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Bellés L, Arrondeau C, Urueña-Méndez G, Ginovart N. Concurrent measures of impulsive action and choice are partially related and differentially modulated by dopamine D 1- and D 2-like receptors in a rat model of impulsivity. Pharmacol Biochem Behav 2023; 222:173508. [PMID: 36473517 DOI: 10.1016/j.pbb.2022.173508] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Impulsivity is a multidimensional construct, but the relationships between its constructs and their respective underlying dopaminergic underpinnings in the general population remain unclear. A cohort of Roman high- (RHA) and low- (RLA) avoidance rats were tested for impulsive action and risky decision-making in the rat gambling task, and then for delay discounting in the delay-discounting task to concurrently measure the relationships among the three constructs of impulsivity using a within-subject design. Then, we evaluated the effects of dopaminergic drugs on the three constructs of impulsivity, considering innate differences in impulsive behaviors at baseline. Risky decision-making and delay-discounting were positively correlated, indicating that both constructs of impulsive choice are related. Impulsive action positively correlated with risky decision-making but not with delay discounting, suggesting partial overlap between impulsive action and impulsive choice. RHAs showed a more impulsive phenotype in the three constructs of impulsivity compared to RLAs, demonstrating the comorbid nature of impulsivity in a population of rats. Amphetamine increased impulsive action and had no effect on risky decision-making regardless of baseline levels of impulsivity, but it decreased delay discounting only in high impulsive RHAs. In contrast, while D1R and D3R agonism as well as D2/3R partial agonism decreased impulsive action regardless of baseline levels of impulsivity, D2/3R agonism decreased impulsive action exclusively in high impulsive RHAs. Irrespective of baseline levels of impulsivity, risky decision-making was increased by D1R and D2/3R agonism but not by D3R agonism or D2/3R partial agonism. Finally, while D1R and D3R agonism, D2/3R partial agonism and D2R blockade increased delay discounting irrespective of baseline levels of impulsivity, D2/3R agonism decreased it in low impulsive RLAs only. These findings indicate that the acute effects of dopamine drugs were partially overlapping across dimensions of impulsivity, and that only D2/3R agonism showed baseline-dependent effects on impulsive action and impulsive choice.
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Affiliation(s)
- Lidia Bellés
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland; Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland.
| | - Chloé Arrondeau
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland; Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland.
| | - Ginna Urueña-Méndez
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland; Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland.
| | - Nathalie Ginovart
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland; Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland.
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Liley AE, Joyner HN, Gabriel DBK, Simon NW. Effects of the psychoactive compounds in green tea on risky decision-making. Behav Pharmacol 2022; 33:32-41. [PMID: 35007234 PMCID: PMC8830767 DOI: 10.1097/fbp.0000000000000664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Epigallocatechin-3-gallate (EGCG) and caffeine are the two primary compounds found in green tea. While EGCG has anxiolytic and anti-inflammatory effects, its acute effects on cognition are not well understood. Furthermore, despite widespread green tea consumption, little is known about how EGCG and caffeine co-administration impacts behavior. Here, we investigated the effects of multiple doses of either EGCG or caffeine on a rat model of risk-taking. This was assessed using the risky decision-making task (RDT), in which rats choose between a small, well-tolerated reward and a large reward with escalating risk of mild footshock. Rats were tested in RDT after acute systemic administration of EGCG, caffeine or joint EGCG and caffeine. EGCG caused a dose-dependent reduction in risk-taking without affecting reward discrimination or task engagement. Caffeine did not impact risk-taking, but elevated locomotor activity and reduced task engagement at high doses. Finally, exposure to both EGCG and caffeine had no effect on risk-taking, suggesting that low-dose caffeine is sufficient to mask the risk-aversion caused by EGCG. These data suggest EGCG as a potential therapeutic treatment for psychological disorders that induce compulsive risky decision-making.
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Affiliation(s)
- Anna E Liley
- Department of Psychology, University of Memphis, Memphis, Tennessee, USA
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Jones JA, Zuhlsdorff K, Dalley JW. Neurochemical substrates linked to impulsive and compulsive phenotypes in addiction: A preclinical perspective. J Neurochem 2021; 157:1525-1546. [PMID: 33931861 DOI: 10.1111/jnc.15380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/24/2021] [Accepted: 04/25/2021] [Indexed: 01/18/2023]
Abstract
Drug compulsion manifests in some but not all individuals and implicates multifaceted processes including failures in top-down cognitive control as drivers for the hazardous pursuit of drug use in some individuals. As a closely related construct, impulsivity encompasses rash or risky behaviour without foresight and underlies most forms of drug taking behaviour, including drug use during adverse emotional states (i.e., negative urgency). While impulsive behavioural dimensions emerge from drug-induced brain plasticity, burgeoning evidence suggests that impulsivity also predates the emergence of compulsive drug use. Although the neural substrates underlying the apparently causal relationship between trait impulsivity and drug compulsion are poorly understood, significant advances have come from the interrogation of defined limbic cortico-striatal circuits involved in motivated behaviour and response inhibition, together with chemical neuromodulatory influences from the ascending neurotransmitter systems. We review what is presently known about the neurochemical mediation of impulsivity, in its various forms, and ask whether commonalities exist in the neurochemistry of compulsive drug-motivated behaviours that might explain individual risk for addiction.
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Affiliation(s)
- Jolyon A Jones
- Department of Psychology, University of Cambridge, Cambridge, UK
| | | | - Jeffrey W Dalley
- Department of Psychology, University of Cambridge, Cambridge, UK.,Department of Psychiatry, Hershel Smith Building for Brain and Mind Sciences, Cambridge, UK
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Leenaars CH, Van der Mierden S, Joosten RN, Van der Weide MA, Schirris M, Dematteis M, Meijboom FL, Feenstra MG, Bleich A. Risk-Based Decision Making: A Systematic Scoping Review of Animal Models and a Pilot Study on the Effects of Sleep Deprivation in Rats. Clocks Sleep 2021; 3:31-52. [PMID: 33498259 PMCID: PMC7838799 DOI: 10.3390/clockssleep3010003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
Animals, including humans, frequently make decisions involving risk or uncertainty. Different strategies in these decisions can be advantageous depending the circumstances. Short sleep duration seems to be associated with more risky decisions in humans. Animal models for risk-based decision making can increase mechanistic understanding, but very little data is available concerning the effects of sleep. We combined primary- and meta-research to explore the relationship between sleep and risk-based decision making in animals. Our first objective was to create an overview of the available animal models for risky decision making. We performed a systematic scoping review. Our searches in Pubmed and Psychinfo retrieved 712 references, of which 235 were included. Animal models for risk-based decision making have been described for rodents, non-human primates, birds, pigs and honey-bees. We discuss task designs and model validity. Our second objective was to apply this knowledge and perform a pilot study on the effect of sleep deprivation. We trained and tested male Wistar rats on a probability discounting task; a “safe” lever always resulted in 1 reward, a “risky” lever resulted in 4 or no rewards. Rats adapted their preferences to variations in reward probabilities (p < 0.001), but 12 h of sleep deprivation during the light phase did not clearly alter risk preference (p = 0.21).
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Affiliation(s)
- Cathalijn H.C. Leenaars
- Institute for Laboratory Animal Science, Hannover Medical School, 30625 Hannover, Germany; (S.V.d.M.); (A.B.)
- Department for Health Evidence (Section HTA), SYRCLE, Radboud University Medical Centre, 6600 Nijmegen, The Netherlands
- Unit Animals in Science and Society, Population Health Sciences, Utrecht University, 3500 Utrecht, The Netherlands;
- Correspondence: ; Tel.: +49-511-532-1368
| | - Stevie Van der Mierden
- Institute for Laboratory Animal Science, Hannover Medical School, 30625 Hannover, Germany; (S.V.d.M.); (A.B.)
- Department for Health Evidence (Section HTA), SYRCLE, Radboud University Medical Centre, 6600 Nijmegen, The Netherlands
| | - Ruud N.J.M.A. Joosten
- Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, 1000 Amsterdam, The Netherlands; (R.N.J.M.A.J.); (M.A.V.d.W.); (M.S.); (M.G.P.F.)
| | - Marnix A. Van der Weide
- Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, 1000 Amsterdam, The Netherlands; (R.N.J.M.A.J.); (M.A.V.d.W.); (M.S.); (M.G.P.F.)
| | - Mischa Schirris
- Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, 1000 Amsterdam, The Netherlands; (R.N.J.M.A.J.); (M.A.V.d.W.); (M.S.); (M.G.P.F.)
| | - Maurice Dematteis
- Department of Addiction Medicine, Grenobles Alpes University Hospital, Faculty of Medicine, Grenoble Alpes University, 38400 Grenoble, France;
| | - Franck L.B. Meijboom
- Unit Animals in Science and Society, Population Health Sciences, Utrecht University, 3500 Utrecht, The Netherlands;
| | - Matthijs G.P. Feenstra
- Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, 1000 Amsterdam, The Netherlands; (R.N.J.M.A.J.); (M.A.V.d.W.); (M.S.); (M.G.P.F.)
| | - André Bleich
- Institute for Laboratory Animal Science, Hannover Medical School, 30625 Hannover, Germany; (S.V.d.M.); (A.B.)
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Yates JR, Horchar MJ, Ellis AL, Kappesser JL, Mbambu P, Sutphin TG, Dehner DS, Igwe HO, Wright MR. Differential effects of glutamate N-methyl-D-aspartate receptor antagonists on risky choice as assessed in the risky decision task. Psychopharmacology (Berl) 2021; 238:133-148. [PMID: 32936321 PMCID: PMC7796939 DOI: 10.1007/s00213-020-05664-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/10/2020] [Indexed: 12/15/2022]
Abstract
RATIONALE Risky choice can be measured using the risky decision task (RDT). In the RDT, animals choose between a large, risky option that is paired with probabilistic foot shock and a small, safe option that is never paired with shock. To date, studies examining the neurochemical basis of decision-making in the RDT have focused primarily on the dopaminergic system but have not focused on the glutamatergic system, which has been implicated in risky decision-making. OBJECTIVES Because glutamate is known to play a critical role in decision-making, we wanted to determine the contribution of the glutamatergic system to performance in the RDT. METHODS In the experiment, 32 rats (16 male; 16 female) were tested in the RDT. The probability of receiving a foot shock increased across the session (ascending schedule) for half of the rats but decreased across the session (descending schedule) for half of the rats. Following training, rats received injections of the N-methyl-D-aspartate (NMDA) receptor competitive antagonist CGS 19755 (0, 1.0, 2.5, 5.0 mg/kg; s.c.) and the GluN2B-selective antagonist Ro 63-1908 (0, 0.1, 0.3, 1.0 mg/kg; s.c.). RESULTS CGS 19755 (2.5 and 5.0 mg/kg) increased risky choice in males and females trained on the ascending schedule. Ro 63-1908 (1.0 mg/kg) decreased risky choice, but only in male rats trained on the ascending schedule. CONCLUSIONS Although NMDA receptor antagonists differentially alter risky choice in the RDT, the current results show that NMDA receptors are an important mediator of decision-making involving probabilistic delivery of positive punishment.
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Affiliation(s)
- Justin R Yates
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA.
| | - Matthew J Horchar
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Alexis L Ellis
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Joy L Kappesser
- Department of Biological Sciences, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Prodiges Mbambu
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Tanner G Sutphin
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Destiny S Dehner
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Hephzibah O Igwe
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
| | - Makayla R Wright
- Department of Psychological Science, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY, 41099, USA
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Cunha AM, Pereira-mendes J, Almeida A, Guimarães MR, Leite-almeida H. Chronic pain impact on rodents’ behavioral repertoire. Neurosci Biobehav Rev 2020; 119:101-27. [DOI: 10.1016/j.neubiorev.2020.09.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 07/14/2020] [Accepted: 09/21/2020] [Indexed: 12/20/2022]
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Chuang CY, Tsai SY, Chen SF, Yang YH, Chao CC, Yen NS, Liao RM. Neurobiological changes in striatal glutamate are associated with trait impulsivity of differential reinforcement of low-rate-response behavior in male rats. Neurobiol Learn Mem 2020; 177:107352. [PMID: 33253826 DOI: 10.1016/j.nlm.2020.107352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022]
Abstract
Impulsive action can be measured using rat's responses on a differential reinforcement of low-rate-response (DRL) task in which performance may be varied between rats. Nevertheless, neurobiological profiles underlying the trait impulsivity of DRL behavior remain largely unknown. Here, in vivo non-invasive proton magnetic resonance spectroscopy (1H-MRS) and Western blot assay were performed to assess neurobiological changes in the dorsal striatum (DS) and nucleus accumbens (NAc) in relation to individual differences in DRL behavior. A cohort of rats was subjected to acquire a DRL task over 14 daily sessions. High impulsive (HI) and low impulsive (LI) rats were screened by behavioral measures displaying a lower response efficiency and performing more nonreinforced responses in HI rats and vice versa. MRS measurements indicated that the HI group had a lower NAc glutamate (Glu) level than did the LI group, whereas no such difference was found in the other five metabolites in this area. Moreover, no intergroup difference was observed in any metabolite in the DS. The results of Western blot assay revealed that protein expressions of GluN1 (but not GluN2B) subunit of N-methyl-D-aspartate receptors in the DS and NAc were higher in the HI group than in the LI group. This inherent timing impulsivity was not attributed to risky behavioral propensity because both Hl and LI rats could acquire a risk-dependent choice. The findings of this study, supported by certain correlations among behavioral, brain imaging, and neuroreceptor indices, provide evidence of the neurobiological changes of striatal Glu underlying trait impulsive action of DRL behavior.
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Affiliation(s)
- Chuen-Yu Chuang
- Department of Psychology, National Cheng-Chi University, Taipei, Taiwan; Institute of Neuroscience, National Cheng-Chi University, Taipei, Taiwan
| | - Shang-Yueh Tsai
- Research Center for Mind, Brain and Learning, National Cheng-Chi University, Taipei, Taiwan; Graduate Institute of Applied Physics, National Cheng-Chi University, Taipei, Taiwan
| | - Shuo-Fu Chen
- Department of Psychology, National Cheng-Chi University, Taipei, Taiwan; Institute of Neuroscience, National Cheng-Chi University, Taipei, Taiwan
| | - Yi-Hua Yang
- Department of Psychology, National Cheng-Chi University, Taipei, Taiwan; Institute of Neuroscience, National Cheng-Chi University, Taipei, Taiwan
| | - Chih-Chang Chao
- Institute of Neuroscience, National Cheng-Chi University, Taipei, Taiwan; Research Center for Mind, Brain and Learning, National Cheng-Chi University, Taipei, Taiwan
| | - Nai-Shing Yen
- Department of Psychology, National Cheng-Chi University, Taipei, Taiwan; Research Center for Mind, Brain and Learning, National Cheng-Chi University, Taipei, Taiwan
| | - Ruey-Ming Liao
- Department of Psychology, National Cheng-Chi University, Taipei, Taiwan; Institute of Neuroscience, National Cheng-Chi University, Taipei, Taiwan; Research Center for Mind, Brain and Learning, National Cheng-Chi University, Taipei, Taiwan.
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Humby T, Smith GE, Small R, Davies W, Carter J, Bentley CA, Winstanley CA, Rogers RD, Wilkinson LS. Effects of 5-HT(2C), 5-HT(1A) receptor challenges and modafinil on the initiation and persistence of gambling behaviours. Psychopharmacology (Berl) 2020; 237:1745-56. [PMID: 32123974 DOI: 10.1007/s00213-020-05496-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 02/19/2020] [Indexed: 11/07/2022]
Abstract
RATIONALE Problematic patterns of gambling are characterised by loss of control and persistent gambling often to recover losses. However, little is known about the mechanisms that mediate initial choices to begin gambling and then continue to gamble in the face of losing outcomes. OBJECTIVES These experiments first assessed gambling and loss-chasing performance under different win/lose probabilities in C57Bl/6 mice, and then investigated the effects of antagonism of 5-HT2CR with SB242084, 5-HT1AR agonism with 8-OH-DPAT and modafinil, a putative cognitive enhancer. RESULTS As seen in humans and other species, mice demonstrated the expected patterns of behaviour as the odds for winning were altered increasing gambling and loss-chasing when winning was more likely. SB242084 decreased the likelihood to initially gamble, but had no effects on subsequent gambling choices in the face of repeated losses. In contrast, 8-OH-DPAT had no effects on choosing to gamble in the first place, but once started 8-OH-DPAT increased gambling choices in a dose-sensitive manner. Modafinil effects were different to the serotonergic drugs in both decreasing the propensity to initiate gambling and chase losses. CONCLUSIONS We present evidence for dissociable effects of systemic drug administration on different aspects of gambling behaviour. These data extend and reinforce the importance of serotonergic mechanisms in mediating discrete components of gambling behaviour. They further demonstrate the ability of modafinil to reduce gambling behaviour. Our work using a novel mouse paradigm may be of utility in modelling the complex psychological and neurobiological underpinnings of gambling problems, including the analysis of genetic and environmental factors.
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Yates JR, Chitwood MR, Evans KE, Kappesser JL, Murray CP, Paradella-Bradley TA, Torline BT. Group I metabotropic glutamate receptor antagonists impair discriminability of reinforcer magnitude, but not risky choice, in a probability-discounting task. Behav Brain Res 2019; 365:77-81. [PMID: 30831139 DOI: 10.1016/j.bbr.2019.02.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 12/28/2022]
Abstract
The glutamatergic system has been identified as an important mediator of risky choice. However, previous studies have focused primarily on ionotropic glutamate receptors (e.g., NMDA receptors). Little research has examined the contribution of metabotropic glutamate receptors (mGluRs) on risky choice. The goal of the current experiment was to determine the effects of mGluR1 and mGluR5 antagonism on risky choice as assessed in probability discounting (PD). Male Sprague Dawley rats (n = 24) were trained in PD, in which consistently choosing a large, probabilistic reward (LR) reflects risky choice. For half of the rats, the odds against (OA) receiving the LR increased across blocks of trials, whereas the OA decreased across the session for half of the rats. Following training, rats received injections of the mGluR1 antagonist JNJ 16,259,685 (JNJ; 0, 0.1, 0.3, or 1.0 mg/kg; i.p) and the mGluR5 antagonist MTEP (0, 1.0, 3.0, or 10.0 mg/kg; i.p.). Regardless of which schedule was used, JNJ and MTEP decreased preference for the LR when its delivery was guaranteed. In contrast to delay discounting, in which blocking the mGluR1 has been shown to alter impulsive choice, these results show that the Group I mGluR family does not selectively alter risky choice. Instead, blocking these receptors appears to impair discriminability of reinforcers of varying magnitudes in PD.
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Affiliation(s)
- Justin R Yates
- Department of Psychological Science, Northern Kentucky University, USA.
| | | | - Karson E Evans
- Department of Psychological Science, Northern Kentucky University, USA
| | - Joy L Kappesser
- Department of Psychological Science, Northern Kentucky University, USA
| | | | | | - Brett T Torline
- Department of Psychological Science, Northern Kentucky University, USA
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