1
|
Borghesi F, Mancuso V, Bruni F, Cremascoli R, Bianchi L, Mendolicchio L, Cattaldo S, Chirico A, Mauro A, Pedroli E, Cipresso P. Mental flexibility assessment: A research protocol for patients with Parkinson's Disease and Anorexia Nervosa. PLoS One 2023; 18:e0293921. [PMID: 38117804 PMCID: PMC10732438 DOI: 10.1371/journal.pone.0293921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 10/22/2023] [Indexed: 12/22/2023] Open
Abstract
Mental Flexibility oscillates between adaptive variability in behavior and the capacity to restore homeostasis, linked to mental health. It has recently been one of the most investigated abilities in mental and neurological diseases such as Anorexia nervosa and Parkinson's disease, studied for rigidity or cognitive inflexibility. Patients with anorexia nervosa have rigid cognitive processes about food and weight, which leads to restrictive eating and excessive exercise. People who struggle to adapt their cognitive processes and actions to change their diet and exercise habits may have a harder time recovering from the disorder. On the other hand, research suggests that Parkinson's disease patients may have cognitive flexibility impairments that impair their ability to perform daily tasks and adapt to new environments. Although of clinical interest, mental flexibility lacks theoretical liberalization and unified assessment. This study introduces "IntellEGO" a protocol for a new, multidimensional psychometric assessment of flexibility. This assessment evaluates a person's authentic ability to handle daily challenges using cognitive, emotional, and behavioral factors. Since traditional assessments often focus on one domain, we aim to examine flexibility from multiple angles, acknowledging the importance of viewing people as whole beings with mental and physical aspects. The study protocol includes two assessment phases separated by a rehabilitation period. T0, the acute phase upon admission, and T1, the post-rehabilitation phase lasting 15 days for Parkinson's patients and 4 weeks for eating disorder patients, will be assessed. Neuropsychological performance, self-report questionnaires, psychophysiological measures, and neuroendocrine measures will be collected from Anorexia Nervosa and Parkinson's Disease patients during each study phase. The objective of this procedure is to provide clinicians with a comprehensive framework for conducting meticulous assessments of mental flexibility. This framework considers emotional, cognitive, and behavioral factors, and is applicable to various patient populations.
Collapse
Affiliation(s)
| | | | | | - Riccardo Cremascoli
- Istituto Auxologico Italiano, IRCCS, Unit of Neurology and Neurorehabilitation, San Giuseppe Hospital Piancavallo, Verbania, Italy
| | - Laura Bianchi
- Istituto Auxologico Italiano, IRCCS, Unit of Neurology and Neurorehabilitation, San Giuseppe Hospital Piancavallo, Verbania, Italy
| | - Leonardo Mendolicchio
- Istituto Auxologico Italiano, IRCCS, Unity of Eating Disorders, San Giuseppe Hospital Piancavallo, Verbania, Italy
| | - Stefania Cattaldo
- Istituto Auxologico Italiano, IRCCS, Laboratory of Clinical Neurobiology, San Giuseppe Hospital Piancavallo, Verbania, Italy
| | - Alice Chirico
- Department of Psychology, Research Center in Communication Psychology, Universitá Cattolica del Sacro Cuore, Milan, Italy
| | - Alessandro Mauro
- Istituto Auxologico Italiano, IRCCS, Unit of Neurology and Neurorehabilitation, San Giuseppe Hospital Piancavallo, Verbania, Italy
- Department of Neuroscience Rita Levi Montalcini, University of Turin, Turin, Italy
| | - Elisa Pedroli
- Faculty of Psychology, eCampus University, Novedrate, Italy
- Department of Geriatrics and Cardiovascular Medicine, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Pietro Cipresso
- Department of Psychology, University of Turin, Turin, Italy
- Istituto Auxologico Italiano, IRCCS, Unit of Neurology and Neurorehabilitation, San Giuseppe Hospital Piancavallo, Verbania, Italy
| |
Collapse
|
2
|
Kathofer M, Leder H, Crone JS. Bridging neurodegenerative diseases and artistic expressivity: The significance of testable models and causal inference: Comment on "Can we really 'read' art to see the changing brain? A review and empirical assessment of clinical case reports and published artworks for systematic evidence of quality and style changes linked to damage or neurodegenerative disease" by Pelowski et al. (2022). Phys Life Rev 2023; 45:66-70. [PMID: 37167925 DOI: 10.1016/j.plrev.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/13/2023]
Affiliation(s)
| | - Helmut Leder
- Vienna Cognitive Science Hub, University of Vienna, Austria; Faculty of Psychology, University of Vienna, Austria
| | - Julia Sophia Crone
- Vienna Cognitive Science Hub, University of Vienna, Austria; University of California Los Angeles, Department of Psychology, USA
| |
Collapse
|
3
|
Sheynikhovich D, Otani S, Bai J, Arleo A. Long-term memory, synaptic plasticity and dopamine in rodent medial prefrontal cortex: Role in executive functions. Front Behav Neurosci 2023; 16:1068271. [PMID: 36710953 PMCID: PMC9875091 DOI: 10.3389/fnbeh.2022.1068271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/26/2022] [Indexed: 01/12/2023] Open
Abstract
Mnemonic functions, supporting rodent behavior in complex tasks, include both long-term and (short-term) working memory components. While working memory is thought to rely on persistent activity states in an active neural network, long-term memory and synaptic plasticity contribute to the formation of the underlying synaptic structure, determining the range of possible states. Whereas, the implication of working memory in executive functions, mediated by the prefrontal cortex (PFC) in primates and rodents, has been extensively studied, the contribution of long-term memory component to these tasks received little attention. This review summarizes available experimental data and theoretical work concerning cellular mechanisms of synaptic plasticity in the medial region of rodent PFC and the link between plasticity, memory and behavior in PFC-dependent tasks. A special attention is devoted to unique properties of dopaminergic modulation of prefrontal synaptic plasticity and its contribution to executive functions.
Collapse
Affiliation(s)
- Denis Sheynikhovich
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France,*Correspondence: Denis Sheynikhovich ✉
| | - Satoru Otani
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - Jing Bai
- Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, Paris, France
| | - Angelo Arleo
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| |
Collapse
|
4
|
Marino RA, Gaprielian P, Levy R. Systemic D1-R and D2-R antagonists in Non-Human Primates Differentially Impact Learning and Memory While Impairing Motivation and Motor Performance. Eur J Neurosci 2022; 56:4121-4140. [PMID: 35746869 DOI: 10.1111/ejn.15743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022]
Abstract
Dopamine (DA) modulates cognition in part via differential activation of D1 and D2 receptors within the striatum and prefrontal cortex, yet evidence for cognitive impairments stemming from DA blockade or deficiency is inconsistent. Given the predominance of D1 over D2 receptors (R) in the prefrontal cortex of primates, D1-R blockade should more strongly influence frontal executive function (including working memory), while D2-R blockade should impair processes more strongly associated with the dorsal striatum (including cognitive flexibility, and learning). To test how systemic DA blockade disrupts cognition, we administered D1-R and D2-R like antagonists to healthy monkeys while they performed a series of cognitive tasks. Two selective DA receptor antagonist drugs (SCH-23390 hydrochloride: D1/D5-R antagonist; or Eticlopride hydrochloride: D2/D3-R antagonist) or placebo (0.9% saline) were systemically administered. Four tasks were used: (1) 'visually guided reaching', to test response time and accuracy, (2) 'reversal learning', to test association learning and attention, (3) 'self-ordered sequential search' to test spatial working memory, and (4) 'delayed match to sample' to test object working memory. Increased reach response times and decreased motivation to work for liquid reward was observed with both the D1/D5-R and D2/D3-R antagonists at the maximum dosages that still enabled task performance. The D2/D3-R antagonist impaired performance in the reversal learning task, while object and spatial working memory performance was not consistently affected in the tested tasks for either drug. These results are consistent with the theory that systemic D2/D3-R antagonists preferentially influence striatum processes (cognitive flexibility) while systemic D1/D5-R administration is less detrimental to frontal executive function.
Collapse
Affiliation(s)
- Robert A Marino
- Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.,Department of Surgery, Kingston General Hospital, Kingston, Ontario, Canada
| | - Pauline Gaprielian
- Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada
| | - Ron Levy
- Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.,Department of Surgery, Kingston General Hospital, Kingston, Ontario, Canada
| |
Collapse
|
5
|
Intrinsically disordered proteins and proteins with intrinsically disordered regions in neurodegenerative diseases. Biophys Rev 2022; 14:679-707. [DOI: 10.1007/s12551-022-00968-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/28/2022] [Indexed: 12/14/2022] Open
|
6
|
Cools R, Arnsten AFT. Neuromodulation of prefrontal cortex cognitive function in primates: the powerful roles of monoamines and acetylcholine. Neuropsychopharmacology 2022; 47:309-328. [PMID: 34312496 PMCID: PMC8617291 DOI: 10.1038/s41386-021-01100-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023]
Abstract
The primate prefrontal cortex (PFC) subserves our highest order cognitive operations, and yet is tremendously dependent on a precise neurochemical environment for proper functioning. Depletion of noradrenaline and dopamine, or of acetylcholine from the dorsolateral PFC (dlPFC), is as devastating as removing the cortex itself, and serotonergic influences are also critical to proper functioning of the orbital and medial PFC. Most neuromodulators have a narrow inverted U dose response, which coordinates arousal state with cognitive state, and contributes to cognitive deficits with fatigue or uncontrollable stress. Studies in monkeys have revealed the molecular signaling mechanisms that govern the generation and modulation of mental representations by the dlPFC, allowing dynamic regulation of network strength, a process that requires tight regulation to prevent toxic actions, e.g., as occurs with advanced age. Brain imaging studies in humans have observed drug and genotype influences on a range of cognitive tasks and on PFC circuit functional connectivity, e.g., showing that catecholamines stabilize representations in a baseline-dependent manner. Research in monkeys has already led to new treatments for cognitive disorders in humans, encouraging future research in this important field.
Collapse
Affiliation(s)
- Roshan Cools
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Amy F T Arnsten
- Department of Neuroscience, Yale University School of Medicine, New Haven, CT, USA.
| |
Collapse
|
7
|
Mikus N, Korb S, Massaccesi C, Gausterer C, Graf I, Willeit M, Eisenegger C, Lamm C, Silani G, Mathys C. Effects of dopamine D2/3 and opioid receptor antagonism on the trade-off between model-based and model-free behaviour in healthy volunteers. eLife 2022; 11:79661. [PMID: 36468832 PMCID: PMC9721617 DOI: 10.7554/elife.79661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 11/22/2022] [Indexed: 12/11/2022] Open
Abstract
Human behaviour requires flexible arbitration between actions we do out of habit and actions that are directed towards a specific goal. Drugs that target opioid and dopamine receptors are notorious for inducing maladaptive habitual drug consumption; yet, how the opioidergic and dopaminergic neurotransmitter systems contribute to the arbitration between habitual and goal-directed behaviour is poorly understood. By combining pharmacological challenges with a well-established decision-making task and a novel computational model, we show that the administration of the dopamine D2/3 receptor antagonist amisulpride led to an increase in goal-directed or 'model-based' relative to habitual or 'model-free' behaviour, whereas the non-selective opioid receptor antagonist naltrexone had no appreciable effect. The effect of amisulpride on model-based/model-free behaviour did not scale with drug serum levels in the blood. Furthermore, participants with higher amisulpride serum levels showed higher explorative behaviour. These findings highlight the distinct functional contributions of dopamine and opioid receptors to goal-directed and habitual behaviour and support the notion that even small doses of amisulpride promote flexible application of cognitive control.
Collapse
Affiliation(s)
- Nace Mikus
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of ViennaViennaAustria,Interacting Minds Centre, Aarhus UniversityAarhusDenmark
| | - Sebastian Korb
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of ViennaViennaAustria,Department of Psychology, University of EssexColchesterUnited Kingdom
| | - Claudia Massaccesi
- Department of Clinical and Health Psychology, Faculty of Psychology, University of ViennaViennaAustria
| | - Christian Gausterer
- FDZ‐Forensisches DNA Zentrallabor GmbH, Medical University of ViennaViennaAustria
| | - Irene Graf
- Department of Psychiatry and Psychotherapy, Medical University of ViennaViennaAustria
| | - Matthäus Willeit
- Department of Psychiatry and Psychotherapy, Medical University of ViennaViennaAustria
| | - Christoph Eisenegger
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of ViennaViennaAustria
| | - Claus Lamm
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of ViennaViennaAustria
| | - Giorgia Silani
- Department of Clinical and Health Psychology, Faculty of Psychology, University of ViennaViennaAustria
| | - Christoph Mathys
- Interacting Minds Centre, Aarhus UniversityAarhusDenmark,Translational Neuromodeling Unit (TNU), Institute for Biomedical Engineering, University of Zurich and ETH ZurichZurichSwitzerland,Scuola Internazionale Superiore di Studi Avanzati (SISSA)TriesteItaly
| |
Collapse
|
8
|
Zmigrod L, Robbins TW. Dopamine, Cognitive Flexibility, and IQ: Epistatic Catechol-O-MethylTransferase:DRD2 Gene-Gene Interactions Modulate Mental Rigidity. J Cogn Neurosci 2021; 34:153-179. [PMID: 34818409 DOI: 10.1162/jocn_a_01784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Cognitive flexibility has been hypothesized to be neurochemically rooted in dopamine neurotransmission. Nonetheless, underpowered sample sizes and contradictory meta-analytic findings have obscured the role of dopamine genes in cognitive flexibility and neglected potential gene-gene interactions. In this largest neurocognitive-genetic study to date (n = 1400), single nucleotide polymorphisms associated with elevated prefrontal dopamine levels (catechol-O-methyltransferase; rs4680) and diminished striatal dopamine (C957T; rs6277) were both implicated in Wisconsin Card Sorting Test performance. Crucially, however, these genetic effects were only evident in low-IQ participants, suggesting high intelligence compensates for, and eliminates, the effect of dispositional dopamine functioning on flexibility. This interaction between cognitive systems may explain and resolve previous empirical inconsistencies in highly educated participant samples. Moreover, compensatory gene-gene interactions were discovered between catechol-O-methyltransferase and DRD2, such that genotypes conferring either elevated prefrontal dopamine or diminished striatal dopamine-via heightened striatally concentrated D2 dopamine receptor availability-are sufficient for cognitive flexibility, but neither is necessary. The study has therefore revealed a form of epistatic redundancy or substitutability among dopamine systems in shaping adaptable thought and action, thus defining boundary conditions for dopaminergic effects on flexible behavior. These results inform theories of clinical disorders and psychopharmacological interventions and uncover complex fronto-striatal synergies in human flexible cognition.
Collapse
|
9
|
Netter P. Between Temperament and Psychopathology: Examples from Neuropharmacological Challenge Tests in Healthy Humans. Neuropsychobiology 2021; 80:84-100. [PMID: 33647900 DOI: 10.1159/000514074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/21/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND This paper tries to demonstrate that the questionnaire-based continuum between temperament traits and psychopathology can also be shown on the biochemical level. A common feature is the incapacity to adapt to external demands, as demonstrated by examples of disturbed hormone cycles as well as neurotransmitter (TM) responses related to affective and impulse control disorders. METHODS Pharmacological challenge tests performed in placebo-controlled balanced crossover experiments with consecutive challenges by serotonin (5-HT), noradrenaline (NA), and dopamine (DA) agonistic drugs were applied to healthy subjects, and individual responsivities of each TM system assessed by respective cortisol and prolactin responses were related to questionnaire-based facets of depressiveness and impulsivity, respectively. RESULTS The depression-related traits "Fatigue" and "Physical Anhedonia" were characterized by low and late responses to DA stimulation as opposed to "Social Anhedonia," which rather mirrored the pattern of schizophrenia. Reward-related and premature responding-related impulsivity represented by high scores on "Disinhibition" and "Motor Impulsivity," respectively, as well as the questionnaire-based components of attention deficit hyperactivity disorder, "Cognitive" and "Motor Impulsivity," could be discriminated by their patterns of DA/NA responses. 5-HT responses suggested that instead of the expected low availability of 5-HT claimed to be associated with impulse control disorders, low NA responses indicated lack of inhibition in impulsivity and high NA responses in depression-related "Anhedonia" indicated suppression of approach motivation. CONCLUSIONS In spite of the flaws of pharmacological challenge tests, they may be suitable for demonstrating similarities in TM affinities between psychopathological disturbances and respective temperament traits and for separating sub-entities of larger disease spectra.
Collapse
Affiliation(s)
- Petra Netter
- Department of Psychology, University of Gießen, Gießen, Germany,
| |
Collapse
|
10
|
Pignalosa FC, Desiderio A, Mirra P, Nigro C, Perruolo G, Ulianich L, Formisano P, Beguinot F, Miele C, Napoli R, Fiory F. Diabetes and Cognitive Impairment: A Role for Glucotoxicity and Dopaminergic Dysfunction. Int J Mol Sci 2021; 22:ijms222212366. [PMID: 34830246 PMCID: PMC8619146 DOI: 10.3390/ijms222212366] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder characterized by hyperglycemia, responsible for the onset of several long-term complications. Recent evidence suggests that cognitive dysfunction represents an emerging complication of DM, but the underlying molecular mechanisms are still obscure. Dopamine (DA), a neurotransmitter essentially known for its relevance in the regulation of behavior and movement, modulates cognitive function, too. Interestingly, alterations of the dopaminergic system have been observed in DM. This review aims to offer a comprehensive overview of the most relevant experimental results assessing DA’s role in cognitive function, highlighting the presence of dopaminergic dysfunction in DM and supporting a role for glucotoxicity in DM-associated dopaminergic dysfunction and cognitive impairment. Several studies confirm a role for DA in cognition both in animal models and in humans. Similarly, significant alterations of the dopaminergic system have been observed in animal models of experimental diabetes and in diabetic patients, too. Evidence is accumulating that advanced glycation end products (AGEs) and their precursor methylglyoxal (MGO) are associated with cognitive impairment and alterations of the dopaminergic system. Further research is needed to clarify the molecular mechanisms linking DM-associated dopaminergic dysfunction and cognitive impairment and to assess the deleterious impact of glucotoxicity.
Collapse
Affiliation(s)
- Francesca Chiara Pignalosa
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Antonella Desiderio
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Paola Mirra
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Cecilia Nigro
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Giuseppe Perruolo
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Luca Ulianich
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Pietro Formisano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Francesco Beguinot
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| | - Claudia Miele
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-081-746-3248
| | - Raffaele Napoli
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
| | - Francesca Fiory
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (F.C.P.); (A.D.); (P.M.); (C.N.); (G.P.); (L.U.); (P.F.); (F.B.); (R.N.); (F.F.)
- URT “Genomic of Diabetes”, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy
| |
Collapse
|
11
|
Zarrindast MR, Fazli-Tabaei S, Khakpai F. Synergistic effect between quinpirole and L-NAME as well as sulpiride and L-arginine on the modulation of anxiety and memory processes in the 6-OHDA mouse model of Parkinson's disease: An isobologram analysis. Neurobiol Learn Mem 2021; 186:107538. [PMID: 34737042 DOI: 10.1016/j.nlm.2021.107538] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/03/2021] [Accepted: 10/05/2021] [Indexed: 10/20/2022]
Abstract
We evaluated interactions between dopamine D2 receptor and nitric oxide (NO) actions on the regulation of anxiety and memory in the 6-hydroxydopamine (6-OHDA) mouse model of Parkinson's disease (PD). A unilateral guide cannula was stereotaxically implanted over the right striatum. Elevated plus-maze test (EPM) test-retest protocol was employed to evaluate anxiety and memory in mice. The results revealed that injection of L-NAME (9 mg/kg) induced anxiolytic and amnesic effects, while L-arginine (9 mg/kg) produced anxiogenic and memory-improvement effects in the 6-OHDA mouse model of PD. Administration of sulpiride (20 mg/kg) induced anxiogenic and memory-improvement effects, whereas quinpirole (20 mg/kg) caused anxiolytic and amnesic effects in PD mice. Co-injection of sulpiride (5, 10, and 20 mg/kg) plus L-NAME (3 mg/kg) induced anxiolytic and amnesic effects. Co-injection of sulpiride (20 mg/kg) plus L-arginine (3 mg/kg) induced anxiogenic and memory-improvement effects. Co-administrations of quinpirole (20 mg/kg) and L-NAME (3 mg/kg) induced anxiolytic effect, but co-administration of quinpirole (20 mg/kg) plus L-arginine (3 mg/kg) caused anxiogenic and memory-improvement effects. The isobologram analysis revealed that there is a synergistic effect between sulpiride and L-arginine as well as quinpirole and L-NAME upon induction of anxiogenic and anxiolytic effects, respectively in PD mice. Our results suggested: (1) NO and dopamine D2 receptor mechanisms affect anxiety and memory in PD mice; (2) L-NAME reversed anxiogenic and memory-improvement effect induced by sulpiride; (3) Anxiolytic and amnesic effects induced by quinpirole reversed by L-arginine; (4) There is a synergistic effect between dopamine D2 receptor and NO systems on the modulation of anxiety and memory.
Collapse
Affiliation(s)
- Mohammad-Reza Zarrindast
- Department of Pharmacology School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran; Department of Neuroendocrinology, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Soheila Fazli-Tabaei
- Department of Physiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Fatemeh Khakpai
- Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| |
Collapse
|
12
|
Tabi YA, Maio MR, Fallon SJ, Udale R, Dickson S, Idris MI, Nobis L, Manohar SG, Husain M. Impact of processing demands at encoding, maintenance and retrieval in visual working memory. Cognition 2021; 214:104758. [PMID: 33984741 PMCID: PMC8346950 DOI: 10.1016/j.cognition.2021.104758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 11/29/2022]
Abstract
There has been surprisingly little examination of how recall performance is affected by processing demands induced by retrieval cues, how manipulations at encoding interact with processing demands during maintenance or due to the retrieval cue, and how these are affected with aging. Here, we investigate these relationships by examining the fidelity of working memory recall across two delayed reproduction tasks with a continuous measure of report across the adult lifespan. Participants were asked to remember and subsequently reproduce from memory the identity and location of a probed item from the encoding display. In Experiment 1, we examined the effect of filtering irrelevant information at encoding and the impact of filtering distracting information at retrieval simultaneously. In Experiment 2, we tested how ignoring distracting information during maintenance or updating current contents with new information during this period affects recall. The results reveal that manipulating processing requirements induced by retrieval cues (by altering the nature of the retrieval foil) had a significant impact on memory recall: the presence of two previously viewed features from the encoding display in the retrieval foil led to a decrease in identification accuracy. Although irrelevant information can be filtered out well at encoding, both ignoring irrelevant information and updating the contents of memory during the maintenance delay had a detrimental effect on recall. These effects were similar across the lifespan, but older individuals were particularly affected by manipulations of processing demands at encoding as well as increasing set size of information to be retained in memory. Finally, analyses revealed that there were no systematic relationships between filtering performance at encoding, maintenance and retrieval suggesting that these processing demands are independent of each other. Rather than filtering being a single, monolithic entity, the data suggest that it is better accounted for as distinctly dissociable cognitive processes that engage and articulate with different phases of working memory.
Collapse
Affiliation(s)
- Younes Adam Tabi
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK; Department of Experimental Psychology, University of Oxford, Oxford, UK.
| | - Maria Raquel Maio
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK; Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Sean James Fallon
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Robert Udale
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Shannon Dickson
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Mohamad Imran Idris
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| | - Lisa Nobis
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Sanjay G Manohar
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK; Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Masud Husain
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK; Department of Experimental Psychology, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK; Wellcome Centre for Integrative Neuroimaging, Oxford, UK
| |
Collapse
|
13
|
Ahrens S, Thiel CM. Effects of Nicotine on Task Switching and Distraction in Non-smokers. An fMRI Study. Neuroscience 2020; 444:43-53. [DOI: 10.1016/j.neuroscience.2020.07.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/11/2022]
|
14
|
Tiedt HO, Ehlen F, Klostermann F. Increased conceptual switching by dopaminergic treatment in patients with Parkinson's disease. Brain Cogn 2020; 144:105611. [PMID: 32858496 DOI: 10.1016/j.bandc.2020.105611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 08/09/2020] [Indexed: 11/22/2022]
Abstract
Cognitive changes including reduced word production in verbal fluency (VF) tasks are frequently observed in Parkinson's disease (PD) with ambiguous effects of dopaminergic medication on these symptoms. Here, we studied the impact of dopaminergic medication on specific cognitive components underlying VF task performance in 21 participants with PD on their regular medication and following dopamine withdrawal compared with healthy controls. We used temporal cluster analysis (TCA) to differentiate phases of VF output relating to fast automatic lexical activation ('clusters') and slower attention-demanding shifts ('switches'). Dopaminergic medication led to increased switching and, in non-alternating VF tasks, to the formation of smaller and shorter word clusters. The number of switches was correlated with higher cognitive scores and showed an inverse relationship with VF error rates. Increased switching operations during VF task performance can be interpreted in view of nigrostriatal dopaminergic roles for balancing system state versus change propensities. The additional effect on word clustering suggests a modulation of semantic spreading activation mechanisms underlying lexical search, presumably involving non-nigrostriatal, e.g., mesocortical dopaminergic networks.
Collapse
Affiliation(s)
- Hannes O Tiedt
- Charité - Universitätsmedizin Berlin, Department of Neurology, Motor and Cognition Group, Campus Benjamin Franklin (CBF), Hindenburgdamm 30, 12203 Berlin, Germany.
| | - Felicitas Ehlen
- Charité - Universitätsmedizin Berlin, Department of Neurology, Motor and Cognition Group, Campus Benjamin Franklin (CBF), Hindenburgdamm 30, 12203 Berlin, Germany; Jüdisches Krankenhaus Berlin, Department of Psychiatry, Heinz-Galinski-Str. 1, 13347 Berlin, Germany(1).
| | - Fabian Klostermann
- Charité - Universitätsmedizin Berlin, Department of Neurology, Motor and Cognition Group, Campus Benjamin Franklin (CBF), Hindenburgdamm 30, 12203 Berlin, Germany; Humboldt-Universität zu Berlin, Berlin School of Mind and Brain, Unter den Linden 6, 10099 Berlin, Germany.
| |
Collapse
|
15
|
Affiliation(s)
- Quenten Highgate
- School of Psychology, Victoria University of Wellington, Wellington, New Zealand
| | - Susan Schenk
- School of Psychology, Victoria University of Wellington, Wellington, New Zealand
| |
Collapse
|
16
|
Boddington R, Gómez Dunlop CA, Garnham LC, Ryding S, Abbey-Lee RN, Kreshchenko A, Løvlie H. The relationship between monoaminergic gene expression, learning, and optimism in red junglefowl chicks. Anim Cogn 2020; 23:901-911. [PMID: 32440792 PMCID: PMC7415762 DOI: 10.1007/s10071-020-01394-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/14/2022]
Abstract
Intra-species cognitive variation is commonly observed, but explanations for why individuals within a species differ in cognition are still understudied and not yet clear. Cognitive processes are likely influenced by genetic differences, with genes in the monoaminergic systems predicted to be important. To explore the potential role of these genes in association with individual variation in cognition, we exposed red junglefowl (Gallus gallus) chicks to behavioural assays measuring variation in learning (discriminative learning, reversal learning, and cognitive flexibility) and optimism (measured in a cognitive judgement bias test). Following this, we analysed prefrontal cortex gene expression of several dopaminergic and serotonergic genes in these chicks. Of our explored genes, serotonin receptor genes 5HT2A and 5HT2B, and dopaminergic receptor gene DRD1 were associated with measured behaviour. Chicks that had higher 5HT2A were less flexible in the reversal learning task, and chicks with higher 5HT2B also tended to be less cognitively flexible. Additionally, chicks with higher DRD1 were more optimistic, whilst chicks with higher 5HT2A tended to be less optimistic. These results suggest that the serotonergic and dopaminergic systems are linked to observed cognitive variation, and, thus, individual differences in cognition can be partially explained by variation in brain gene expression.
Collapse
Affiliation(s)
- Robert Boddington
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden.,School of Biological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Clara A Gómez Dunlop
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden.,School of Biological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Laura C Garnham
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden
| | - Sara Ryding
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden.,School of Biological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Robin N Abbey-Lee
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden
| | - Anastasia Kreshchenko
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden.,School of Biological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Hanne Løvlie
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, 581 83, Linköping, Sweden.
| |
Collapse
|
17
|
Königschulte W, Civai C, Hildebrand P, Gaber TJ, Fink GR, Zepf FD. Effects of serotonin depletion and dopamine depletion on bimodal divided attention. World J Biol Psychiatry 2020; 21:183-194. [PMID: 30295116 DOI: 10.1080/15622975.2018.1532110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Objectives: This study aimed to explore the effects of acute phenylalanine tyrosine depletion (APTD) and acute tryptophan depletion (ATD) on bimodal divided attention. A balanced amino acid mixture (BAL) served as control condition.Methods: Fifty-three healthy adults (final analyzed sample was N = 49, age: M = 23.8 years) were randomly assigned to APTD, ATD or BAL in a double-blind, between-subject approach. Divided attention was assessed after 4 h. Blood samples were taken before and 6 h after challenge intake.Results: Amino acid concentrations following challenge intake significantly decreased (all P ≤ 0.01). There was a significant difference in the mean reaction time (RT) towards auditory stimuli, but not towards visual stimuli between the groups. Post-hoc comparison of mean RTs (auditory stimuli) showed a significant difference between ATD (RT = 604.0 ms, SD = 56.9 ms) and APTD (RT = 556.4 ms, SD = 54.2 ms; P = 0.037), but no RT difference between ATD and BAL or APTD and BAL (RT = 573.6 ms, SD = 45.7 ms).Conclusions: The results indicate a possible dissociation between the effects of a diminished brain 5-HT and DA synthesis on the performance in a bimodal divided attention task. The difference was exclusively observed within the RT towards auditory signals.
Collapse
Affiliation(s)
- W Königschulte
- Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany.,JARA Translational Brain Medicine, Aachen & Jülich, Germany
| | - C Civai
- School of Psychology, University of Kent, Canterbury, UK
| | - P Hildebrand
- Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany.,JARA Translational Brain Medicine, Aachen & Jülich, Germany
| | - T J Gaber
- Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany.,JARA Translational Brain Medicine, Aachen & Jülich, Germany
| | - G R Fink
- Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Research Centre Jülich, Jülich, Germany.,Department of Neurology, University of Cologne, Cologne, Germany
| | - F D Zepf
- Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany.,JARA Translational Brain Medicine, Aachen & Jülich, Germany.,Department of Child and Adolescent Psychiatry, Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Germany.,Centre and Discipline of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, School of Medicine, Division of Psychiatry and Clinical Neurosciences & Division of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, The University of Western Australia, Perth, Australia.,Telethon Kids Institute, Perth, Australia
| |
Collapse
|
18
|
Furman DJ, White RL, Naskolnakorn J, Ye J, Kayser A, D'Esposito M. Effects of Dopaminergic Drugs on Cognitive Control Processes Vary by Genotype. J Cogn Neurosci 2020; 32:804-821. [PMID: 31905090 DOI: 10.1162/jocn_a_01518] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Dopamine (DA) has been implicated in modulating multiple cognitive control processes, including the robust maintenance of task sets and memoranda in the face of distractors (cognitive stability) and, conversely, the ability to switch task sets or update the contents of working memory when it is advantageous to do so (cognitive flexibility). In humans, the limited specificity of available pharmacological probes has posed a challenge for understanding the mechanisms by which DA, acting on multiple receptor families across the PFC and striatum, differentially influences these cognitive processes. Using a within-subject, placebo-controlled design, we contrasted the impact of two mechanistically distinct DA drugs, tolcapone (an inhibitor of catechol-O-methyltransferase [COMT], a catecholamine inactivator) and bromocriptine (a DA agonist with preferential affinity for the D2 receptor), on the maintenance and switching of task rules. Given previous work demonstrating that drug effects on behavior are dependent on baseline DA tone, participants were stratified according to genetic polymorphisms associated with cortical (COMT Val158Met) and striatal (Taq1A) DA system function. Our results were partially consistent with an inverted-U-shaped relationship between tolcapone and robust rule maintenance (interaction with COMT genotype) and between bromocriptine and cued rule switching (interaction with Taq1A genotype). However, when task instructions were ambiguous, a third relationship emerged to explain drug effects on spontaneous task switching (interaction of COMT genotype and bromocriptine). Together, this pattern of results suggests that the effects of DA drugs vary not only as a function of the DA system component upon which they act but also on subtle differences in task demands and context.
Collapse
Affiliation(s)
| | - Robert L White
- University of California, Berkeley.,Washington University School of Medicine
| | | | - Jean Ye
- University of California, Berkeley
| | | | | |
Collapse
|
19
|
Lövdén M, Karalija N, Andersson M, Wåhlin A, Axelsson J, Köhncke Y, Jonasson LS, Rieckman A, Papenberg G, Garrett DD, Guitart-Masip M, Salami A, Riklund K, Bäckman L, Nyberg L, Lindenberger U. Latent-Profile Analysis Reveals Behavioral and Brain Correlates of Dopamine-Cognition Associations. Cereb Cortex 2019; 28:3894-3907. [PMID: 29028935 DOI: 10.1093/cercor/bhx253] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 09/07/2017] [Indexed: 01/14/2023] Open
Abstract
Evidence suggests that associations between the neurotransmitter dopamine and cognition are nonmonotonic and open to modulation by various other factors. The functional implications of a given level of dopamine may therefore differ from person to person. By applying latent-profile analysis to a large (n = 181) sample of adults aged 64-68 years, we probabilistically identified 3 subgroups that explain the multivariate associations between dopamine D2/3R availability (probed with 11C-raclopride-PET, in cortical, striatal, and hippocampal regions) and cognitive performance (episodic memory, working memory, and perceptual speed). Generally, greater receptor availability was associated with better cognitive performance. However, we discovered a subgroup of individuals for which high availability, particularly in striatum, was associated with poor performance, especially for working memory. Relative to the rest of the sample, this subgroup also had lower education, higher body-mass index, and lower resting-state connectivity between caudate nucleus and dorsolateral prefrontal cortex. We conclude that a smaller subset of individuals induces a multivariate non-linear association between dopamine D2/3R availability and cognitive performance in this group of older adults, and discuss potential reasons for these differences that await further empirical scrutiny.
Collapse
Affiliation(s)
- Martin Lövdén
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Nina Karalija
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Micael Andersson
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Anders Wåhlin
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Jan Axelsson
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Ylva Köhncke
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Lars S Jonasson
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Center for Aging and Demographic Research, CEDAR, Umeå University, Umeå, Sweden
| | - Anna Rieckman
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Goran Papenberg
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Douglas D Garrett
- Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany.,Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Marc Guitart-Masip
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Alireza Salami
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Katrine Riklund
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Lars Bäckman
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Lars Nyberg
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Ulman Lindenberger
- Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany.,Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany.,European University Institute, San Domenico di Fiesole (FI), Italy
| |
Collapse
|
20
|
Li X, Bäckman L, Persson J. The relationship of age and DRD2 polymorphisms to frontostriatal brain activity and working memory performance. Neurobiol Aging 2019; 84:189-199. [PMID: 31629117 DOI: 10.1016/j.neurobiolaging.2019.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 08/08/2019] [Accepted: 08/24/2019] [Indexed: 11/26/2022]
Abstract
Dopamine (DA) in both prefrontal cortex (PFC) and caudate nucleus is critical for working memory (WM) function. The C957T and Taq1A polymorphisms of the DRD2 gene are related to DA D2 receptor densities in PFC and striatum. Using functional MRI, we investigated the relationship of age and these 2 DRD2 gene polymorphisms to WM function and examined possible age by gene interactions. Results demonstrated less caudate activity for older adults (70-80 years; n = 112) compared with the younger age group (25-65 years; n = 191), suggesting age-related functional differences in this region. Importantly, there was a gene-related difference regarding WM performance and frontostriatal brain activity. Specifically, better WM performance and greater activity in PFC were found among C957T C allele carriers. Combined genetic markers for increased DA D2 receptor density were associated with greater caudate activity and higher WM updating performance. The genetic effects on blood oxygen level-dependent activity were only observed in older participants, suggesting magnified genetic effects in aging. Our findings emphasize the importance of DA-related genes in regulating WM functioning in aging and demonstrate a positive link between DA and brain activation in the frontostriatal circuitry.
Collapse
Affiliation(s)
- Xin Li
- Aging Research Center, Karolinska Institute and Stockholm University, Stockholm, Sweden.
| | - Lars Bäckman
- Aging Research Center, Karolinska Institute and Stockholm University, Stockholm, Sweden
| | - Jonas Persson
- Aging Research Center, Karolinska Institute and Stockholm University, Stockholm, Sweden
| |
Collapse
|
21
|
Miguel PM, Pereira LO, Barth B, de Mendonça Filho EJ, Pokhvisneva I, Nguyen TTT, Garg E, Razzolini BR, Koh DXP, Gallant H, Sassi RB, Hall GBC, O'Donnell KJ, Meaney MJ, Silveira PP. Prefrontal Cortex Dopamine Transporter Gene Network Moderates the Effect of Perinatal Hypoxic-Ischemic Conditions on Cognitive Flexibility and Brain Gray Matter Density in Children. Biol Psychiatry 2019; 86:621-630. [PMID: 31142432 DOI: 10.1016/j.biopsych.2019.03.983] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/23/2019] [Accepted: 03/25/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Genetic polymorphisms of the dopamine transporter gene (DAT1) and perinatal complications associated with poor oxygenation are risk factors for attentional problems in childhood and may show interactive effects. METHODS We created a novel expression-based polygenic risk score (ePRS) reflecting variations in the function of the DAT1 gene network (ePRS-DAT1) in the prefrontal cortex and explored the effects of its interaction with perinatal hypoxic-ischemic-associated conditions on cognitive flexibility and brain gray matter density in healthy children from two birth cohorts-MAVAN from Canada (n = 139 boys and girls) and GUSTO from Singapore (n = 312 boys and girls). RESULTS A history of exposure to several perinatal hypoxic-ischemic-associated conditions was associated with impaired cognitive flexibility only in the high-ePRS group, suggesting that variation in the prefrontal cortex expression of genes involved in dopamine reuptake is associated with differences in this behavior. Interestingly, this result was observed in both ethnically distinct birth cohorts. Additionally, parallel independent component analysis (MAVAN cohort, n = 40 children) demonstrated relationships between single nucleotide polymorphism-based ePRS and gray matter density in areas involved in executive (cortical regions) and integrative (bilateral thalamus and putamen) functions, and these relationships differ in children from high and low exposure to hypoxic-ischemic-associated conditions. CONCLUSIONS These findings reveal that the impact of conditions associated with hypoxia-ischemia on brain development and executive functions is moderated by genotypes associated with dopamine signaling in the prefrontal cortex. We discuss the potential impact of innovative genomic and environmental measures for the identification of children at high risk for impaired executive functions.
Collapse
Affiliation(s)
- Patrícia Maidana Miguel
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Departamento de Ciências Morfológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Lenir Orlandi Pereira
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Departamento de Ciências Morfológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Barbara Barth
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada; Integrated Program in Neuroscience, Faculty of Medicine, McGill University, Montréal, Quebec, Canada
| | - Euclides José de Mendonça Filho
- Programa de Pós-Graduação em Psicologia, Instituto de Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada
| | - Irina Pokhvisneva
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada
| | - Thao T T Nguyen
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada
| | - Elika Garg
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada
| | - Bruna Regis Razzolini
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada; Integrated Program in Neuroscience, Faculty of Medicine, McGill University, Montréal, Quebec, Canada
| | - Dawn Xin Ping Koh
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore
| | - Heather Gallant
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Roberto Britto Sassi
- Mood Disorders Program, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada
| | - Geoffrey B C Hall
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Kieran John O'Donnell
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada; Department of Psychiatry, Faculty of Medicine, McGill University, Montréal, Quebec, Canada
| | - Michael J Meaney
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada; Integrated Program in Neuroscience, Faculty of Medicine, McGill University, Montréal, Quebec, Canada; Department of Psychiatry, Faculty of Medicine, McGill University, Montréal, Quebec, Canada; Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore
| | - Patrícia Pelufo Silveira
- Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, Montréal, Quebec, Canada; Integrated Program in Neuroscience, Faculty of Medicine, McGill University, Montréal, Quebec, Canada; Department of Psychiatry, Faculty of Medicine, McGill University, Montréal, Quebec, Canada.
| |
Collapse
|
22
|
Salami A, Rieckmann A, Karalija N, Avelar-Pereira B, Andersson M, Wåhlin A, Papenberg G, Garrett DD, Riklund K, Lövdén M, Lindenberger U, Bäckman L, Nyberg L. Neurocognitive Profiles of Older Adults with Working-Memory Dysfunction. Cereb Cortex 2019; 28:2525-2539. [PMID: 29901790 PMCID: PMC5998950 DOI: 10.1093/cercor/bhy062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 02/23/2018] [Indexed: 01/21/2023] Open
Abstract
Individuals differ in how they perceive, remember, and think. There is evidence for the existence of distinct subgroups that differ in cognitive performance within the older population. However, it is less clear how individual differences in cognition in old age are linked to differences in brain-based measures. We used latent-profile analysis on n-back working-memory (WM) performance to identify subgroups in a large sample of older adults (n = 181; age = 64–68 years). Our analysis identified one larger normal subgroup with higher performance (n = 113; 63%), and a second smaller subgroup (n = 55; 31%) with lower performance. The low-performing subgroup showed weaker load-dependent BOLD modulation and lower connectivity within the fronto-parietal network (FPN) as well as between FPN and striatum during n-back, along with lower FPN connectivity at rest. This group also exhibited lower FPN structural integrity, lower frontal dopamine D2 binding potential, inferior performance on offline WM tests, and a trend-level genetic predisposition for lower dopamine-system efficiency. By contrast, this group exhibited relatively intact episodic memory and associated brain measures (i.e., hippocampal volume, structural, and functional connectivity within the default-mode network). Collectively, these data provide converging evidence for the existence of a group of older adults with impaired WM functioning characterized by reduced cortico-striatal coupling and aberrant cortico-cortical integrity within FPN.
Collapse
Affiliation(s)
- Alireza Salami
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Anna Rieckmann
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Nina Karalija
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Bárbara Avelar-Pereira
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden.,Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Micael Andersson
- Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Anders Wåhlin
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
| | - Goran Papenberg
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Douglas D Garrett
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Katrine Riklund
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Martin Lövdén
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Ulman Lindenberger
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Lars Bäckman
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Lars Nyberg
- Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden.,Department of Radiation Sciences, Umeå University, Umeå, Sweden.,Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| |
Collapse
|
23
|
Fallon SJ, Kienast A, Muhammed K, Ang YS, Manohar SG, Husain M. Dopamine D2 receptor stimulation modulates the balance between ignoring and updating according to baseline working memory ability. J Psychopharmacol 2019; 33:1254-1263. [PMID: 31526206 DOI: 10.1177/0269881119872190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Working memory (WM) deficits in neuropsychiatric disorders have often been attributed to altered dopaminergic signalling. Specifically, D2 receptor stimulation is thought to affect the ease with which items can be gated into and out of WM. In addition, this effect has been hypothesised to vary according to baseline WM ability, a putative index of dopamine synthesis levels. Moreover, whether D2 stimulation affects WM vicariously through modulating relatively WM-free cognitive control processes has not been explored. AIMS We examined the effect of administering a dopamine agonist on the ability to ignore or update information in WM. METHOD A single dose of cabergoline (1 mg) was administered to healthy older adult humans in a within-subject, double-blind, placebo-controlled study. In addition, we obtained measures of baseline WM ability and relatively WM-free cognitive control (overcoming response conflict). RESULTS Consistent with predictions, baseline WM ability significantly modulated the effect that drug administration had on the proficiency of ignoring and updating. High-WM individuals were relatively better at ignoring compared to updating after drug administration. Whereas the opposite occurred in low-WM individuals. Although the ability to overcome response conflict was not affected by cabergoline, a negative relationship between the effect the drug had on response conflict performance and ignoring was observed. Thus, both response conflict and ignoring are coupled to dopaminergic stimulation levels. CONCLUSIONS Cumulatively, these results provide evidence that dopamine affects subcomponents of cognitive control in a diverse, antagonistic fashion and that the direction of these effects is dependent upon baseline WM.
Collapse
Affiliation(s)
- Sean James Fallon
- Department of Experimental Psychology, University of Oxford, Oxford, UK.,Wellcome Trust Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK
| | - Annika Kienast
- Department of Experimental Psychology, University of Oxford, Oxford, UK.,Wellcome Trust Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK
| | - Kinan Muhammed
- Department of Experimental Psychology, University of Oxford, Oxford, UK.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Yuen-Siang Ang
- Department of Experimental Psychology, University of Oxford, Oxford, UK.,Wellcome Trust Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Sanjay G Manohar
- Department of Experimental Psychology, University of Oxford, Oxford, UK.,Wellcome Trust Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK
| | - Masud Husain
- Department of Experimental Psychology, University of Oxford, Oxford, UK.,Wellcome Trust Centre for Integrative Neuroimaging, University of Oxford, Oxford, UK.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| |
Collapse
|
24
|
Cools R. Chemistry of the Adaptive Mind: Lessons from Dopamine. Neuron 2019; 104:113-131. [DOI: 10.1016/j.neuron.2019.09.035] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/21/2022]
|
25
|
Miguel PM, Deniz BF, Confortim HD, Bronauth LP, de Oliveira BC, Alves MB, Silveira PP, Pereira LO. Methylphenidate administration reverts attentional inflexibility in adolescent rats submitted to a model of neonatal hypoxia-ischemia: Predictive validity for ADHD study. Exp Neurol 2019; 315:88-99. [DOI: 10.1016/j.expneurol.2019.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 01/04/2019] [Accepted: 02/08/2019] [Indexed: 12/29/2022]
|
26
|
The acute effect of Hypericum perforatum on short-term memory in healthy adults. Psychopharmacology (Berl) 2019; 236:613-623. [PMID: 30382352 DOI: 10.1007/s00213-018-5088-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 10/19/2018] [Indexed: 12/19/2022]
Abstract
RATIONALE Over-the-counter drugs containing Hypericum perforatum (H. perforatum) have been argued to improve memory and sustained attention. So far, these claims have not been supported in human studies. However, previous studies used rather high dosages, and little is known about the acute effect of small dosages. OBJECTIVE We evaluated whether an acute treatment with Remotiv 500 and Remotiv 250 (500 or 250 mg of H. perforatum quantified to either 1 or 0.5 mg of hypericin) improved memory and sustained attention, as well as mood and state anxiety in healthy adults. METHOD A single dosage, randomized, double-blind, placebo-controlled trial was conducted with 82 student participants (33 women). Each participant received placebo in one session and one of two dosages in the other session. Order of the sessions and dosage conditions were randomized between subjects. Participants completed a battery of tasks assessing short-term memory capacity and sustained attention. RESULTS A significant positive effect of Remotiv 250 on digit span (mean Cohen's d = 0.58; p = .01) was observed. By contrast, Remotiv 500 had a negative effect on digit span (mean d = - 0.48, p = 0.04). A similar effect emerged when factoring across tests of short-term memory. Both dosages improved mood (d = 0.60, p = .03). CONCLUSIONS The results indicate that acute treatment with small (250 mg) dosages of H. perforatum has a positive effect on the capacity of short-term verbal memory, and stress the importance of maintaining small dosages in nootropic applications. TRIAL REGISTRATION www.clinicaltrials.gov NCT02862236.
Collapse
|
27
|
Ott T, Nieder A. Dopamine and Cognitive Control in Prefrontal Cortex. Trends Cogn Sci 2019; 23:213-234. [PMID: 30711326 DOI: 10.1016/j.tics.2018.12.006] [Citation(s) in RCA: 242] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/20/2018] [Accepted: 12/28/2018] [Indexed: 12/16/2022]
Abstract
Cognitive control, the ability to orchestrate behavior in accord with our goals, depends on the prefrontal cortex. These cognitive functions are heavily influenced by the neuromodulator dopamine. We review here recent insights exploring the influence of dopamine on neuronal response properties in prefrontal cortex (PFC) during ongoing behaviors in primates. This review suggests three major computational roles of dopamine in cognitive control: (i) gating sensory input, (ii) maintaining and manipulating working memory contents, and (iii) relaying motor commands. For each of these roles, we propose a neuronal microcircuit based on known mechanisms of action of dopamine in PFC, which are corroborated by computational network models. This conceptual approach accounts for the various roles of dopamine in prefrontal executive functioning.
Collapse
Affiliation(s)
- Torben Ott
- Animal Physiology Unit, Institute of Neurobiology, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; Present address: Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA
| | - Andreas Nieder
- Animal Physiology Unit, Institute of Neurobiology, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany.
| |
Collapse
|
28
|
Fallon SJ, Muhammed K, Drew DS, Ang YS, Manohar SG, Husain M. Dopamine guides competition for cognitive control: Common effects of haloperidol on working memory and response conflict. Cortex 2018; 113:156-168. [PMID: 30660954 DOI: 10.1016/j.cortex.2018.11.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 10/10/2018] [Accepted: 11/27/2018] [Indexed: 01/26/2023]
Abstract
Several lines of evidence suggest that dopamine modulates working memory (the ability to faithfully maintain and efficiently manipulate information over time) but its specific role has not been fully defined. Nor is it clear whether any effects of dopamine are specific to memory processes or whether they reflect more general cognitive mechanisms that extend beyond the working memory domain. Here, we examine the effect of haloperidol, principally a dopamine D2 receptor antagonist, on the ability of humans to ignore distracting information or update working memory contents. We compare these effects to performance on an independent measure of cognitive control (response conflict) which has minimal memory requirements. Haloperidol did not selectively affect the ability to ignore or update, but instead reduced the overall quality of recall. In addition, it impaired the ability to overcome response conflict. The deleterious effect of haloperidol on response conflict was selectively associated with the negative effect of the drug on ignoring - but not updating - suggesting that dopamine affects protection of working memory contents and inhibition in response conflict through a common mechanism. These findings provide new insights into the role of dopamine D2 receptors on human cognition. They suggest that D2 receptor effects on protecting the memory contents from distraction might be related to a more general process that supports inhibitory control in contexts that do not require working memory.
Collapse
Affiliation(s)
- Sean James Fallon
- Department of Experimental Psychology, University of Oxford, Oxford, UK.
| | - Kinan Muhammed
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Daniel S Drew
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| | - Yuen-Siang Ang
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Sanjay G Manohar
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| | - Masud Husain
- Department of Experimental Psychology, University of Oxford, Oxford, UK; Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| |
Collapse
|
29
|
Miguel PM, Deniz BF, Deckmann I, Confortim HD, Diaz R, Laureano DP, Silveira PP, Pereira LO. Prefrontal cortex dysfunction in hypoxic-ischaemic encephalopathy contributes to executive function impairments in rats: Potential contribution for attention-deficit/hyperactivity disorder. World J Biol Psychiatry 2018; 19:547-560. [PMID: 28105895 DOI: 10.1080/15622975.2016.1273551] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The attention-deficit/hyperactivity disorder (ADHD) compromises the quality of life of individuals including adaptation to the social environment. ADHD aetiology includes perinatal conditions such as hypoxic-ischaemic events; preclinical studies have demonstrated attentional deficits and impulsive-hyperactive outcomes after neonatal hypoxic and/or ischaemic intervention, but data are missing to understand this relationship. Thus, the aim of this study was to evaluate executive function (EF) and impulsivity, and tissue integrity and dopaminergic function in the prefrontal cortex (PFC) of rats submitted to hypoxia-ischaemia (HI). METHODS At postnatal day (PND) 7, male Wistar rats were divided into control (n = 10) and HI groups (n = 11) and the HI procedure was conducted. At PND60, the animals were tested in the attentional set-shifting (ASS) task to EF and in the tolerance to delay of reward for assessment of impulsivity. After, morphological analysis and the dopaminergic system were evaluated in the PFC. RESULTS Animals subjected to HI had impairments in EF evidenced by a behavioural inflexibility that was correlated to PFC atrophy. Moreover, HI animals presented reduced D2 receptors in the ipsilateral side of ischaemia in the PFC. CONCLUSIONS Animals submitted to HI presented impaired EF associated with tissue atrophy and dopaminergic disturbance in the PFC.
Collapse
Affiliation(s)
- Patrícia Maidana Miguel
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,b Departamento de Ciências Morfológicas, ICBS , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| | - Bruna Ferrary Deniz
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,b Departamento de Ciências Morfológicas, ICBS , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| | - Iohanna Deckmann
- b Departamento de Ciências Morfológicas, ICBS , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| | - Heloísa Deola Confortim
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,b Departamento de Ciências Morfológicas, ICBS , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| | - Ramiro Diaz
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,b Departamento de Ciências Morfológicas, ICBS , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| | - Daniela Pereira Laureano
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| | - Patrícia Pelufo Silveira
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,c Programa de Pós-Graduação em Saúde da Criança e do Adolescente, Faculdade de Medicina , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,d Ludmer Centre for Neuroinformatics and Mental Health , Douglas Mental Health University Institute, McGill University , Montreal , QC , Canada
| | - Lenir Orlandi Pereira
- a Programa de Pós-Graduação em Neurociências, Instituto de Ciências Básicas da Saúde (ICBS) , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil.,b Departamento de Ciências Morfológicas, ICBS , Universidade Federal do Rio Grande do Sul , Porto Alegre , RS , Brazil
| |
Collapse
|
30
|
Beversdorf DQ. Neuropsychopharmacological regulation of performance on creativity-related tasks. Curr Opin Behav Sci 2018; 27:55-63. [PMID: 31106256 DOI: 10.1016/j.cobeha.2018.09.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A number of factors affect performance on tasks associated with creativity. Two pharmacological systems in particularly been identified as important for their impact on creativity, the noradrenergic system and the dopaminergic systems. Furthermore, stress is also established as an important factor impacting performance, most likely mediated by its effects on these neurotransmitter systems. Herein, we review the current literature on the relationships between stress, the noradrenergic system, the dopaminergic system, and other pharmacological factors and their effects on performance on tasks associated with creativity.
Collapse
Affiliation(s)
- David Q Beversdorf
- William and Nancy Thompson Endowed Chair in Radiology, University of Missouri
| |
Collapse
|
31
|
Putkinen V, Makkonen T, Eerola T. Music-induced positive mood broadens the scope of auditory attention. Soc Cogn Affect Neurosci 2018; 12:1159-1168. [PMID: 28460035 PMCID: PMC5490675 DOI: 10.1093/scan/nsx038] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 03/15/2017] [Indexed: 01/13/2023] Open
Abstract
Previous studies indicate that positive mood broadens the scope of visual attention, which can manifest as heightened distractibility. We used event-related potentials (ERP) to investigate whether music-induced positive mood has comparable effects on selective attention in the auditory domain. Subjects listened to experimenter-selected happy, neutral or sad instrumental music and afterwards participated in a dichotic listening task. Distractor sounds in the unattended channel elicited responses related to early sound encoding (N1/MMN) and bottom-up attention capture (P3a) while target sounds in the attended channel elicited a response related to top-down-controlled processing of task-relevant stimuli (P3b). For the subjects in a happy mood, the N1/MMN responses to the distractor sounds were enlarged while the P3b elicited by the target sounds was diminished. Behaviorally, these subjects tended to show heightened error rates on target trials following the distractor sounds. Thus, the ERP and behavioral results indicate that the subjects in a happy mood allocated their attentional resources more diffusely across the attended and the to-be-ignored channels. Therefore, the current study extends previous research on the effects of mood on visual attention and indicates that even unfamiliar instrumental music can broaden the scope of auditory attention via its effects on mood.
Collapse
Affiliation(s)
- Vesa Putkinen
- Department of Music, University of Jyväskylä, Jyväskylä, Finland.,Cognitive Brain Research Unit, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland
| | - Tommi Makkonen
- Cognitive Brain Research Unit, Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland
| | - Tuomas Eerola
- Department of Music, University of Jyväskylä, Jyväskylä, Finland.,Department of Music, Durham University, Durham, UK
| |
Collapse
|
32
|
Piray P, den Ouden HEM, van der Schaaf ME, Toni I, Cools R. Dopaminergic Modulation of the Functional Ventrodorsal Architecture of the Human Striatum. Cereb Cortex 2018; 27:485-495. [PMID: 26494799 DOI: 10.1093/cercor/bhv243] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Interactions between motivational, cognitive, and motor regions of the striatum are crucial for implementing behavioral control. Work with experimental animals indicates that such interactions are sensitive to modulation by dopamine. Using systematic pharmacological manipulation of dopamine D2-receptors and resting-state functional imaging, we defined the functional architecture of the human striatum and quantified the effects of dopaminergic drugs on intrinsic effective connectivity between striatal subregions. We found that dopamine modulates interactions between motivational and cognitive regions, as well cognitive and motor regions of the striatum. Stimulation and blockade of the dopamine D2-receptor had opposite (increasing and decreasing) effects on the efficacy of those interactions. Furthermore, trait impulsivity was specifically associated with dopaminergic modulation of ventral-to-dorsal striatal connectivity. Individuals with high trait impulsivity exhibited greater drug-induced increases (after stimulation) and decreases (after blockade) of ventral-to-dorsal striatal connectivity than those with low trait impulsivity. These observations establish a key link between dopamine, intrinsic effective connectivity between striatal subregions, and trait impulsivity.
Collapse
Affiliation(s)
- Payam Piray
- Donders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, The Netherlands
| | - Hanneke E M den Ouden
- Donders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, The Netherlands
| | - Marieke E van der Schaaf
- Donders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, The Netherlands.,Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ivan Toni
- Donders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, The Netherlands
| | - Roshan Cools
- Donders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, The Netherlands.,Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
33
|
Boot N, Baas M, van Gaal S, Cools R, De Dreu CKW. Creative cognition and dopaminergic modulation of fronto-striatal networks: Integrative review and research agenda. Neurosci Biobehav Rev 2017; 78:13-23. [PMID: 28419830 DOI: 10.1016/j.neubiorev.2017.04.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 03/28/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022]
Abstract
Creative cognition is key to human functioning yet the underlying neurobiological mechanisms are sparsely addressed and poorly understood. Here we address the possibility that creative cognition is a function of dopaminergic modulation in fronto-striatal brain circuitries. It is proposed that (i) creative cognition benefits from both flexible and persistent processing, (ii) striatal dopamine and the integrity of the nigrostriatal dopaminergic pathway is associated with flexible processing, while (iii) prefrontal dopamine and the integrity of the mesocortical dopaminergic pathway is associated with persistent processing. We examine this possibility in light of studies linking creative ideation, divergent thinking, and creative problem-solving to polymorphisms in dopamine receptor genes, indirect markers and manipulations of the dopaminergic system, and clinical populations with dysregulated dopaminergic activity. Combined, studies suggest a functional differentiation between striatal and prefrontal dopamine: moderate (but not low or high) levels of striatal dopamine benefit creative cognition by facilitating flexible processes, and moderate (but not low or high) levels of prefrontal dopamine enable persistence-driven creativity.
Collapse
Affiliation(s)
- Nathalie Boot
- Department of Psychology, University of Amsterdam, The Netherlands.
| | - Matthijs Baas
- Department of Psychology, University of Amsterdam, The Netherlands
| | - Simon van Gaal
- Department of Psychology, University of Amsterdam, The Netherlands; Donders Institute for Brain, Cognition, and Behavior, Centre for Cognitive Neuroimaging, The Netherlands
| | - Roshan Cools
- Donders Institute for Brain, Cognition, and Behavior, Centre for Cognitive Neuroimaging, The Netherlands; Department of Psychiatry, Radboud University Medical Center, The Netherlands
| | - Carsten K W De Dreu
- Department of Psychology, Leiden University, The Netherlands; Leiden Institute for Brain and Cognition, Leiden University, The Netherlands; Center for Experimental Economics and Political Decision Making (CREED), University of Amsterdam, The Netherlands
| |
Collapse
|
34
|
Effects of dopamine D2/D3 receptor antagonism on human planning and spatial working memory. Transl Psychiatry 2017; 7:e1107. [PMID: 28440817 PMCID: PMC5416697 DOI: 10.1038/tp.2017.56] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 12/15/2016] [Accepted: 01/24/2017] [Indexed: 11/16/2022] Open
Abstract
Psychopharmacological studies in humans suggest important roles for dopamine (DA) D2 receptors in human executive functions, such as cognitive planning and spatial working memory (SWM). However, studies that investigate an impairment of such functions using the selective DA D2/3 receptor antagonist sulpiride have yielded inconsistent results, perhaps because relatively low doses were used. We believe we report for the first time, the effects of a higher (800 mg p.o.) single dose of sulpiride as well as of genetic variation in the DA receptor D2 gene (DA receptor D2 Taq1A polymorphism), on planning and working memory. With 78 healthy male volunteers, we apply a between-groups, placebo-controlled design. We measure outcomes in the difficult versions of the Cambridge Neuropsychological Test Automated Battery One-Touch Stockings of Cambridge and the self-ordered SWM task. Volunteers in the sulpiride group showed significant impairments in planning accuracy and, for the more difficult problems, in SWM. Sulpiride administration speeded response latencies in the planning task on the most difficult problems. Volunteers with at least one copy of the minor allele (A1+) of the DA receptor D2 Taq1A polymorphism showed better SWM capacity, regardless of whether they received sulpiride or placebo. There were no effects on blood pressure, heart rate or subjective sedation. In sum, a higher single dose of sulpiride impairs SWM and executive planning functions, in a manner independent of the DA receptor D2 Taq1A polymorphism.
Collapse
|
35
|
Fallon SJ, Zokaei N, Norbury A, Manohar SG, Husain M. Dopamine Alters the Fidelity of Working Memory Representations according to Attentional Demands. J Cogn Neurosci 2016; 29:728-738. [PMID: 27897674 PMCID: PMC5889096 DOI: 10.1162/jocn_a_01073] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Capacity limitations in working memory (WM) necessitate the need to
effectively control its contents. Here, we examined the effect of cabergoline, a
dopamine D2 receptor agonist, on WM using a continuous report
paradigm that allowed us to assess the fidelity with which items are stored. We
assessed recall performance under three different gating conditions: remembering
only one item, being cued to remember one target among distractors, and having
to remember all items. Cabergoline had differential effects on recall
performance according to whether distractors had to be ignored and whether
mnemonic resources could be deployed exclusively to the target. Compared with
placebo, cabergoline improved mnemonic performance when there were no
distractors but significantly reduced performance when distractors were
presented in a precue condition. No significant difference in performance was
observed under cabergoline when all items had to be remembered. By applying a
stochastic model of response selection, we established that the causes of
drug-induced changes in performance were due to changes in the precision with
which items were stored in WM. However, there was no change in the extent to
which distractors were mistaken for targets. Thus, D2 agonism causes
changes in the fidelity of mnemonic representations without altering
interference between memoranda.
Collapse
Affiliation(s)
| | | | | | | | - Masud Husain
- University of Oxford.,John Radcliffe Hospital, Oxford, UK
| |
Collapse
|
36
|
Fallon SJ, van der Schaaf ME, Ter Huurne N, Cools R. The Neurocognitive Cost of Enhancing Cognition with Methylphenidate: Improved Distractor Resistance but Impaired Updating. J Cogn Neurosci 2016; 29:652-663. [PMID: 27779907 DOI: 10.1162/jocn_a_01065] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A balance has to be struck between supporting distractor-resistant representations in working memory and allowing those representations to be updated. Catecholamine, particularly dopamine, transmission has been proposed to modulate the balance between the stability and flexibility of working memory representations. However, it is unclear whether drugs that increase catecholamine transmission, such as methylphenidate, optimize this balance in a task-dependent manner or bias the system toward stability at the expense of flexibility (or vice versa). Here we demonstrate, using pharmacological fMRI, that methylphenidate improves the ability to resist distraction (cognitive stability) but impairs the ability to flexibly update items currently held in working memory (cognitive flexibility). These behavioral effects were accompanied by task-general effects in the striatum and opposite and task-specific effects on neural signal in the pFC. This suggests that methylphenidate exerts its cognitive enhancing and impairing effects through acting on the pFC, an effect likely associated with methylphenidate's action on the striatum. These findings highlight that methylphenidate acts as a double-edged sword, improving one cognitive function at the expense of another, while also elucidating the neurocognitive mechanisms underlying these paradoxical effects.
Collapse
Affiliation(s)
- Sean James Fallon
- Radboud University Donders Institute of Brain, Cognition, and Behavior.,University of Oxford
| | - Marieke E van der Schaaf
- Radboud University Donders Institute of Brain, Cognition, and Behavior.,Radboud University Nijmegen Medical Centre
| | | | - Roshan Cools
- Radboud University Donders Institute of Brain, Cognition, and Behavior.,Radboud University Nijmegen Medical Centre
| |
Collapse
|
37
|
MK-801-induced deficits in social recognition in rats: reversal by aripiprazole, but not olanzapine, risperidone, or cannabidiol. Behav Pharmacol 2016; 26:748-65. [PMID: 26287433 DOI: 10.1097/fbp.0000000000000178] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Deficiencies in social activities are hallmarks of numerous brain disorders. With respect to schizophrenia, social withdrawal belongs to the category of negative symptoms and is associated with deficits in the cognitive domain. Here, we used the N-methyl-D-aspartate receptor antagonist dizocilpine (MK-801) for induction of social withdrawal in rats and assessed the efficacy of several atypical antipsychotics with different pharmacological profiles as putative treatment. In addition, we reasoned that the marijuana constituent cannabidiol (CBD) may provide benefit or could be proposed as an adjunct treatment in combination with antipsychotics. Hooded Lister rats were tested in the three-chamber version for social interaction, with an initial novelty phase, followed after 3 min by a short-term recognition memory phase. No drug treatment affected sociability. However, distinct effects on social recognition were revealed. MK-801 reduced social recognition memory at all doses (>0.03 mg/kg). Predosing with aripiprazole dose-dependently (2 or 10 mg/kg) prevented the memory decline, but doses of 0.1 mg/kg risperidone or 1 mg/kg olanzapine did not. Intriguingly, CBD impaired social recognition memory (12 and 30 mg/kg) but did not rescue the MK-801-induced deficits. When CBD was combined with protective doses of aripiprazole (CBD-aripiprazole at 12 : or 5 : 2 mg/kg) the benefit of the antipsychotic was lost. At the same time, activity-related changes in behaviour were excluded as underlying reasons for these pharmacological effects. Collectively, the combined activity of aripiprazole on dopamine D2 and serotonin 5HT1A receptors appears to provide a significant advantage over risperidone and olanzapine with respect to the rescue of cognitive deficits reminiscent of schizophrenia. The differential pharmacological properties of CBD, which are seemingly beneficial in human patients, did not back-translate and rescue the MK-801-induced social memory deficit.
Collapse
|
38
|
Borg J, Cervenka S, Kuja-Halkola R, Matheson GJ, Jönsson EG, Lichtenstein P, Henningsson S, Ichimiya T, Larsson H, Stenkrona P, Halldin C, Farde L. Contribution of non-genetic factors to dopamine and serotonin receptor availability in the adult human brain. Mol Psychiatry 2016; 21:1077-84. [PMID: 26821979 DOI: 10.1038/mp.2015.147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 07/10/2015] [Accepted: 08/05/2015] [Indexed: 12/12/2022]
Abstract
The dopamine (DA) and serotonin (5-HT) neurotransmission systems are of fundamental importance for normal brain function and serve as targets for treatment of major neuropsychiatric disorders. Despite central interest for these neurotransmission systems in psychiatry research, little is known about the regulation of receptor and transporter density levels. This lack of knowledge obscures interpretation of differences in protein availability reported in psychiatric patients. In this study, we used positron emission tomography (PET) in a twin design to estimate the relative contribution of genetic and environmental factors, respectively, on dopaminergic and serotonergic markers in the living human brain. Eleven monozygotic and 10 dizygotic healthy male twin pairs were examined with PET and [(11)C]raclopride binding to the D2- and D3-dopamine receptor and [(11)C]WAY100635 binding to the serotonin 5-HT1A receptor. Heritability, shared environmental effects and individual-specific non-shared effects were estimated for regional D2/3 and 5-HT1A receptor availability in projection areas. We found a major contribution of genetic factors (0.67) on individual variability in striatal D2/3 receptor binding and a major contribution of environmental factors (pairwise shared and unique individual; 0.70-0.75) on neocortical 5-HT1A receptor binding. Our findings indicate that individual variation in neuroreceptor availability in the adult brain is the end point of a nature-nurture interplay, and call for increased efforts to identify not only the genetic but also the environmental factors that influence neurotransmission in health and disease.
Collapse
Affiliation(s)
- J Borg
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - S Cervenka
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden
| | - R Kuja-Halkola
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - G J Matheson
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden
| | - E G Jönsson
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden.,NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Oslo, Norway
| | - P Lichtenstein
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - S Henningsson
- Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital, Hvidovre, Denmark
| | - T Ichimiya
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden.,Department of Neuropsychiatry, Nippon Medical School, Tokyo, Japan
| | - H Larsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - P Stenkrona
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden
| | - C Halldin
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden
| | - L Farde
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet, Stockholm, Sweden.,AstraZeneca Translational Science Center at Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
39
|
The effects of PDE10 inhibition on attentional set-shifting do not depend on the activation of dopamine D1 receptors. Behav Pharmacol 2016; 27:331-8. [DOI: 10.1097/fbp.0000000000000201] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
40
|
COMT val158met moderation of dopaminergic drug effects on cognitive function: a critical review. THE PHARMACOGENOMICS JOURNAL 2016; 16:430-8. [PMID: 27241058 PMCID: PMC5028240 DOI: 10.1038/tpj.2016.43] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 04/29/2016] [Accepted: 05/04/2016] [Indexed: 12/20/2022]
Abstract
The relationship between dopamine (DA) tone in the prefrontal cortex (PFC) and PFC-dependent cognitive functions (for example, working memory, selective attention, executive function) may be described by an inverted-U-shaped function, in which both excessively high and low DA is associated with impairment. In the PFC, the COMT val158met single nucleotide polymorphism (rs4680) confers differences in catechol-O-methyltransferase (COMT) efficacy and DA tone, and individuals homozygous for the val allele display significantly reduced cortical DA. Many studies have investigated whether val158met genotype moderates the effects of dopaminergic drugs on PFC-dependent cognitive functions. A review of 25 such studies suggests evidence for this pharmacogenetic effect is mixed for stimulants and COMT inhibitors, which have greater effects on D1 receptors, and strong for antipsychotics, which have greater effects on D2 receptors. Overall, COMT val158met genotype represents an enticing target for identifying individuals who are more likely to respond positively to dopaminergic drugs.
Collapse
|
41
|
Parikh V, Naughton SX, Yegla B, Guzman DM. Impact of partial dopamine depletion on cognitive flexibility in BDNF heterozygous mice. Psychopharmacology (Berl) 2016; 233:1361-75. [PMID: 26861892 PMCID: PMC4814303 DOI: 10.1007/s00213-016-4229-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/30/2016] [Indexed: 12/17/2022]
Abstract
RATIONALE Cognitive flexibility is a key component of executive function and is disrupted in major psychiatric disorders. Brain-derived neurotrophic factor (BDNF) exerts neuromodulatory effects on synaptic transmission and cognitive/affective behaviors. However, the causal mechanisms linking BDNF hypofunction with executive deficits are not well understood. OBJECTIVES Here, we assessed the consequences of BDNF hemizygosity on cognitive flexibility in mice performing an operant conditioning task. As dopaminergic-glutamatergic interaction in the striatum is important for cognitive processing, and BDNF heterozygous (BDNF(+/-)) mice display a higher dopamine tone in the dorsal striatum, we also assessed the effects of partial striatal dopamine depletion on task performance and glutamate release. RESULTS BDNF(+/-) mice acquired discrimination learning as well as new rule learning during set-shifting as efficiently as wild-type mice. However, partial removal of striatal dopaminergic inputs with 6-hydroxydopamine (6-OHDA) impaired these cognitive processes by impeding the maintenance of a new learning strategy in both genotypes. BDNF mutants exhibited performance impairments during reversal learning, and these deficits were associated with increased perseveration to the previously acquired strategy. Partial dopamine depletion of the striatum reversed these cognitive impairments. Additionally, reduction in depolarization-evoked glutamate release noted in the dorsal striatum of BDNF(+/-) mice was not observed in 6-OHDA-infused BDNF mutants indicating normalization of glutamatergic transmission in these animals. CONCLUSIONS Our data illustrate that BDNF signaling regulates cognitive control processes presumably by maintaining striatal dopamine-glutamate balance. Moreover, aberrations in BDNF signaling may act as a common neurobiological substrate that accounts for executive dysfunction observed in multiple psychiatric conditions.
Collapse
Affiliation(s)
- Vinay Parikh
- Department of Psychology and Neuroscience Program, Temple University, Philadelphia, PA, 19122, USA.
| | | | | | | |
Collapse
|
42
|
Sase A, Aher YD, Saroja SR, Ganesan MK, Sase S, Holy M, Höger H, Bakulev V, Ecker GF, Langer T, Sitte HH, Leban J, Lubec G. A heterocyclic compound CE-103 inhibits dopamine reuptake and modulates dopamine transporter and dopamine D1-D3 containing receptor complexes. Neuropharmacology 2016; 102:186-96. [DOI: 10.1016/j.neuropharm.2015.07.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 07/29/2015] [Accepted: 07/31/2015] [Indexed: 01/11/2023]
|
43
|
Guarnieri RV, Ribeiro RL, de Souza AAL, Galduróz JCF, Covolan L, Bueno OFA. Effects of Sulpiride on True and False Memories of Thematically Related Pictures and Associated Words in Healthy Volunteers. Front Psychiatry 2016; 7:28. [PMID: 27047394 PMCID: PMC4796014 DOI: 10.3389/fpsyt.2016.00028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/19/2016] [Indexed: 12/20/2022] Open
Abstract
Episodic memory, working memory, emotional memory, and attention are subject to dopaminergic modulation. However, the potential role of dopamine on the generation of false memories is unknown. This study defined the role of the dopamine D2 receptor on true and false recognition memories. Twenty-four young, healthy volunteers ingested a single dose of placebo or 400 mg oral sulpiride, a dopamine D2-receptor antagonist, just before starting the recognition memory task in a randomized, double-blind, and placebo-controlled trial. The sulpiride group presented more false recognitions during visual and verbal processing than the placebo group, although both groups had the same indices of true memory. These findings demonstrate that dopamine D2 receptors blockade in healthy volunteers can specifically increase the rate of false recognitions. The findings fit well the two-process view of causes of false memories, the activation/monitoring failures model.
Collapse
Affiliation(s)
- Regina V Guarnieri
- Department of Psychobiology, Universidade Federal de São Paulo , São Paulo , Brazil
| | - Rafaela L Ribeiro
- Department of Psychobiology, Universidade Federal de São Paulo , São Paulo , Brazil
| | | | | | - Luciene Covolan
- Department of Physiology, Universidade Federal de São Paulo , São Paulo , Brazil
| | - Orlando F A Bueno
- Department of Psychobiology, Universidade Federal de São Paulo , São Paulo , Brazil
| |
Collapse
|
44
|
Deficits in Sustained Attention and Changes in Dopaminergic Protein Levels following Exposure to Proton Radiation Are Related to Basal Dopaminergic Function. PLoS One 2015; 10:e0144556. [PMID: 26658810 PMCID: PMC4684339 DOI: 10.1371/journal.pone.0144556] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 11/19/2015] [Indexed: 12/20/2022] Open
Abstract
The current report assessed the effects of low-level proton irradiation in inbred adult male Fischer 344 and Lewis rats performing an analog of the human Psychomotor Vigilance Test (PVT), commonly utilized as an object risk assessment tool to quantify fatigue and sustained attention in laboratory, clinical, and operational settings. These strains were used to determine if genetic differences in dopaminergic function would impact radiation-induced deficits in sustained attention. Exposure to head-only proton irradiation (25 or 100 cGy) disrupted rPVT performance in a strain-specific manner, with 25 cGy-exposed Fischer 344 rats displaying the most severe deficits in sustained attention (i.e., decreased accuracy and increased premature responding); Lewis rats did not display behavioral deficits following radiation. Fischer 344 rats displayed greater tyrosine hydroxylase and dopamine transporter levels in the frontal cortex compared to the Lewis rats, even though radiation exposure increased both of these proteins in the Lewis rats only. Tyrosine hydroxylase was decreased in the parietal cortex of both rat strains following radiation exposure, regardless of proton dose. Strain-specific cytokine changes were also found in the frontal cortex, with the Lewis rats displaying increased levels of putative neurotrophic cytokines (e.g., CNTF). These data support the hypothesis that basal dopaminergic function impacts the severity of radiation-induced deficits in sustained attention.
Collapse
|
45
|
Fallon SJ, Smulders K, Esselink RA, van de Warrenburg BP, Bloem BR, Cools R. Differential optimal dopamine levels for set-shifting and working memory in Parkinson's disease. Neuropsychologia 2015; 77:42-51. [DOI: 10.1016/j.neuropsychologia.2015.07.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 07/28/2015] [Accepted: 07/30/2015] [Indexed: 12/16/2022]
|
46
|
Remission Rate and Functional Outcomes During a 6-Month Treatment With Osmotic-Release Oral-System Methylphenidate in Children With Attention-Deficit/Hyperactivity Disorder. J Clin Psychopharmacol 2015; 35:525-34. [PMID: 26267421 DOI: 10.1097/jcp.0000000000000389] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Many definitions have been used to evaluate remission in patients with attention-deficit/hyperactivity disorder (ADHD) in different studies resulting with varied remission rates. This open-label, multicenter study investigated the remission rate in Chinese children (n = 239; aged 6-16 years) with a diagnosis of ADHD (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition), treated with osmotic-release oral-system methylphenidate at doses of 18, 36, and 54 mg, once daily. Two definitions of remission were used: (1) (primary end point): average scores of SNAP-IV (Swanson, Nolan, and Pelham, Fourth Edition) items of 1 or less (0-3 rating scale for each item) according to the subtype of ADHD (inattentive [1-9], hyperactive-impulsive [10-18], and combined type [1-18]), and (2) total score of SNAP-IV items 1 to 18 of 18 or less, at week 8. The study consisted of screening/baseline, titration/open-label treatment (8 weeks), and extended observation (up to 24 weeks) phases. Secondary efficacy assessments were Clinical Global Impression-Improvement (clinical efficacy), Behavior Rating Inventory of Executive Function Scale (BRIEF; executive function behaviors), and Weiss Functional Impairment Rating Scale (social function). Validity of remission was assessed by comparing the function measures (BRIEF and Weiss's) between patients who achieved remission and those who did not. At week 8, 69.3% (151/218) of patients achieved remission by definition 1, and 73.2% (161/220) by definition 2. At weeks 8 and 24, the remission group had significantly lower BRIEF, Weiss's, and Clinical Global Impression-Improvement scores (P < 0.001 for all) compared with the nonremission group. Overall, treatment with osmotic-release oral-system methylphenidate was well tolerated, with increased remission rates in children with ADHD.
Collapse
|
47
|
Right external globus pallidus changes are associated with altered causal awareness in youth with depression. Transl Psychiatry 2015; 5:e653. [PMID: 26440541 PMCID: PMC4930125 DOI: 10.1038/tp.2015.148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 08/04/2015] [Accepted: 08/12/2015] [Indexed: 01/29/2023] Open
Abstract
Cognitive impairment is a functionally disabling feature of depression contributing to maladaptive decision-making, a loss of behavioral control and an increased disease burden. The ability to calculate the causal efficacy of ones actions in achieving specific goals is critical to normal decision-making and, in this study, we combined voxel-based morphometry (VBM), shape analysis and diffusion tensor tractography to investigate the relationship between cortical-basal ganglia structural integrity and such causal awareness in 43 young subjects with depression and 21 demographically similar healthy controls. Volumetric analysis determined a relationship between right pallidal size and sensitivity to the causal status of specific actions. More specifically, shape analysis identified dorsolateral surface vertices where an inward location was correlated with reduced levels of causal awareness. Probabilistic tractography revealed that affected parts of the pallidum were primarily connected with the striatum, dorsal thalamus and hippocampus. VBM did not reveal any whole-brain gray matter regions that correlated with causal awareness. We conclude that volumetric reduction within the indirect pathway involving the right dorsolateral pallidum is associated with reduced awareness of the causal efficacy of goal-directed actions in young depressed individuals. This causal awareness task allows for the identification of a functionally and biologically relevant subgroup to which more targeted cognitive interventions could be applied, potentially enhancing the long-term outcomes for these individuals.
Collapse
|
48
|
Karabacak Y, Sase S, Aher YD, Sase A, Saroja SR, Cicvaric A, Höger H, Berger M, Bakulev V, Sitte HH, Leban J, Monje FJ, Lubec G. The effect of modafinil on the rat dopamine transporter and dopamine receptors D1-D3 paralleling cognitive enhancement in the radial arm maze. Front Behav Neurosci 2015; 9:215. [PMID: 26347626 PMCID: PMC4541367 DOI: 10.3389/fnbeh.2015.00215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 07/30/2015] [Indexed: 01/11/2023] Open
Abstract
A series of drugs have been reported to increase memory performance modulating the dopaminergic system and herein modafinil was tested for its working memory (WM) enhancing properties. Reuptake inhibition of dopamine, serotonin (SERT) and norepinephrine (NET) by modafinil was tested. Sixty male Sprague–Dawley rats were divided into six groups (modafinil-treated 1–5–10 mg/kg body weight, trained and untrained and vehicle treated trained and untrained rats; daily injected intraperitoneally for a period of 10 days) and tested in a radial arm maze (RAM), a paradigm for testing spatial WM. Hippocampi were taken 6 h following the last day of training and complexes containing the unphosphorylated or phosphorylated dopamine transporter (DAT-CC and pDAT-CC) and complexes containing the D1–3 dopamine receptor subunits (D1–D3-CC) were determined. Modafinil was binding to the DAT but insignificantly to SERT or NET and dopamine reuptake was blocked specifically (IC50 = 11.11 μM; SERT 1547 μM; NET 182 μM). From day 8 (day 9 for 1 mg/kg body weight) modafinil was decreasing WM errors (WMEs) in the RAM significantly and remarkably at all doses tested as compared to the vehicle controls. WMEs were linked to the D2R-CC and the pDAT-CC. pDAT and D1–D3-CC levels were modulated significantly and modafinil was shown to enhance spatial WM in the rat in a well-documented paradigm at all the three doses and dopamine reuptake inhibition with subsequent modulation of D1–3-CC is proposed as a possible mechanism of action.
Collapse
Affiliation(s)
- Yasemin Karabacak
- Department of Pharmaceutical Chemistry, University of Vienna Vienna, Austria
| | - Sunetra Sase
- Department of Pharmaceutical Chemistry, University of Vienna Vienna, Austria
| | - Yogesh D Aher
- Department of Pharmaceutical Chemistry, University of Vienna Vienna, Austria
| | - Ajinkya Sase
- Department of Pharmaceutical Chemistry, University of Vienna Vienna, Austria
| | | | - Ana Cicvaric
- Department of Neurophysiology and Neuropharmacology, Center for Physiology and Pharmacology, Medical University of Vienna Vienna, Austria
| | - Harald Höger
- Core Unit of Biomedical Research, Division of Laboratory Animal Science and Genetics, Medical University of Vienna, Himberg Austria
| | - Michael Berger
- Center of Brain Research, Medical University of Vienna Vienna, Austria
| | | | - Harald H Sitte
- Institute of Pharmacology, Center of Physiology and Pharmacology, Medical University of Vienna Vienna, Austria
| | - Johann Leban
- Department of Pharmaceutical Chemistry, University of Vienna Vienna, Austria
| | - Francisco J Monje
- Department of Neurophysiology and Neuropharmacology, Center for Physiology and Pharmacology, Medical University of Vienna Vienna, Austria
| | - Gert Lubec
- Department of Pharmaceutical Chemistry, University of Vienna Vienna, Austria
| |
Collapse
|
49
|
Lee KN, Chirwa S. Blocking Dopaminergic Signaling Soon after Learning Impairs Memory Consolidation in Guinea Pigs. PLoS One 2015; 10:e0135578. [PMID: 26275140 PMCID: PMC4537230 DOI: 10.1371/journal.pone.0135578] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 07/25/2015] [Indexed: 11/18/2022] Open
Abstract
Formation of episodic memories (i.e. remembered experiences) requires a process called consolidation which involves communication between the neocortex and hippocampus. However, the neuromodulatory mechanisms underlying this neocortico-hippocampal communication are poorly understood. Here, we examined the involvement of dopamine D1 receptors (D1R) and D2 receptors (D2R) mediated signaling on memory consolidation using the Novel Object Recognition (NOR) test. We conducted the tests in male Hartley guinea pigs and cognitive behaviors were assessed in customized Phenotyper home cages utilizing Ethovision XT software from Noldus enabled for the 3-point detection system (nose, center of the body, and rear). We found that acute intraperitoneal injections of either 0.25 mg/kg SCH23390 to block D1Rs or 1.0 mg/kg sulpiride to block D2Rs soon after acquisition (which involved familiarization to two similar objects) attenuated subsequent discrimination for novel objects when tested after 5-hours in the NOR test. By contrast guinea pigs treated with saline showed robust discrimination for novel objects indicating normal operational processes undergirding memory consolidation. The data suggests that involvement of dopaminergic signaling is a key post-acquisition factor in modulating memory consolidation in guinea pigs.
Collapse
Affiliation(s)
- Kiera-Nicole Lee
- Department of Neuroscience and Pharmacology, Meharry Medical College, 1005 DB Todd Boulevard, Nashville, TN, 37208, United States of America
| | - Sanika Chirwa
- Department of Neuroscience and Pharmacology, Meharry Medical College, 1005 DB Todd Boulevard, Nashville, TN, 37208, United States of America
- Department of Pharmacology, 23 Avenue South & Pierce, Vanderbilt University, Nashville, TN, 37203, United States of America
- * E-mail:
| |
Collapse
|
50
|
Yamaguchi Y, Lee YA, Goto Y. Dopamine in socioecological and evolutionary perspectives: implications for psychiatric disorders. Front Neurosci 2015; 9:219. [PMID: 26136653 PMCID: PMC4468839 DOI: 10.3389/fnins.2015.00219] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 06/01/2015] [Indexed: 12/13/2022] Open
Abstract
Dopamine (DA) transmission in brain areas such as the prefrontal cortex (PFC) and nucleus accumbens (NAcc) plays important roles in cognitive and affective function. As such, DA deficits have been implicated in a number of psychiatric disorders such as schizophrenia and attention deficit/hyperactivity disorder (ADHD). Accumulating evidence suggests that DA is also involved in social behavior of animals and humans. Although most animals organize and live in social groups, how the DA system functions in such social groups of animals, and its dysfunction causes compromises in the groups has remained less understood. Here we propose that alterations of DA signaling and associated genetic variants and behavioral phenotypes, which have been normally considered as “deficits” in investigation at an individual level, may not necessarily yield disadvantages, but even work advantageously, depending on social contexts in groups. This hypothesis could provide a novel insight into our understanding of the biological mechanisms of psychiatric disorders, and a potential explanation that disadvantageous phenotypes associated with DA deficits in psychiatric disorders have remained in humans through evolution.
Collapse
Affiliation(s)
- Yoshie Yamaguchi
- Section of Cognition and Learning, Department of Cognitive Science, Primate Research Institute, Kyoto University Inuyama, Japan
| | - Young-A Lee
- Department of Food Science and Nutrition, Catholic University of Daegu Gyeongsan-Si, Korea
| | - Yukiori Goto
- Section of Cognition and Learning, Department of Cognitive Science, Primate Research Institute, Kyoto University Inuyama, Japan
| |
Collapse
|