1
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Ponzi A, Wickens J. Ramping activity in the striatum. Front Comput Neurosci 2022; 16:902741. [PMID: 35978564 PMCID: PMC9376361 DOI: 10.3389/fncom.2022.902741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Control of the timing of behavior is thought to require the basal ganglia (BG) and BG pathologies impair performance in timing tasks. Temporal interval discrimination depends on the ramping activity of medium spiny neurons (MSN) in the main BG input structure, the striatum, but the underlying mechanisms driving this activity are unclear. Here, we combine an MSN dynamical network model with an action selection system applied to an interval discrimination task. We find that when network parameters are appropriate for the striatum so that slowly fluctuating marginally stable dynamics are intrinsically generated, up and down ramping populations naturally emerge which enable significantly above chance task performance. We show that emergent population activity is in very good agreement with empirical studies and discuss how MSN network dysfunction in disease may alter temporal perception.
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Affiliation(s)
- Adam Ponzi
- Institute of Biophysics, Italian National Research Council, Palermo, Italy
- *Correspondence: Adam Ponzi
| | - Jeff Wickens
- Neurobiology Research Unit, Okinawa Institute of Science and Technology (OIST), Okinawa, Japan
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2
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Yin B, Shi Z, Wang Y, Meck WH. Oscillation/Coincidence-Detection Models of Reward-Related Timing in Corticostriatal Circuits. TIMING & TIME PERCEPTION 2022. [DOI: 10.1163/22134468-bja10057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
The major tenets of beat-frequency/coincidence-detection models of reward-related timing are reviewed in light of recent behavioral and neurobiological findings. This includes the emphasis on a core timing network embedded in the motor system that is comprised of a corticothalamic-basal ganglia circuit. Therein, a central hub provides timing pulses (i.e., predictive signals) to the entire brain, including a set of distributed satellite regions in the cerebellum, cortex, amygdala, and hippocampus that are selectively engaged in timing in a manner that is more dependent upon the specific sensory, behavioral, and contextual requirements of the task. Oscillation/coincidence-detection models also emphasize the importance of a tuned ‘perception’ learning and memory system whereby target durations are detected by striatal networks of medium spiny neurons (MSNs) through the coincidental activation of different neural populations, typically utilizing patterns of oscillatory input from the cortex and thalamus or derivations thereof (e.g., population coding) as a time base. The measure of success of beat-frequency/coincidence-detection accounts, such as the Striatal Beat-Frequency model of reward-related timing (SBF), is their ability to accommodate new experimental findings while maintaining their original framework, thereby making testable experimental predictions concerning diagnosis and treatment of issues related to a variety of dopamine-dependent basal ganglia disorders, including Huntington’s and Parkinson’s disease.
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Affiliation(s)
- Bin Yin
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
- School of Psychology, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Zhuanghua Shi
- Department of Psychology, Ludwig Maximilian University of Munich, 80802 Munich, Germany
| | - Yaxin Wang
- School of Psychology, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Warren H. Meck
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
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3
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Fung BJ, Sutlief E, Hussain Shuler MG. Dopamine and the interdependency of time perception and reward. Neurosci Biobehav Rev 2021; 125:380-391. [PMID: 33652021 PMCID: PMC9062982 DOI: 10.1016/j.neubiorev.2021.02.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 02/16/2021] [Accepted: 02/19/2021] [Indexed: 01/14/2023]
Abstract
Time is a fundamental dimension of our perception of the world and is therefore of critical importance to the organization of human behavior. A corpus of work - including recent optogenetic evidence - implicates striatal dopamine as a crucial factor influencing the perception of time. Another stream of literature implicates dopamine in reward and motivation processes. However, these two domains of research have remained largely separated, despite neurobiological overlap and the apothegmatic notion that "time flies when you're having fun". This article constitutes a review of the literature linking time perception and reward, including neurobiological and behavioral studies. Together, these provide compelling support for the idea that time perception and reward processing interact via a common dopaminergic mechanism.
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Affiliation(s)
- Bowen J Fung
- The Behavioural Insights Team, Suite 3, Level 13/9 Hunter St, Sydney NSW 2000, Australia.
| | - Elissa Sutlief
- The Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Woods Basic Science Building Rm914, 725 N. Wolfe Street, Baltimore, MD 21205, USA
| | - Marshall G Hussain Shuler
- The Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Woods Basic Science Building Rm914, 725 N. Wolfe Street, Baltimore, MD 21205, USA; Kavli Neuroscience Discovery Institute, The Johns Hopkins University School of Medicine, 725 N Wolfe Street, Baltimore, MD 21205, USA.
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4
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Shields AK, Suarez M, Wakabayashi KT, Bass CE. Activation of VTA GABA neurons disrupts reward seeking by altering temporal processing. Behav Brain Res 2021; 410:113292. [PMID: 33836166 DOI: 10.1016/j.bbr.2021.113292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 12/30/2022]
Abstract
The role of ventral tegmental area (VTA) dopamine in reward, cue processing, and interval timing is well characterized. Using a combinatorial viral approach to target activating DREADDs (Designer Receptors Exclusively Activated by Designer Drugs, hM3D) to GABAergic neurons in the VTA of male rats, we previously showed that activation disrupts responding to reward-predictive cues. Here we explored how VTA GABA neurons influence the perception of time in two fixed interval (FI) tasks, one where the reward or interval is not paired with predictive cues (Non-Cued FI), and another where the start of the FI is signaled by a constant tone that continues until the rewarded response is emitted (Cued FI). Under vehicle conditions in both tasks, responding was characterized by "scalloping" over the 30 s FI, in which responding increased towards the end of the FI. However, when VTA GABA neurons were activated in the Non-Cued FI, the time between the end of the 30 s interval and when the rats made a reinforced response increased. Additionally, post-reinforcement pauses and overall session length increased. In the Cued FI task, VTA GABA activation produced erratic responding, with a decrease in earned rewards. Thus, while both tasks were disrupted by VTA GABA activation, responding that is constrained by a cue was more sensitive to this manipulation, possibly due to convergent effects on timing and cue processing. Together these results demonstrate that VTA GABA activity disrupts the perception of interval timing, particularly when the timing is set by cues.
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Affiliation(s)
- Andrea K Shields
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, 14214, United States
| | - Mauricio Suarez
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, 14214, United States; Clinical Research Institute on Addictions, University at Buffalo, State University of New York, Buffalo, NY, 14203, United States
| | - Ken T Wakabayashi
- Department of Psychology, University of Nebraska-Lincoln, 1220 T. Street, Lincoln, NE, 68588, United States
| | - Caroline E Bass
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, 14214, United States; Clinical Research Institute on Addictions, University at Buffalo, State University of New York, Buffalo, NY, 14203, United States.
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5
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Timing behavior in genetic murine models of neurological and psychiatric diseases. Exp Brain Res 2021; 239:699-717. [PMID: 33404792 DOI: 10.1007/s00221-020-06021-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/16/2020] [Indexed: 01/17/2023]
Abstract
How timing behavior is altered in different neurodevelopmental and neurodegenerative disorders is a contemporary research question. Genetic murine models (GMM) that offer high construct validity also serve as useful tools to investigate this question. But the literature on timing behavior of different GMMs largely remains to be consolidated. The current paper addresses this gap by reviewing studies that have been conducted with GMMs of neurodevelopmental (e.g. ADHD, schizophrenia, autism spectrum disorder), neurodegenerative disorders (e.g., Alzheimer's disease, Huntington's disease) as well as circadian and other mutant lines. The review focuses on those studies that specifically utilized the peak interval procedure to improve the comparability of findings both within and between different disease models. The reviewed studies revealed timing deficits that are characteristic of different disorders. Specifically, Huntington's disease models had weaker temporal control over the termination of their anticipatory responses, Alzheimer's disease models had earlier timed responses, schizophrenia models had weaker temporal control, circadian mutants had shifted timed responses consistent with shifts in the circadian periods. The differences in timing behavior were less consistent for other conditions such as attention deficit and hyperactivity disorder and mutations related to intellectual disability. We discuss the implications of these findings for the neural basis of an internal stopwatch. Finally, we make methodological recommendations for future research for improving the comparability of the timing behavior across different murine models.
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6
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Lemoine L, Lunven M, Bapst B, Cleret de Langavant L, de Gardelle V, Bachoud-Lévi AC. The specific role of the striatum in interval timing: The Huntington’s disease model. NEUROIMAGE: CLINICAL 2021; 32:102865. [PMID: 34749287 PMCID: PMC8569718 DOI: 10.1016/j.nicl.2021.102865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/27/2021] [Accepted: 10/22/2021] [Indexed: 11/21/2022] Open
Abstract
Patients with Huntington’s Disease (HD) report a temporal deficit in daily life. We tested HD gene carriers and controls in spatial (cm) and temporal (s) tasks. Early stage HD patients, but not presymptomatic carriers, were more impaired in time. Striatal volume was associated with the temporal deficit in gene carriers. Evaluation of interval timing processing should be used as a clinical tool.
Time processing over intervals of hundreds of milliseconds to minutes, also known as interval timing, is associated with the striatum. Huntington’s disease patients (HD) with striatal degeneration have impaired interval timing, but the extent and specificity of these deficits remain unclear. Are they specific to the temporal domain, or do they extend to the spatial domain too? Do they extend to both the perception and production of interval timing? Do they appear before motor symptoms in Huntington’s disease (Pre-HD)? We addressed these issues by assessing both temporal abilities (in the seconds range) and spatial abilities (in the cm range) in 20 Pre-HD, 25 HD patients, and 25 healthy Controls, in discrimination, bisection and production paradigms. In addition, all participants completed a questionnaire assessing temporal and spatial disorientation in daily life, and the gene carriers (i.e., HD and Pre-HD participants) underwent structural brain MRI. Overall, HD patients were more impaired in the temporal than in the spatial domain in the behavioral tasks, and expressed a greater disorientation in the temporal domain in the daily life questionnaire. In contrast, Pre-HD participants showed no sign of a specific temporal deficit. Furthermore, MRI analyses indicated that performances in the temporal discrimination task were associated with a larger striatal grey matter volume in the striatum in gene carriers. Altogether, behavioral, brain imaging and questionnaire data support the hypothesis that the striatum is a specific component of interval timing processes. Evaluations of temporal disorientation and interval timing processing could be used as clinical tools for HD patients.
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7
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Kamada T, Hata T. Striatal dopamine D1 receptors control motivation to respond, but not interval timing, during the timing task. ACTA ACUST UNITED AC 2020; 28:24-29. [PMID: 33323499 PMCID: PMC7747650 DOI: 10.1101/lm.052266.120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 10/05/2020] [Indexed: 11/24/2022]
Abstract
Dopamine plays a critical role in behavioral tasks requiring interval timing (time perception in a seconds-to-minutes range). Although some studies demonstrate the role of dopamine receptors as a controller of the speed of the internal clock, other studies demonstrate their role as a controller of motivation. Both D1 dopamine receptors (D1DRs) and D2 dopamine receptors (D2DRs) within the dorsal striatum may play a role in interval timing because the dorsal striatum contains rich D1DRs and D2DRs. However, relative to D2DRs, the precise role of D1DRs within the dorsal striatum in interval timing is unclear. To address this issue, rats were trained on the peak-interval 20-sec procedure, and D1DR antagonist SCH23390 was infused into the bilateral dorsocentral striatum before behavioral sessions. Our results showed that the D1DR blockade drastically reduced the maximum response rate and increased the time to start responses with no effects on the time to terminate responses. These findings suggest that the D1DRs within the dorsal striatum are required for motivation to respond, but not for modulation of the internal clock speed.
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Affiliation(s)
- Taisuke Kamada
- Organization for Research Initiatives and Development, Doshisha University, Tatara-Miyakodani, Kyotanabe, Kyoto 610-0394, Japan.,Faculty of Psychology, Doshisha University, Tatara-Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
| | - Toshimichi Hata
- Faculty of Psychology, Doshisha University, Tatara-Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
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8
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Balcı F, Freestone D. The Peak Interval Procedure in Rodents: A Tool for Studying the Neurobiological Basis of Interval Timing and Its Alterations in Models of Human Disease. Bio Protoc 2020; 10:e3735. [PMID: 33659396 PMCID: PMC7854006 DOI: 10.21769/bioprotoc.3735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 11/02/2022] Open
Abstract
Animals keep track of time intervals in the seconds to minutes range with, on average, high accuracy but substantial trial-to-trial variability. The ability to detect the statistical signatures of such timing behavior is an indispensable feature of a good and theoretically-tractable testing procedure. A widely used interval timing procedure is the peak interval (PI) procedure, where animals learn to anticipate rewards that become available after a fixed delay. After learning, they cluster their responses around that reward-availability time. The in-depth analysis of such timed anticipatory responses leads to the understanding of an internal timing mechanism, that is, the processing dynamics and systematic biases of the brain's clock. This protocol explains in detail how the PI procedure can be implemented in rodents, from training through testing to analysis. We showcase both trial-by-trial and trial-averaged analytical methods as a window into these internal processes. This protocol has the advantages of capturing timing behavior in its full-complexity in a fashion that allows for a theoretical treatment of the data.
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Affiliation(s)
- Fuat Balcı
- Koç University, Department of Psychology, Istanbul, Turkey
| | - David Freestone
- William Paterson University, Department of Psychology, NJ, United States
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9
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Marinho V, Pinto GR, Bandeira J, Oliveira T, Carvalho V, Rocha K, Magalhães F, de Sousa VG, Bastos VH, Gupta D, Orsini M, Teixeira S. Impaired decision-making and time perception in individuals with stroke: Behavioral and neural correlates. Rev Neurol (Paris) 2019; 175:367-376. [PMID: 30922589 DOI: 10.1016/j.neurol.2018.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 01/03/2023]
Abstract
Several studies have demonstrated that stroke subjects present impairment of functions related to decision-making and timing, involving the information processing in the neural circuits of the cerebellum in association with the prefrontal cortex. This review is aimed to identify the gaps, and demonstrate a better understanding of decision-making and timing functions in the patients with stroke. Electronic literature database was searched and the findings of relevant studies were used to explore the mechanisms of decision-making and timing in patients with stroke, as well as the circuit connections in timing mediated by prefrontal cortex and cerebellum. A literature review was conducted with 65 studies that synthesized findings on decision-making and time perception in individuals with stroke. Types of neurobiological modalities in this study included: Relationships among decision-making, time perception, related cognitive aspects (such as discrimination tasks, verbal estimation, bisection tasks, time production and motor reproduction), and motor control. We demonstrate that the timing processes are important for the performance in cognitive tasks and that the cerebellum and prefrontal cortex are involved in decision-making and time perception. In the context, the decision-making is impaired in stroke patients has a great impact on executive functions, and this seems to be important in determining neurobiological aspects relevant to the time interval interpretation.
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Affiliation(s)
- V Marinho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil.
| | - G R Pinto
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - J Bandeira
- Teresina Unified Education Center - CEUT, Teresina-PI, Brazil
| | - T Oliveira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - V Carvalho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - K Rocha
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - F Magalhães
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - V G de Sousa
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil
| | - V H Bastos
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil; Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil
| | - D Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - M Orsini
- Master's Program in Local Development Program, University Center Augusto Motta - UNISUAM, Rio de Janeiro, Brazil
| | - S Teixeira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
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10
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Araiba S, El Massioui N, Brown BL, Doyère V. Duration-specific effects of outcome devaluation in temporal control are differentially sensitive to amount of training. ACTA ACUST UNITED AC 2018; 25:629-633. [PMID: 30442771 PMCID: PMC6239134 DOI: 10.1101/lm.047878.118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 09/16/2018] [Indexed: 11/25/2022]
Abstract
This study demonstrates that overtraining in temporal discrimination modifies temporal stimulus control in a bisection task and produces habitual responding, as evidenced through insensitivity to food devaluation. Rats were trained or overtrained in a 2- versus 8-sec temporal discrimination task, with each duration associated with a lever (left or right) and food (grain or sucrose). Overtraining produced a leftward shift in the bisection point. Devaluation treatment induced a differential loss of responding depending on stimulus duration (short versus long) and the level of training (training versus overtraining). The relationships between timing behavior and habitual behavior are discussed.
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Affiliation(s)
- Sho Araiba
- Graduate Center of the City University of New York, New York, New York 10016, USA
| | - Nicole El Massioui
- Institut des Neurosciences Paris-Saclay (Neuro-PSI), UMR 9197, Université Paris Sud, CNRS, Université Paris Saclay, Orsay 91405, France
| | - Bruce L Brown
- Graduate Center of the City University of New York, New York, New York 10016, USA.,Queens College, Queens, New York 11367, USA
| | - Valérie Doyère
- Institut des Neurosciences Paris-Saclay (Neuro-PSI), UMR 9197, Université Paris Sud, CNRS, Université Paris Saclay, Orsay 91405, France
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De Corte BJ, Wagner LM, Matell MS, Narayanan NS. Striatal dopamine and the temporal control of behavior. Behav Brain Res 2018; 356:375-379. [PMID: 30213664 DOI: 10.1016/j.bbr.2018.08.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 11/17/2022]
Abstract
Striatal dopamine strongly regulates how individuals use time to guide behavior. Dopamine acts on D1- and D2- dopamine receptors in the striatum. However, the relative role of these receptors in the temporal control of behavior is unclear. To assess this, we trained rats on a task in which they decided to start and stop a series of responses based on the passage of time and evaluated how blocking D1 or D2-dopamine receptors in the dorsomedial or dorsolateral striatum impacted performance. D2 blockade delayed the decision to start and stop responding in both regions, and this effect was larger in the dorsomedial striatum. By contrast, dorsomedial D1 blockade delayed stop times, without significantly delaying start times, whereas dorsolateral D1 blockade produced no detectable effects. These findings suggest that striatal dopamine may tune decision thresholds during timing tasks. Furthermore, our data indicate that the dorsomedial striatum plays a key role in temporal control, which may be useful for localizing neural circuits that mediate the temporal control of action.
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Affiliation(s)
| | - Lucia M Wagner
- Department of Neurology, The University of Iowa, Iowa City, IA, 52242, USA; St. Olaf College, Northfield, MN, 55057, USA
| | - Matthew S Matell
- Department of Psychology, Villanova University, Villanova, PA, 19085, USA
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Marinho V, Oliveira T, Rocha K, Ribeiro J, Magalhães F, Bento T, Pinto GR, Velasques B, Ribeiro P, Di Giorgio L, Orsini M, Gupta DS, Bittencourt J, Bastos VH, Teixeira S. The dopaminergic system dynamic in the time perception: a review of the evidence. Int J Neurosci 2017; 128:262-282. [PMID: 28950734 DOI: 10.1080/00207454.2017.1385614] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Dopaminergic system plays a key role in perception, which is an important executive function of the brain. Modulation in dopaminergic system forms an important biochemical underpinning of neural mechanisms of time perception in a very wide range, from milliseconds to seconds to longer daily rhythms. Distinct types of temporal experience are poorly understood, and the relationship between processing of different intervals by the brain has received little attention. A comprehensive understanding of interval timing functions should be sought within a wider context of temporal processing, involving genetic aspects, pharmacological models, cognitive aspects, motor control and the neurological diseases with impaired dopaminergic system. Particularly, an unexplored question is whether the role of dopamine in interval timing can be integrated with the role of dopamine in non-interval timing temporal components. In this review, we explore a wider perspective of dopaminergic system, involving genetic polymorphisms, pharmacological models, executive functions and neurological diseases on the time perception. We conclude that the dopaminergic system has great participation in impact on time perception and neurobiological basis of the executive functions and neurological diseases.
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Affiliation(s)
- Victor Marinho
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil.,b Genetics and Molecular Biology Laboratory, Federal University of Piauí , Parnaíba , Brazil
| | - Thomaz Oliveira
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil.,b Genetics and Molecular Biology Laboratory, Federal University of Piauí , Parnaíba , Brazil
| | - Kaline Rocha
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil
| | - Jéssica Ribeiro
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil
| | - Francisco Magalhães
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil
| | - Thalys Bento
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil
| | - Giovanny R Pinto
- b Genetics and Molecular Biology Laboratory, Federal University of Piauí , Parnaíba , Brazil
| | - Bruna Velasques
- c Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro (IPUB/UFRJ) , Rio de Janeiro , Brazil
| | - Pedro Ribeiro
- c Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro (IPUB/UFRJ) , Rio de Janeiro , Brazil
| | - Luiza Di Giorgio
- c Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro (IPUB/UFRJ) , Rio de Janeiro , Brazil
| | - Marco Orsini
- c Brain Mapping and Sensory Motor Integration Laboratory, Institute of Psychiatry of Federal University of Rio de Janeiro (IPUB/UFRJ) , Rio de Janeiro , Brazil.,d Rehabilitation Science Program, Analysis of Human Movement Laboratory, Augusto Motta University Center (UNISUAM) , Rio de Janeiro , Brazil
| | - Daya S Gupta
- e Department of Biology , Camden County College , Blackwood , NJ , USA
| | - Juliana Bittencourt
- f Biomedical Engineering Program (COPPE), Federal University of Rio de Janeiro (UFRJ) , Rio de Janeiro , Brazil
| | - Victor Hugo Bastos
- g Brain Mapping and Functionality Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil
| | - Silmar Teixeira
- a Brain Mapping and Plasticity Laboratory, Federal University of Piauí (UFPI) , Parnaíba , Brazil
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13
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Interactive roles of the cerebellum and striatum in sub-second and supra-second timing: Support for an initiation, continuation, adjustment, and termination (ICAT) model of temporal processing. Neurosci Biobehav Rev 2016; 71:739-755. [PMID: 27773690 DOI: 10.1016/j.neubiorev.2016.10.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/06/2016] [Accepted: 10/19/2016] [Indexed: 12/29/2022]
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14
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Teixeira S, Magalhães F, Marinho V, Velasques B, Ribeiro P. Proposal for using time estimation training for the treatment of Parkinson’s disease. Med Hypotheses 2016; 95:58-61. [DOI: 10.1016/j.mehy.2016.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/07/2016] [Accepted: 08/31/2016] [Indexed: 01/11/2023]
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15
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Abstract
Under-reporting tobacco consumption is common, although there is lack of evidence whether under-reporting is associated with health risk perception. In this study, smoking topography from 110 smokers was recorded over 24 hours, aiming to capture a representative average of smoking behaviour. Participants significantly under-reported the duration of secondary exposure, and there was a significant interaction between self-report distortion type and risk perception. Analysis showed that smokers under-reporting puff number declared perceiving significantly less susceptibility to acquiring airway diseases, which is correlating significantly with the level of under-reporting. The present findings may suggest that under-reporting smoking behaviour has psychological functions beyond achieving social desirability.
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Doyère V, El Massioui N. A subcortical circuit for time and action: insights from animal research. Curr Opin Behav Sci 2016. [DOI: 10.1016/j.cobeha.2016.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Cheng RK, Tipples J, Narayanan NS, Meck WH. Clock Speed as a Window into Dopaminergic Control of Emotion and Time Perception. TIMING & TIME PERCEPTION 2016. [DOI: 10.1163/22134468-00002064] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Although fear-producing treatments (e.g., electric shock) and pleasure-inducing treatments (e.g., methamphetamine) have different emotional valences, they both produce physiological arousal and lead to effects on timing and time perception that have been interpreted as reflecting an increase in speed of an internal clock. In this commentary, we review the results reported by Fayolle et al. (2015):Behav. Process., 120, 135–140) and Meck (1983: J. Exp. Psychol. Anim. Behav. Process., 9, 171–201) using electric shock and by Maricq et al. (1981: J. Exp. Psychol. Anim. Behav. Process., 7, 18–30) using methamphetamine in a duration-bisection procedure across multiple duration ranges. The psychometric functions obtained from this procedure relate the proportion ‘long’ responses to signal durations spaced between a pair of ‘short’ and ‘long’ anchor durations. Horizontal shifts in these functions can be described in terms of attention or arousal processes depending upon whether they are a fixed number of seconds independent of the timed durations (additive) or proportional to the durations being timed (multiplicative). Multiplicative effects are thought to result from a change in clock speed that is regulated by dopamine activity in the medial prefrontal cortex. These dopaminergic effects are discussed within the context of the striatal beat frequency model of interval timing (Matell & Meck, 2004:Cogn. Brain Res.,21, 139–170) and clinical implications for the effects of emotional reactivity on temporal cognition (Parker et al., 2013:Front. Integr. Neurosci., 7, 75).
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Gu BM, van Rijn H, Meck WH. Oscillatory multiplexing of neural population codes for interval timing and working memory. Neurosci Biobehav Rev 2014; 48:160-85. [PMID: 25454354 DOI: 10.1016/j.neubiorev.2014.10.008] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 10/06/2014] [Accepted: 10/10/2014] [Indexed: 01/01/2023]
Abstract
Interval timing and working memory are critical components of cognition that are supported by neural oscillations in prefrontal-striatal-hippocampal circuits. In this review, the properties of interval timing and working memory are explored in terms of behavioral, anatomical, pharmacological, and neurophysiological findings. We then describe the various neurobiological theories that have been developed to explain these cognitive processes - largely independent of each other. Following this, a coupled excitatory - inhibitory oscillation (EIO) model of temporal processing is proposed to address the shared oscillatory properties of interval timing and working memory. Using this integrative approach, we describe a hybrid model explaining how interval timing and working memory can originate from the same oscillatory processes, but differ in terms of which dimension of the neural oscillation is utilized for the extraction of item, temporal order, and duration information. This extension of the striatal beat-frequency (SBF) model of interval timing (Matell and Meck, 2000, 2004) is based on prefrontal-striatal-hippocampal circuit dynamics and has direct relevance to the pathophysiological distortions observed in time perception and working memory in a variety of psychiatric and neurological conditions.
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Affiliation(s)
- Bon-Mi Gu
- Department of Psychology, University of Michigan, Ann Arbor, MI, USA
| | - Hedderik van Rijn
- Department of Psychology, University of Groningen, Groningen, The Netherlands
| | - Warren H Meck
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.
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Oleson EB, Cachope R, Fitoussi A, Tsutsui K, Wu S, Gallegos JA, Cheer JF. Cannabinoid receptor activation shifts temporally engendered patterns of dopamine release. Neuropsychopharmacology 2014; 39:1441-52. [PMID: 24345819 PMCID: PMC3988547 DOI: 10.1038/npp.2013.340] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 11/11/2013] [Accepted: 12/08/2013] [Indexed: 11/09/2022]
Abstract
The ability to discern temporally pertinent environmental events is essential for the generation of adaptive behavior in conventional tasks, and our overall survival. Cannabinoids are thought to disrupt temporally controlled behaviors by interfering with dedicated brain timing networks. Cannabinoids also increase dopamine release within the mesolimbic system, a neural pathway generally implicated in timing behavior. Timing can be assessed using fixed-interval (FI) schedules, which reinforce behavior on the basis of time. To date, it remains unknown how cannabinoids modulate dopamine release when responding under FI conditions, and for that matter, how subsecond dopamine release is related to time in these tasks. In the present study, we hypothesized that cannabinoids would accelerate timing behavior in an FI task while concurrently augmenting a temporally relevant pattern of dopamine release. To assess this possibility, we measured subsecond dopamine concentrations in the nucleus accumbens while mice responded for food under the influence of the cannabinoid agonist WIN 55,212-2 in an FI task. Our data reveal that accumbal dopamine concentrations decrease proportionally to interval duration--suggesting that dopamine encodes time in FI tasks. We further demonstrate that WIN 55,212-2 dose-dependently increases dopamine release and accelerates a temporal behavioral response pattern in a CB1 receptor-dependent manner--suggesting that cannabinoid receptor activation modifies timing behavior, in part, by augmenting time-engendered patterns of dopamine release. Additional investigation uncovered a specific role for endogenous cannabinoid tone in timing behavior, as elevations in 2-arachidonoylglycerol, but not anandamide, significantly accelerated the temporal response pattern in a manner akin to WIN 55,212-2.
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Affiliation(s)
- Erik B Oleson
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA,University of Colorado Denver, Denver, CO, USA
| | - Roger Cachope
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Aurelie Fitoussi
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Kimberly Tsutsui
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Sharon Wu
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Joseph F Cheer
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA,Department of Anatomy and Neurobiology, University of Maryland School of Medicine, 20 Penn Street, Baltimore, MD 21201, USA, Tel: +1 410 706 0112, Fax: +1 410 706 2512, E-mail:
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Cope TE, Grube M, Mandal A, Cooper FE, Brechany U, Burn DJ, Griffiths TD. Subthalamic deep brain stimulation in Parkinson׳s disease has no significant effect on perceptual timing in the hundreds of milliseconds range. Neuropsychologia 2014; 57:29-37. [PMID: 24613477 PMCID: PMC4022837 DOI: 10.1016/j.neuropsychologia.2014.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 02/20/2014] [Accepted: 02/22/2014] [Indexed: 11/07/2022]
Abstract
Bilateral, high-frequency stimulation of the basal ganglia (STN-DBS) is in widespread use for the treatment of the motor symptoms of Parkinson׳s disease (PD). We present here the first psychophysical investigation of the effect of STN-DBS upon perceptual timing in the hundreds of milliseconds range, with both duration-based (absolute) and beat-based (relative) tasks; 13 patients with PD were assessed with their STN-DBS ‘on’, ‘off’, and then ‘on’ again. Paired parametric analyses revealed no statistically significant differences for any task according to DBS status. We demonstrate, from the examination of confidence intervals, that any functionally relevant effect of STN-DBS on relative perceptual timing is statistically unlikely. For absolute, duration-based timing, we demonstrate that the activation of STN-DBS may either worsen performance or have no effect, but that it is unlikely to lead to significant improvement. Although these results are negative they have important implications for our understanding of perceptual timing and its relationship to motor functions within the timing network of the brain. They imply that the mechanisms involved in the perceptual processing of temporal information are likely to be functionally independent from those that underpin movement. Further, they suggest that the connections between STN and the subtantia nigra and globus pallidus are unlikely to be critical to beat-based perceptual timing. We assessed the effect of STN-DBS on both duration- and beat-based perceptual timing. DBS activation did not profoundly affect beat-based perceptual timing. An effect of DBS on duration-based timing was not demonstrated but cannot be excluded. Connections between STN and cerebellum are unlikely to be critical to perceptual timing.
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Affiliation(s)
- Thomas E Cope
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom.
| | - Manon Grube
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Arnab Mandal
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Freya E Cooper
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Una Brechany
- Institute for Ageing and Health, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - David J Burn
- Institute for Ageing and Health, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Timothy D Griffiths
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom
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Yin B, Meck WH. Comparison of interval timing behaviour in mice following dorsal or ventral hippocampal lesions with mice having δ-opioid receptor gene deletion. Philos Trans R Soc Lond B Biol Sci 2014; 369:20120466. [PMID: 24446500 DOI: 10.1098/rstb.2012.0466] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Mice with cytotoxic lesions of the dorsal hippocampus (DH) underestimated 15 s and 45 s target durations in a bi-peak procedure as evidenced by proportional leftward shifts of the peak functions that emerged during training as a result of decreases in both 'start' and 'stop' times. In contrast, mice with lesions of the ventral hippocampus (VH) displayed rightward shifts that were immediately present and were largely limited to increases in the 'stop' time for the 45 s target duration. Moreover, the effects of the DH lesions were congruent with the scalar property of interval timing in that the 15 s and 45 s functions superimposed when plotted on a relative timescale, whereas the effects of the VH lesions violated the scalar property. Mice with DH lesions also showed enhanced reversal learning in comparison to control and VH lesioned mice. These results are compared with the timing distortions observed in mice lacking δ-opioid receptors (Oprd1(-/-)) which were similar to mice with DH lesions. Taken together, these results suggest a balance between hippocampal-striatal interactions for interval timing and demonstrate possible functional dissociations along the septotemporal axis of the hippocampus in terms of motivation, timed response thresholds and encoding in temporal memory.
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Affiliation(s)
- Bin Yin
- Department of Psychology and Neuroscience, Duke University, , Durham, NC 27708, USA
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Abstract
The dopamine clock hypothesis suggests that the dopamine level determines the speed of the hypothetical internal clock. However, dopaminergic function has also been implicated for motivation and thus the effect of dopaminergic manipulations on timing behavior might also be independently mediated by altered motivational state. Studies that investigated the effect of motivational manipulations on peak responding are reviewed in this paper. The majority of these studies show that a higher reward magnitude leads to a leftward shift, whereas reward devaluation leads to a rightward shift in the initiation of timed anticipatory behavior, typically in the absence of an effect on the timing of response termination. Similar behavioral effects are also present in a number of studies that investigated the effect of dopamine agonists and dopamine-related genetic factors on peak responding. These results can be readily accounted for by independent modulation of decision-thresholds for the initiation and termination of timed responding.
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Affiliation(s)
- Fuat Balcı
- Department of Psychology, Koç University, Rumelifeneri yolu, Sarıyer, Istanbul, Turkey
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Heilbronner SR, Meck WH. Dissociations between interval timing and intertemporal choice following administration of fluoxetine, cocaine, or methamphetamine. Behav Processes 2014; 101:123-34. [PMID: 24135569 PMCID: PMC4081038 DOI: 10.1016/j.beproc.2013.09.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 09/19/2013] [Accepted: 09/21/2013] [Indexed: 12/26/2022]
Abstract
The goal of our study was to characterize the relationship between intertemporal choice and interval timing, including determining how drugs that modulate brain serotonin and dopamine levels influence these two processes. In Experiment 1, rats were tested on a standard 40-s peak-interval procedure following administration of fluoxetine (3, 5, or 8 mg/kg) or vehicle to assess basic effects on interval timing. In Experiment 2, rats were tested in a novel behavioral paradigm intended to simultaneously examine interval timing and impulsivity. Rats performed a variant of the bi-peak procedure using 10-s and 40-s target durations with an additional "defection" lever that provided the possibility of a small, immediate reward. Timing functions remained relatively intact, and 'patience' across subjects correlated with peak times, indicating a negative relationship between 'patience' and clock speed. We next examined the effects of fluoxetine (5 mg/kg), cocaine (15 mg/kg), or methamphetamine (1 mg/kg) on task performance. Fluoxetine reduced impulsivity as measured by defection time without corresponding changes in clock speed. In contrast, cocaine and methamphetamine both increased impulsivity and clock speed. Thus, variations in timing may mediate intertemporal choice via dopaminergic inputs. However, a separate, serotonergic system can affect intertemporal choice without affecting interval timing directly. This article is part of a Special Issue entitled: Associative and Temporal Learning.
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Affiliation(s)
- Sarah R Heilbronner
- Department of Pharmacology & Physiology, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Warren H Meck
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA.
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Cope TE, Grube M, Singh B, Burn DJ, Griffiths TD. The basal ganglia in perceptual timing: timing performance in Multiple System Atrophy and Huntington's disease. Neuropsychologia 2013; 52:73-81. [PMID: 24135486 PMCID: PMC3905186 DOI: 10.1016/j.neuropsychologia.2013.09.039] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 09/26/2013] [Accepted: 09/27/2013] [Indexed: 11/26/2022]
Abstract
The timing of perceptual events depends on an anatomically and functionally connected network comprising basal ganglia, cerebellum, pre-frontal cortex and supplementary motor area. Recent studies demonstrate the cerebellum to be involved in absolute, duration-based timing, but not in relative timing based on a regular beat. Conversely, functional involvement of the striatum is observed in relative timing, but its role in absolute timing is unclear. This work tests the specific role of the basal ganglia in the perceptual timing of auditory events. It aims to distinguish the hypothesised unified model of time perception (Teki, Grube, & Griffiths, 2012), in which the striatum is a mandatory component for all timing tasks, from a modular system in which they subserve relative timing, with absolute timing processed by the cerebellum. Test groups comprised individuals with Multiple System Atrophy, a disorder in which similar pathology can produce clinical deficits associated with dysfunction of the cerebellum (MSA-C, n=8) or striatum (MSA-P, n=10), and early symptomatic Huntington's disease (HD, n=14). Individuals with chronic autoimmune peripheral neuropathy (n=11) acted as controls. Six adaptive tasks were carried out to assess perceptual thresholds for absolute timing through duration discrimination for sub- and supra-second time intervals, and relative timing through the detection of beat-based regularity and irregularity, detection of a delay within an isochronous sequence, and the discrimination of sequences with metrical structure. All three patient groups exhibited impairments in performance in comparison with the control group for all tasks, and severity of impairment was significantly correlated with disease progression. No differences were demonstrated between MSA-C and MSA-P, and the most severe impairments were observed in those with HD. The data support an obligatory role for the basal ganglia in all tested timing tasks, both absolute and relative, as predicted by the unified model. The results are not compatible with models of a brain timing network based upon independent modules. Patients with basal ganglia disease undertook a battery of perceptual timing tasks. All patients displayed poorer performance than neurological control participants. Performance in Huntington's disease was worse than Multiple System Atrophy. Poorer performance was significantly correlated with disease progression. These findings support the hypothesised unified model of time perception.
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Affiliation(s)
- Thomas E Cope
- Department of Clinical Neurosciences, School of Clinical Medicine, Addenbrookes Hospital, Cambridge CB2 0SP.
| | - Manon Grube
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Baldev Singh
- Walkergate Park Centre For Neurorehabilitation and Neuropsychiatry, Newcastle-upon-Tyne, United Kingdom
| | - David J Burn
- Institute for Ageing and Health, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Timothy D Griffiths
- Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, United Kingdom
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Abstract
In 1984, there was considerable evidence that the hippocampus was important for spatial learning and some evidence that it was also involved in duration discrimination. The article "Hippocampus, Time, and Memory" (Meck, Church, & Olton, 1984), however, was the first to isolate the effects of hippocampal damage on specific stages of temporal processing. In this review, to celebrate the 30th anniversary of Behavioral Neuroscience, we look back on factors that contributed to the long-lasting influence of this article. The major results were that a fimbria-fornix lesion (a) interferes with the ability to retain information in temporal working memory, and (b) distorts the content of temporal reference memory, but (c) did not decrease sensitivity to signal duration. This was the first lesion experiment in which the results were interpreted by a well-developed theory of behavior (scalar timing theory). It has led to extensive research on the role of the hippocampus in temporal processing by many investigators. The most important ones are the development of computational models with plausible neural mechanisms (such as the striatal beat-frequency model of interval timing), the use of multiple behavioral measures of timing, and empirical research on the neural mechanisms of timing and temporal memory using ensemble recording of neurons in prefrontal-striatal-hippocampal circuits.
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Affiliation(s)
- Warren H. Meck
- Department of Psychology and Neuroscience, Duke University
| | - Russell M. Church
- Department of Cognitive, Linguistic, and Psychological Sciences,
Brown University
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Pharmacological studies of performance on the free-operant psychophysical procedure. Behav Processes 2013; 95:71-89. [PMID: 23428704 DOI: 10.1016/j.beproc.2013.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 02/10/2013] [Accepted: 02/11/2013] [Indexed: 12/30/2022]
Abstract
In the free-operant psychophysical procedure (FOPP), reinforcement is provided intermittently for responding on lever A in the first half and lever B in the second half of a trial. Temporal differentiation is measured from the psychometric function (percent responding on B, %B, versus time from trial onset, t), the index of timing being T50, the value of t at %B=50. T50 is reduced by acute treatment with 5-hydroxytryptamine (5-HT1A, 5-HT2A) and dopamine (D1-like, D2-like) receptor agonists. The effects of the agonists can be reversed by the respective antagonists of these receptors. Evidence is reviewed suggesting that the effect of endogenous 5-HT is mediated by 5-HT2A receptors and the effect of endogenous dopamine by D1-like receptors. Data are presented on the effects of lesions of the prefrontal cortex and corpus striatum on the sensitivity of performance on the FOPP to D1-like and D2-like receptor agonists. Lesions of the nucleus accumbens, but not the dorsal striatum or prefrontal cortex, attenuated the effects of a D1-like receptor agonist, 6-chloro-2,3,4,5-tetrahydro-1-phenyl-1H-3-benzazepine [SKF-81297], but not a D2-like receptor agonist, quinpirole, on T50. The results indicate that a population of D1-like receptors in the ventral striatum may contribute to the control of timing performance on the FOPP.
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Lake JI, Meck WH. Differential effects of amphetamine and haloperidol on temporal reproduction: Dopaminergic regulation of attention and clock speed. Neuropsychologia 2013; 51:284-92. [DOI: 10.1016/j.neuropsychologia.2012.09.014] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/03/2012] [Accepted: 09/06/2012] [Indexed: 11/26/2022]
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Evaluation of rate-dependency and internal clock effects of d-amphetamine. Behav Processes 2012; 90:428-32. [DOI: 10.1016/j.beproc.2012.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 03/08/2012] [Accepted: 04/12/2012] [Indexed: 11/21/2022]
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Macdonald CJ, Cheng RK, Meck WH. Acquisition of "Start" and "Stop" response thresholds in peak-interval timing is differentially sensitive to protein synthesis inhibition in the dorsal and ventral striatum. Front Integr Neurosci 2012; 6:10. [PMID: 22435054 PMCID: PMC3303086 DOI: 10.3389/fnint.2012.00010] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 02/28/2012] [Indexed: 01/07/2023] Open
Abstract
Time-based decision-making in peak-interval timing procedures involves the setting of response thresholds for the initiation (“Start”) and termination (“Stop”) of a response sequence that is centered on a target duration. Using intracerebral infusions of the protein synthesis inhibitor anisomycin, we report that the acquisition of the “Start” response depends on normal functioning (including protein synthesis) in the dorsal striatum (DS), but not the ventral striatum (VS). Conversely, disruption of the VS, but not the DS, impairs the acquisition of the “Stop” response. We hypothesize that the dorsal and ventral regions of the striatum function as a competitive neural network that encodes the temporal boundaries marking the beginning and end of a timed response sequence.
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Meck WH, Cheng RK, MacDonald CJ, Gainetdinov RR, Caron MG, Çevik MÖ. Gene-dose dependent effects of methamphetamine on interval timing in dopamine-transporter knockout mice. Neuropharmacology 2012; 62:1221-9. [DOI: 10.1016/j.neuropharm.2011.01.042] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 01/19/2011] [Accepted: 01/24/2011] [Indexed: 10/18/2022]
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Williams CL. Sex differences in counting and timing. Front Integr Neurosci 2012; 5:88. [PMID: 22319476 PMCID: PMC3251826 DOI: 10.3389/fnint.2011.00088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Accepted: 12/02/2011] [Indexed: 12/27/2022] Open
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Coull JT, Morgan H, Cambridge VC, Moore JW, Giorlando F, Adapa R, Corlett PR, Fletcher PC. Ketamine perturbs perception of the flow of time in healthy volunteers. Psychopharmacology (Berl) 2011; 218:543-56. [PMID: 21603893 PMCID: PMC3210361 DOI: 10.1007/s00213-011-2346-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 05/04/2011] [Indexed: 11/29/2022]
Abstract
RATIONALE Disturbances in the subjective experience of time have been observed both in schizophrenia and following acute administration of ketamine. However, effects of ketamine on more objective timing tasks have not yet been measured in humans, nor has it been established that timing effects are not merely secondary to a more general dysfunction in working memory (WM). OBJECTIVE AND METHODS In a double-blind placebo-controlled crossover study, we characterised the effects of ketamine (100 ng/ml blood plasma level) on performance of perceptual timing and colour discrimination tasks, which were matched for WM and attentional demands. To test the ubiquity of ketamine's effects on timing, we also examined two distinct measures of temporal predictability. RESULTS Ketamine significantly distorted the subjective experience of time as measured by the Clinician-Administered Dissociative States Scales. Critically, ketamine also impaired accuracy on the perceptual timing task while having no effect on performance of the colour perception task. Although ketamine did not impair the ability to use prelearned temporal (or spatial) cues to predict target onset (or location), it did slow reaction times at long delays following non-informative neutral cues, suggesting an impaired ability to use the unidirectional flow of time itself to make temporal predictions. CONCLUSIONS Ketamine induced selective impairments in timing, which could not be explained by more fundamental effects on the ability to hold information in WM. Rather our collected findings suggest that ketamine may disturb timing by selectively impairing the way in which information is temporally manipulated within WM.
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Affiliation(s)
- Jennifer T Coull
- Laboratoire de Neurobiologie de la Cognition, Université de Provence & CNRS, Pôle 3C, 3 Place Victor Hugo, 13331 Marseille Cedex 3, France.
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Agostino PV, Golombek DA, Meck WH. Unwinding the molecular basis of interval and circadian timing. Front Integr Neurosci 2011; 5:64. [PMID: 22022309 PMCID: PMC3196210 DOI: 10.3389/fnint.2011.00064] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Accepted: 09/30/2011] [Indexed: 12/01/2022] Open
Abstract
Neural timing mechanisms range from the millisecond to diurnal, and possibly annual, frequencies. Two of the main processes under study are the interval timer (seconds-to-minute range) and the circadian clock. The molecular basis of these two mechanisms is the subject of intense research, as well as their possible relationship. This article summarizes data from studies investigating a possible interaction between interval and circadian timing and reviews the molecular basis of both mechanisms, including the discussion of the contribution from studies of genetically modified animal models. While there is currently no common neurochemical substrate for timing mechanisms in the brain, circadian modulation of interval timing suggests an interaction of different frequencies in cerebral temporal processes.
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Affiliation(s)
- Patricia V Agostino
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes Buenos Aires, Argentina
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35
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Pleil KE, Cordes S, Meck WH, Williams CL. Rapid and acute effects of estrogen on time perception in male and female rats. Front Integr Neurosci 2011; 5:63. [PMID: 22016725 PMCID: PMC3192991 DOI: 10.3389/fnint.2011.00063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Accepted: 09/28/2011] [Indexed: 12/14/2022] Open
Abstract
Sex differences in the rapid and acute effects of estradiol on time perception were investigated in adult male and female Sprague-Dawley rats. Because estradiol has been shown to increase striatal dopamine release, it may be able to modify time perception and timed performance by increasing the speed of an internal clock in a manner similar to indirect dopamine agonists such as amphetamine and cocaine. Two groups of females (neonatally estradiol-treated/adult ovariectomized and neonatally oil-treated/adult ovariectomized) and two groups of males (neonatally castrated and adult castrated) were trained in a 2 vs. 8-s duration bisection procedure and tested using intermediate signal durations. After obtaining oil-injected baseline psychometric functions over several days, rats were administered 5 μg of estradiol for 4 days and behaviorally evaluated 30 min following each injection. This oil-estradiol administration cycle was subsequently repeated three times following the re-establishment of baseline training. Results revealed significant sex differences in the initial baseline functions that were not modifiable by organizational hormones, with males' duration bisection functions shifted horizontally to the left of females'. Upon the first administration of estradiol, females, but not males, showed a significant, transient leftward shift in their bisection functions, indicative of an increase in clock speed. After extensive retraining in the duration bisection procedure, rats that were exposed to gonadal hormones during the first week of life showed a significant rightward shift in their bisection functions on the fourth day of estradiol administration during each cycle, suggesting a decrease in clock speed. Taken together, our results support the view that there are multiple mechanisms of estrogens' action in the striatum that modulate dopaminergic activity and are differentially organized by gonadal steroids during early brain development.
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Affiliation(s)
- Kristen E Pleil
- Bowles Center for Alcohol Studies, University of North Carolina Chapel Hill, NC, USA
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36
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Allman MJ, Meck WH. Pathophysiological distortions in time perception and timed performance. ACTA ACUST UNITED AC 2011; 135:656-77. [PMID: 21921020 DOI: 10.1093/brain/awr210] [Citation(s) in RCA: 291] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Distortions in time perception and timed performance are presented by a number of different neurological and psychiatric conditions (e.g. Parkinson's disease, schizophrenia, attention deficit hyperactivity disorder and autism). As a consequence, the primary focus of this review is on factors that define or produce systematic changes in the attention, clock, memory and decision stages of temporal processing as originally defined by Scalar Expectancy Theory. These findings are used to evaluate the Striatal Beat Frequency Theory, which is a neurobiological model of interval timing based upon the coincidence detection of oscillatory processes in corticostriatal circuits that can be mapped onto the stages of information processing proposed by Scalar Timing Theory.
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Affiliation(s)
- Melissa J Allman
- Kennedy Krieger Institute, and Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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37
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Yin B, Troger AB. Exploring the 4th dimension: hippocampus, time, and memory revisited. Front Integr Neurosci 2011; 5:36. [PMID: 21886612 PMCID: PMC3154297 DOI: 10.3389/fnint.2011.00036] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 07/29/2011] [Indexed: 11/13/2022] Open
Affiliation(s)
- Bin Yin
- Department of Psychology and Neuroscience, Duke University Durham, NC, USA
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38
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The function of dopaminergic neural signal transmission in auditory pulse perception: evidence from dopaminergic treatment in Parkinson's patients. Behav Brain Res 2011; 225:270-5. [PMID: 21787806 DOI: 10.1016/j.bbr.2011.07.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 07/04/2011] [Accepted: 07/10/2011] [Indexed: 11/21/2022]
Abstract
Auditory pulse perception, which is the perception of relatively salient and regularly appearing events in an acoustic sequence, is a necessary function in humans and has been suggested to rely on basal ganglia function. Our study investigated the effect dopamine depletion has on the auditory pulse perception in Parkinson's disease (PD). We examined PD patients and healthy seniors in this study, and all participants performed a pulse perception task and a motor control task. The pulse perception task consisted of a two alternative forced choice task in which subjects had to identify stimuli as metrical or non-metrical. We tested PD patients before and after the administration of l-3,4-dihydroxyphenylalanin (l-DOPA). The healthy control group performed the same tasks twice. PD patients that were dopamine depleted performed the pulse perception task equally well and as fast as did the healthy control group. However, after the administration of l-DOPA, PD patients performed the pulse perception task significantly faster than they did before the pharmacological intervention, which showed that pulse perception can be modulated by dopaminergic stimulation. These findings indicate that pulse perception relies on dopaminergic mechanisms but is not affected by dopamine depletion in the early stages of PD.
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Quinpirole-induced sensitization to noisy/sparse periodic input: temporal synchronization as a component of obsessive-compulsive disorder. Neuroscience 2011; 179:143-50. [DOI: 10.1016/j.neuroscience.2011.01.048] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 01/19/2011] [Accepted: 01/22/2011] [Indexed: 11/22/2022]
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Coull JT, Cheng RK, Meck WH. Neuroanatomical and neurochemical substrates of timing. Neuropsychopharmacology 2011; 36:3-25. [PMID: 20668434 PMCID: PMC3055517 DOI: 10.1038/npp.2010.113] [Citation(s) in RCA: 520] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Revised: 06/29/2010] [Accepted: 06/29/2010] [Indexed: 11/09/2022]
Abstract
We all have a sense of time. Yet, there are no sensory receptors specifically dedicated for perceiving time. It is an almost uniquely intangible sensation: we cannot see time in the way that we see color, shape, or even location. So how is time represented in the brain? We explore the neural substrates of metrical representations of time such as duration estimation (explicit timing) or temporal expectation (implicit timing). Basal ganglia (BG), supplementary motor area, cerebellum, and prefrontal cortex have all been linked to the explicit estimation of duration. However, each region may have a functionally discrete role and will be differentially implicated depending upon task context. Among these, the dorsal striatum of the BG and, more specifically, its ascending nigrostriatal dopaminergic pathway seems to be the most crucial of these regions, as shown by converging functional neuroimaging, neuropsychological, and psychopharmacological investigations in humans, as well as lesion and pharmacological studies in animals. Moreover, neuronal firing rates in both striatal and interconnected frontal areas vary as a function of duration, suggesting a neurophysiological mechanism for the representation of time in the brain, with the excitatory-inhibitory balance of interactions among distinct subtypes of striatal neuron serving to fine-tune temporal accuracy and precision.
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Affiliation(s)
- Jennifer T Coull
- Laboratoire de Neurobiologie de la Cognition, Pole 3C, Université de Provence and CNRS, Marseille, France.
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41
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Jones CRG, Jahanshahi M. The substantia nigra, the basal ganglia, dopamine and temporal processing. JOURNAL OF NEURAL TRANSMISSION. SUPPLEMENTUM 2010:161-71. [PMID: 20411776 DOI: 10.1007/978-3-211-92660-4_13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
It has been proposed that the basal ganglia are important to the temporal processing of milliseconds- and seconds-range intervals, both within the motor and perceptual domains. This review summarizes and discuses evidence from animal, pharmacological, clinical, and imaging research that supports this proposal, with particular reference to the role of the substantia nigra (SN).
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Affiliation(s)
- Catherine R G Jones
- Department of Psychology and Human Development, Institute of Education, University of London, London, UK.
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42
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Motivational effects on interval timing in dopamine transporter (DAT) knockdown mice. Brain Res 2010; 1325:89-99. [DOI: 10.1016/j.brainres.2010.02.034] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2009] [Revised: 02/08/2010] [Accepted: 02/09/2010] [Indexed: 11/23/2022]
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Johnson RN, Ward RD, Odum AL. Baseline training history and effects of methamphetamine on performance of pigeons on an interval-bisection task. Behav Processes 2010; 84:484-9. [PMID: 20170715 DOI: 10.1016/j.beproc.2010.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2009] [Revised: 02/04/2010] [Accepted: 02/07/2010] [Indexed: 11/19/2022]
Abstract
Length of baseline training influences how methamphetamine disrupts temporal performance under a peak interval schedule. Acute methamphetamine produces overestimation of time following relatively brief training, but following extended training, methamphetamine produces more general loss of stimulus control. The current study extends the study of training length on the effects of methamphetamine to an interval-bisection procedure. Six pigeons responded under a psychophysical choice procedure in which responses to one key color were correct after presentation of four shorter sample durations and responses to another key color were correct after presentation of four longer sample durations. One group of three pigeons received briefer baseline training (45 sessions), while another group received more extended training (223 sessions) prior to methamphetamine administration. There was no evidence of overestimation of time or generalized loss of stimulus control in either group. Sensitivity (precision of timing) was higher in the group with more extensive training and was disrupted by methamphetamine.
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Affiliation(s)
- Robert N Johnson
- Department of Psychology, Utah State University, 2800 Old Main Hill, Logan, Logan, UT 84322-2810, United States.
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44
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ABA chronic dosing of D-amphetamine produces differential drug effects in two variants of a temporal discrimination procedure in pigeons. Behav Pharmacol 2009; 20:705-19. [PMID: 19901824 DOI: 10.1097/fbp.0b013e328333b251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The impact of two procedural variants of the matching to sample of duration procedure on the effects of chronically administered D-amphetamine on temporal discrimination was assessed. The task consisted of subjects classifying durations as short or long to produce a psychophysical curve for time. Procedural variations included response alternatives being defined by either the location of the response keys (Location), or by their color (Color). During Phase 1, two groups of pigeons experienced one of these procedures while being administered with D-amphetamine in an ABA chronic dosing regimen. Phase 2 was a reversal condition in which select birds from Phase 1 were trained on the other procedural variation that they had not experienced and were again given D-amphetamine in an ABA chronic regimen. Results showed that during Phase 1, subjects in the Color group showed a flattening of the psychophysical curves during amphetamine administration, whereas those in the Location group showed a shift of the psychophysical curve to the left and right. Phase 2 revealed that subjects who had experienced the Location variant first were less disrupted by the drug, even when experiencing the Color condition. The procedural variation, dosing regimen, and form of data analysis all provide more information regarding the cause of discrepancies in the timing literature regarding differential effects of D-amphetamine on timing behavior.
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Balsam P, Sanchez-Castillo H, Taylor K, Van Volkinburg H, Ward RD. Timing and anticipation: conceptual and methodological approaches. Eur J Neurosci 2009; 30:1749-55. [PMID: 19863656 PMCID: PMC2791343 DOI: 10.1111/j.1460-9568.2009.06967.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Anticipation occurs on timescales ranging from milliseconds to hours to days. This paper relates the theoretical and methodological developments in the study of interval timing in the seconds, minutes and hours range to research on the anticipatory activity induced by regularly timed daily meals. Daily food-anticipatory activity (FAA) is entrained by procedures which are formally identical to procedures studied in Pavlovian and operant conditioning except for the long duration of the interval between feeding opportunities. As in FAA, the conditioning procedures induce orderly anticipatory activity in advance of food presentation. During the interval between foods the behaviors that express anticipation change as the interval progresses. Consequently, no single response represents a pure measure of anticipation. The ability to distinguish between properties of general anticipatory timing mechanisms such as the scalar property (Gibbon, 1977) and dynamic properties of specific response output systems has been facilitated by teaching animals to use arbitrary anticipatory responses like bar-pressing to obtain food. Interval timing research highlights the importance of identifying the mechanisms of perception, memory, decision making and motivation that all contribute to food anticipation. We suggest that future work focused on the similarities and differences in the neural bases of FAA and interval timing may be useful in unravelling the mechanisms mediating timing behavior.
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Affiliation(s)
- Peter Balsam
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, Unit #50 New York, NY 10032, USA.
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46
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McClure EA, Saulsgiver KA, Wynne CD. Manipulating pre-feed, density of reinforcement, and extinction produces disruption in the Location variation of a temporal discrimination task in pigeons. Behav Processes 2009; 82:85-9. [PMID: 19615617 DOI: 10.1016/j.beproc.2009.03.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 03/16/2009] [Accepted: 03/20/2009] [Indexed: 10/21/2022]
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Balci F, Ludvig EA, Gibson JM, Allen BD, Frank KM, Kapustinski BJ, Fedolak TE, Brunner D. Pharmacological manipulations of interval timing using the peak procedure in male C3H mice. Psychopharmacology (Berl) 2008; 201:67-80. [PMID: 18648777 DOI: 10.1007/s00213-008-1248-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2007] [Accepted: 06/21/2008] [Indexed: 11/24/2022]
Abstract
RATIONALE Timing deficits are characteristic of developmental and neurodegenerative disorders that are accompanied by cognitive impairment. A prominent theory of this interval timing posits an internal clock whose pace is modulated by the neurotransmitter dopamine. OBJECTIVES We tested two hypotheses about the pharmacology of interval timing in mice: (1) that general cognitive enhancers should increase, and cognitive disruptors should decrease temporal precision and (2) that acutely elevated dopamine should speed this internal clock and produce overestimation of elapsing time. MATERIALS AND METHODS C3H mice were tested in the peak procedure, a timing task, following acute administration of two putative cognitive enhancers (atomoxetine and physostigmine), two cognitive disruptors (scopolamine and chlordiazepoxide [CDP]), or two dopamine agonists (D: -amphetamine and methamphetamine). RESULTS The first hypothesis received strong support: temporal precision worsened with both cognitive disruptors, but improved with both cognitive enhancers. The two dopamine agonists also produced underestimation of elapsing time-congruent with the slowing of an internal clock and inconsistent with a dopamine-driven clock. CONCLUSION Our results suggest that interval timing has potential as an assay for generalized cognitive performance and that the dopamine-clock hypothesis needs further refinement.
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Affiliation(s)
- Fuat Balci
- PsychoGenics, Inc., 765 Old Saw Mill River Road, Tarrytown, NY 10591, USA.
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48
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Balci F, Gallistel CR, Allen BD, Frank KM, Gibson JM, Brunner D. Acquisition of peak responding: what is learned? Behav Processes 2008; 80:67-75. [PMID: 18950695 DOI: 10.1016/j.beproc.2008.09.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 09/03/2008] [Accepted: 09/21/2008] [Indexed: 11/24/2022]
Abstract
We investigated how the common measures of timing performance behaved in the course of training on the peak procedure in C3H mice. Following fixed interval (FI) pre-training, mice received 16 days of training in the peak procedure. The peak time and spread were derived from the average response rates while the start and stop times and their relative variability were derived from a single-trial analysis. Temporal precision (response spread) appeared to improve in the course of training. This apparent improvement in precision was, however, an averaging artifact; it was mediated by the staggered appearance of timed stops, rather than by the delayed occurrence of start times. Trial-by-trial analysis of the stop times for individual subjects revealed that stops appeared abruptly after three to five sessions and their timing did not change as training was prolonged. Start times and the precision of start and stop times were generally stable throughout training. Our results show that subjects do not gradually learn to time their start or stop of responding. Instead, they learn the duration of the FI, with robust temporal control over the start of the response; the control over the stop of response appears abruptly later.
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Cheng RK, Scott AC, Penney TB, Williams CL, Meck WH. Prenatal-choline supplementation differentially modulates timing of auditory and visual stimuli in aged rats. Brain Res 2008; 1237:167-75. [PMID: 18801344 DOI: 10.1016/j.brainres.2008.08.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2008] [Revised: 08/22/2008] [Accepted: 08/22/2008] [Indexed: 12/29/2022]
Affiliation(s)
- Ruey-Kuang Cheng
- Department of Psychology and Neuroscience, Duke University, 572 Research Drive, Durham, NC 27708, USA
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50
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Buhusi CV, Lamoureux JA, Meck WH. Prenatal choline supplementation increases sensitivity to contextual processing of temporal information. Brain Res 2008; 1237:204-13. [PMID: 18778696 DOI: 10.1016/j.brainres.2008.08.072] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2008] [Revised: 08/22/2008] [Accepted: 08/22/2008] [Indexed: 12/29/2022]
Abstract
The effects of prenatal choline availability on contextual processing in a 30-s peak-interval (PI) procedure with gaps (1, 5, 10, and 15 s) were assessed in adult male rats. Neither supplementation nor deprivation of prenatal choline affected baseline timing performance in the PI procedure. However, prenatal choline availability significantly altered the contextual processing of gaps inserted into the to-be-timed signal (light on). Choline-supplemented rats displayed a high degree of context sensitivity as indicated by clock resetting when presented with a gap in the signal (light off). In contrast, choline-deficient rats showed no such effect and stopped their clocks during the gap. Control rats exhibited an intermediate level of contextual processing in between stop and full reset. When switched to a reversed gap condition in which rats timed the absence of the light and the presence of the light served as a gap, all groups reset their clocks following a gap. Furthermore, when filling the intertrial interval (ITI) with a distinctive stimulus (e.g., sound), both choline-supplemented and control rats rightward shifted their PI functions less on trials with gaps than choline-deficient rats, indicating greater contextual sensitivity and reduced clock resetting under these conditions. Overall, these data support the view that prenatal choline availability affects the sensitivity to the context in which gaps are inserted in the to-be-timed signal, thereby influencing whether rats run, stop, or reset their clocks.
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Affiliation(s)
- Catalin V Buhusi
- Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29464, USA.
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