in the presence of C (2.3 +/- 0.8) or E/C mixture (2.4 +/- 1.1). Voluntary consumption of both drugs varied markedly among animals but was consistent in a given rat. No correlation occurred between consumption of E and C. Young male rats behaved similarly and consumed similar amounts of E and C alone, in combination and as mixture. While E consumption was similar, C consumption was higher in female rats. Old male rats (180 days) were similar to young male rats. The presence of a saccharin solution as a distracter had no effect on intake of E or C in young females but reduced E intake only in young male rats. In young animals, prior voluntary consumption of either E or C had no effect on subsequent voluntary consumption of the same or other drug offered in combination. These results indicate that this model may be useful to study polydrug use in humans, that consumption of both E and C is strongly controlled by an individual animal, that prior exposure to one drug had no or little effect on a subsequent consumption of the same or other drug in combination and that intake of E or C seems to be independent of each other suggesting two independent reward centers.
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Affiliation(s)
- C Grathwohl
- Department of Biochemistry and Molecular Pharmacology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA 19107, USA
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Abstract
Using a laboratory animal procedure designed to measure two aspects of reinforcement (self-administration and location preference), five adult rhesus monkeys each lived in three chambers: oral cocaine self-administration (0.26 mg/kg/delivery cocaine hydrochloride in a sweet fluid) was specific to one end chamber, food self-administration was specific to the other end chamber, and no food cues or fluid cues were available in the middle chamber. Throughout the 10-h experimental day monkeys experienced multiple food, cocaine, and choice (food vs. sweet cocaine fluid), sessions. Oral d-amphetamine (AMPH; 0.5-1.5 mg/kg) or placebo was administered before the sessions to determine if this anorectic drug would differentially alter food and sweet cocaine fluid self-administration. Further, the effects of AMPH on the length of time a monkey spent in each chamber, when the stimulus cues indicating commodity availability were not present (location preference) were determined. AMPH produced dose-dependent decreases in both food and cocaine self-administration without affecting choice behavior. AMPH also increased the length of time monkeys spent in the food chamber, even when no stimuli indicating food availability were present. These results indicate that the relationship between self-administration and location preference measures of reinforcement is not completely concordant. The current procedure may prove useful in studying these two measures of reinforcement.
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Affiliation(s)
- R W Foltin
- New York State Psychiatric Institute and Department of Psychiatry, College of Physicians and Surgeons of Columbia University, New York 10032, USA
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Tzschentke TM. Measuring reward with the conditioned place preference paradigm: a comprehensive review of drug effects, recent progress and new issues. Prog Neurobiol 1998; 56:613-72. [PMID: 9871940 DOI: 10.1016/s0301-0082(98)00060-4] [Citation(s) in RCA: 917] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review gives an overview of recent findings and developments in research on brain mechanisms of reward and reinforcement from studies using the place preference conditioning paradigm, with emphasis on those studies that have been published within the last decade. Methodological issues of the paradigm (such as design of the conditioning apparatus, biased vs unbiased conditioning, state dependency effects) are discussed. Results from studies using systemic and local (intracranial) drug administration, natural reinforcers, and non-drug treatments and from studies examining the effects of lesions are presented. Papers reporting on conditioned place aversion (CPA) experiments are also included. A special emphasis is put on the issue of tolerance and sensitization to the rewarding properties of drugs. Transmitter systems that have been investigated with respect to their involvement in brain reward mechanisms include dopamine, opioids, acetylcholine, GABA, serotonin, glutamate, substance P, and cholecystokinin, the motivational significance of which has been examined either directly, by using respective agonist or antagonist drugs, or indirectly, by studying the effects of these drugs on the reward induced by other drugs. For a number of these transmitters, detailed studies have been conducted to delineate the receptor subtype(s) responsible for the mediation of the observed drug effects, particularly in the case of dopamine, the opioids, serotonin and glutamate. Brain sites that have been implicated in the mediation of drug-induced place conditioning include the 'traditional' brain reward sites, ventral tegmental area and nucleus accumbens, but the medial prefrontal cortex, ventral pallidum, amygdala and the pedunculopontine tegmental nucleus have also been shown to play important roles in the mediation of place conditioning induced by drugs or natural reinforcers. Thus, although the paradigm has also been criticized because of some inherent methodological problems, it is clear that during the past decade place preference conditioning has become a valuable and firmly established and very widely used tool in behavioural pharmacology and addiction research.
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Affiliation(s)
- T M Tzschentke
- Department of Neuropharmacology, University of Tübingen, Germany.
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Schechter MD, Calcagnetti DJ. Continued trends in the conditioned place preference literature from 1992 to 1996, inclusive, with a cross-indexed bibliography. Neurosci Biobehav Rev 1998; 22:827-46. [PMID: 9809314 DOI: 10.1016/s0149-7634(98)00012-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In light of the overwhelming response to the previous publication in Neuroscience and Biobehavioral Reviews (1993, 17, 21-41) regarding trends in place conditioning (either preference or aversion), the present work constitutes a five-year follow-up to review the empirical research in this behavioral paradigm from 1992 to 1996, inclusively. The behavioral technique has grown as indicated by the number of publications over the last five years which equals those authored over the 35 years covered by our last survey. The previous work used descriptive statistics to explore topical issues, whereas the present work discusses trends since that time and hopes to provide an exhaustive bibliography of the CPP literature, including articles, published abstracts, book chapters and reviews, as well as providing a cross-index of identified key words/drugs tested.
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Affiliation(s)
- M D Schechter
- Department of Pharmacology, Northeastern Ohio University College of Medicine, Rootstown 44272-0095, USA.
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Jentsch JD, Henry PJ, Mason PA, Merritt JH, Ziriax JM. Establishing orally self-administered cocaine as a reinforcer in rats using home-cage pre-exposure. Prog Neuropsychopharmacol Biol Psychiatry 1998; 22:229-39. [PMID: 9533178 DOI: 10.1016/s0278-5846(97)00105-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
1. Rats were force-exposed to a cocaine + saccharin solution in their home cage water bottles for five days. They were then given 5 h home-cage access to both cocaine and cocaine-free solutions for 40 days. 2. The subjects consumed large doses of the cocaine solution despite the ad libitum availability of water. 3. The animals were then trained on a task consisting of operant bar pressing rewarded on an intermittent schedule with a liquid cocaine reinforcer. 4. All subjects performed the operant task and consumed doses of cocaine solution which are preferred over water in other paradigms. 5. Levels of responding were significantly reduced in three of four subjects when vehicle was substituted for liquid cocaine as the reward. 6. This demonstrates that orally self-administered cocaine can be used as a reinforcer in rats.
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Affiliation(s)
- J D Jentsch
- Operational Technologies Corp, San Antonio, Texas, USA
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Falk JL, Siris A, Lau CE. Conditions sufficient for the production of oral cocaine or lidocaine self-administration in preference to water. Drug Alcohol Depend 1996; 40:241-7. [PMID: 8861403 DOI: 10.1016/0376-8716(96)01220-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Groups of rats were given a chronic history of drinking cocaine solutions of different concentrations in daily, 3-h schedule induced polydipsia sessions. Animals failed to develop a preference for cocaine solution to concurrently presented water. Schedule-induction conditions were maintained, and the animals were divided into separate groups, drinking either cocaine or lidocaine placed in a highly acceptable vehicle (glucose-saccharin solution). Animals preferred their respective drug solutions to concurrently presented water, and these preferences remained stable after the glucose-saccharin vehicle was gradually faded to water, leaving only cocaine or lidocaine, respectively, in the solution. Thus a stable preference for drug solution to water could be instituted in rats for either cocaine or lidocaine solution (putative reinforcing and nonreinforcing agents, respectively) given an appropriate associative history, with high intakes maintained by schedule-induction. Conditions sufficient for the initiation of an oral preference and high intake for a putatively reinforcing drug cannot be assumed to occur owing to the drug's reinforcing property in the absence of demonstrating the ineffectiveness of an appropriate negative control substance.
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Affiliation(s)
- J L Falk
- Department of Psychology, Rutgers University, New Brunswick, NJ 08903, USA
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Bardo MT, Rowlett JK, Harris MJ. Conditioned place preference using opiate and stimulant drugs: a meta-analysis. Neurosci Biobehav Rev 1995; 19:39-51. [PMID: 7770196 DOI: 10.1016/0149-7634(94)00021-r] [Citation(s) in RCA: 309] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A meta-analysis was conducted on the data obtained from published articles that have used the conditioned place preference (CPP) paradigm to assess the rewarding effects of morphine, heroin, amphetamine and cocaine in rats. Using a histogram analysis of the data, significant dose-effect curves were evident with all of the drugs examined, except for cocaine. Analysis of the data also revealed that several methodological variables moderated the effect size for CPP, at least with some of the drugs examined. In particular, the following methodological variables significantly moderated CPP effect size: strain of rat used; housing condition (single or group cages); type of apparatus (2 or 3 compartments); preconditioning test (present or absent); route of drug administration; intervening saline trials (present or absent); conditioning trial duration; and drug compartment (nonpreferred, counterbalanced or white). No significant effect size differences were evident using sex, number of drug trials, or test duration as moderator variables in the analyses. These meta-analytic results may be useful to investigators for maximizing the effect size of drug-induced CPP.
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Affiliation(s)
- M T Bardo
- Department of Psychology, University of Kentucky, Lexington 40506-0044, USA
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Abstract
Rats were exposed daily to a food schedule-induced polydipsia condition, in which water and 0.16 mg/ml cocaine solution were available concurrently, with the cocaine solution indicated by a discriminative stimulus (SD) light. The cocaine solution was preferred, and the preference was maintained when the SD was gradually eliminated by fading its intensity. For a second group, if cocaine concentration was the stimulus gradually eliminated, preference for the resulting solution (water) indicated by the SD was stably maintained. For two additional groups, if either the light SD or the cocaine stimulus was removed abruptly rather than gradually, few animals retained preferences. These studies reveal the importance of establishing strong stimulus control for the initiation and persistence of drug abuse behavior.
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Affiliation(s)
- J L Falk
- Department of Psychology, Rutgers University, New Brunswick, NJ 08903
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Schedule-induced drug self-administration. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/b978-0-444-81444-9.50017-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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