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Clairis N, Barakat A, Brochard J, Xin L, Sandi C. A neurometabolic mechanism involving dmPFC/dACC lactate in physical effort-based decision-making. Mol Psychiatry 2024:10.1038/s41380-024-02726-y. [PMID: 39215184 DOI: 10.1038/s41380-024-02726-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 08/21/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Motivation levels vary across individuals, yet the underlying mechanisms driving these differences remain elusive. The dorsomedial prefrontal cortex/dorsal anterior cingulate cortex (dmPFC/dACC) and the anterior insula (aIns) play crucial roles in effort-based decision-making. Here, we investigate the influence of lactate, a key metabolite involved in energy metabolism and signaling, on decisions involving both physical and mental effort, as well as its effects on neural activation. Using proton magnetic resonance spectroscopy and functional MRI in 63 participants, we find that higher lactate levels in the dmPFC/dACC are associated with reduced motivation for physical effort, a relationship mediated by neural activity within this region. Additionally, plasma and dmPFC/dACC lactate levels correlate, suggesting a systemic influence on brain metabolism. Supported by path analysis, our results highlight lactate's role as a modulator of dmPFC/dACC activity, hinting at a neurometabolic mechanism that integrates both peripheral and central metabolic states with brain function in effort-based decision-making.
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Affiliation(s)
- Nicolas Clairis
- Laboratory of Behavioral Genetics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| | - Arthur Barakat
- Laboratory of Behavioral Genetics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Jules Brochard
- Transdisciplinary Research Areas, Life and Health, University of Bonn, Bonn, Germany
| | - Lijing Xin
- Center for Biomedical Imaging (CIBM), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Carmen Sandi
- Laboratory of Behavioral Genetics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
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2
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Strohman A, Payne B, In A, Stebbins K, Legon W. Low-Intensity Focused Ultrasound to the Human Dorsal Anterior Cingulate Attenuates Acute Pain Perception and Autonomic Responses. J Neurosci 2024; 44:e1011232023. [PMID: 38182418 PMCID: PMC10883612 DOI: 10.1523/jneurosci.1011-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/07/2024] Open
Abstract
The dorsal anterior cingulate cortex (dACC) is a critical brain area for pain and autonomic processing, making it a promising noninvasive therapeutic target. We leverage the high spatial resolution and deep focal lengths of low-intensity focused ultrasound (LIFU) to noninvasively modulate the dACC for effects on behavioral and cardiac autonomic responses using transient heat pain stimuli. A N = 16 healthy human volunteers (6 M/10 F) received transient contact heat pain during either LIFU to the dACC or Sham stimulation. Continuous electroencephalogram (EEG), electrocardiogram (ECG), and electrodermal response (EDR) were recorded. Outcome measures included pain ratings, heart rate variability, EDR response, blood pressure, and the amplitude of the contact heat-evoked potential (CHEP).LIFU reduced pain ratings by 1.09 ± 0.20 points relative to Sham. LIFU increased heart rate variability indexed by the standard deviation of normal sinus beats (SDNN), low-frequency (LF) power, and the low-frequency/high-frequency (LF/HF) ratio. There were no effects on the blood pressure or EDR. LIFU resulted in a 38.1% reduction in the P2 CHEP amplitude. Results demonstrate LIFU to the dACC reduces pain and alters autonomic responses to acute heat pain stimuli. This has implications for the causal understanding of human pain and autonomic processing in the dACC and potential future therapeutic options for pain relief and modulation of homeostatic signals.
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Affiliation(s)
- Andrew Strohman
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Roanoke, VA 24016
- Virginia Tech Carilion School of Medicine, Roanoke, VA 24016
| | - Brighton Payne
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016
| | - Alexander In
- Virginia Tech Carilion School of Medicine, Roanoke, VA 24016
| | - Katelyn Stebbins
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Roanoke, VA 24016
- Virginia Tech Carilion School of Medicine, Roanoke, VA 24016
| | - Wynn Legon
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Roanoke, VA 24016
- Virginia Tech Carilion School of Medicine, Roanoke, VA 24016
- Center for Human Neuroscience Research, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016
- Center for Health Behaviors Research, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
- Department of Neurosurgery, Virginia Tech Carilion School of Medicine, Roanoke, VA 24016
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3
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Clairis N, Lopez-Persem A. Debates on the dorsomedial prefrontal/dorsal anterior cingulate cortex: insights for future research. Brain 2023; 146:4826-4844. [PMID: 37530487 PMCID: PMC10690029 DOI: 10.1093/brain/awad263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/19/2023] [Accepted: 07/22/2023] [Indexed: 08/03/2023] Open
Abstract
The dorsomedial prefrontal cortex/dorsal anterior cingulate cortex (dmPFC/dACC) is a brain area subject to many theories and debates over its function(s). Even its precise anatomical borders are subject to much controversy. In the past decades, the dmPFC/dACC has been associated with more than 15 different cognitive processes, which sometimes appear quite unrelated (e.g. body perception, cognitive conflict). As a result, understanding what the dmPFC/dACC does has become a real challenge for many neuroscientists. Several theories of this brain area's function(s) have been developed, leading to successive and competitive publications bearing different models, which sometimes contradict each other. During the last two decades, the lively scientific exchanges around the dmPFC/dACC have promoted fruitful research in cognitive neuroscience. In this review, we provide an overview of the anatomy of the dmPFC/dACC, summarize the state of the art of functions that have been associated with this brain area and present the main theories aiming at explaining the dmPFC/dACC function(s). We explore the commonalities and the arguments between the different theories. Finally, we explain what can be learned from these debates for future investigations of the dmPFC/dACC and other brain regions' functions.
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Affiliation(s)
- Nicolas Clairis
- Laboratory of Behavioral Genetics (LGC)- Brain Mind Institute (BMI)- Sciences de la Vie (SV), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Alizée Lopez-Persem
- FrontLab, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Sorbonne University, AP HP, Hôpital de la Pitié Salpêtrière, 75013 Paris, France
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4
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Pinto AM, Luís M, Geenen R, Palavra F, Lumley MA, Ablin JN, Amris K, Branco J, Buskila D, Castelhano J, Castelo-Branco M, Crofford LJ, Fitzcharles MA, Häuser W, Kosek E, López-Solà M, Mease P, Marques TR, Jacobs JWG, Castilho P, da Silva JAP. Neurophysiological and Psychosocial Mechanisms of Fibromyalgia: A Comprehensive Review and Call for An Integrative Model. Neurosci Biobehav Rev 2023:105235. [PMID: 37207842 DOI: 10.1016/j.neubiorev.2023.105235] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 05/07/2023] [Accepted: 05/14/2023] [Indexed: 05/21/2023]
Abstract
Research into the neurobiological and psychosocial mechanisms involved in fibromyalgia has progressed remarkably in recent years. Despite this, current accounts of fibromyalgia fail to capture the complex, dynamic, and mutual crosstalk between neurophysiological and psychosocial domains. We conducted a comprehensive review of the existing literature in order to: a) synthesize current knowledge on fibromyalgia; b) explore and highlight multi-level links and pathways between different systems; and c) build bridges connecting disparate perspectives. An extensive panel of international experts in neurophysiological and psychosocial aspects of fibromyalgia discussed the collected evidence and progressively refined and conceptualized its interpretation. This work constitutes an essential step towards the development of a model capable of integrating the main factors implicated in fibromyalgia into a single, unified construct which appears indispensable to foster the understanding, assessment, and intervention for fibromyalgia.
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Affiliation(s)
- Ana Margarida Pinto
- University of Coimbra, Center for Research in Neuropsychology and Cognitive and Behavioral Intervention (CINEICC), Faculty of Psychology and Educational Sciences, Rua do Colégio Novo, s/n, 3000-115 Coimbra, Portugal; University of Coimbra, University Clinic of Rheumatology, Faculty of Medicine, Rua Larga - FMUC, Pólo I - Edifício Central, 3004-504 Coimbra, Portugal; University of Coimbra, Psychological Medicine Institute, Faculty of Medicine, Rua Larga - FMUC, Pólo I - Edifício Central, 3004-504 Coimbra, Portugal.
| | - Mariana Luís
- Rheumatology Department, Coimbra Hospital and University Centre, Praceta Mota Pinto, 3004-561 Coimbra, Portugal.
| | - Rinie Geenen
- Department of Psychology, Utrecht University, Martinus J. Langeveldgebouw, Heidelberglaan 1, 3584 CS Utrecht, the Netherlands; Altrecht Psychosomatic Medicine Eikenboom, Vrijbaan 2, 3705 WC Zeist, the Netherlands.
| | - Filipe Palavra
- Centre for Child Development, Neuropediatric Unit. Pediatric Hospital, Coimbra Hospital and University Centre, Avenida Afonso Romão, 3000-602 Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (i.CBR), Faculty of Medicine, University of Coimbra, Azinhaga Santa Comba, 3000-548 Coimbra, Portugal.
| | - Mark A Lumley
- Department of Psychology, Wayne State University, 5057 Woodward Ave., Suite 7908, Detroit, MI 48202, USA.
| | - Jacob N Ablin
- Internal Medicine H, Tel-Aviv Sourasky Medical Center, 6 Weizmann Street, Tel Aviv 6423906, Israel; Sackler School of Medicine, Tel Aviv University, Ramat Aviv 69978, Israel.
| | - Kirstine Amris
- The Parker Institute, Department of Rheumatology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Nordre Fasanvej 57, 2000 Frederiksberg, Denmark.
| | - Jaime Branco
- Rheumatology Department, Egas Moniz Hospital - Lisboa Ocidental Hospital Centre (CHLO-EPE), R. da Junqueira 126, 1349-019 Lisbon, Portugal; Comprehensive Health Research Center (CHRC), Chronic Diseases Research Centre (CEDOC), NOVA Medical School, NOVA University Lisbon (NMS/UNL), Campo Mártires da Pátria 130, 1169-056 Lisbon, Portugal.
| | - Dan Buskila
- Ben Gurion University of the Negev Beer-Sheba, Israel.
| | - João Castelhano
- University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), ICNAS, Edifício do ICNAS, Polo 3, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal, Portugal.
| | - Miguel Castelo-Branco
- University of Coimbra, Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), ICNAS, Edifício do ICNAS, Polo 3, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal, Portugal.
| | - Leslie J Crofford
- Division of Rheumatology and Immunology, Department of Medicine, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville, TN 37232, USA.
| | - Mary-Ann Fitzcharles
- Division of Rheumatology, Department of Medicine, McGill University, 1650 Cedar Ave, Montreal, Quebec, Canada, H3G 1A4.
| | - Winfried Häuser
- Department Psychosomatic Medicine and Psychotherapy, Technical University of Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Eva Kosek
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm 171 77, Sweden; Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
| | - Marina López-Solà
- Serra Hunter Programme, Department of Medicine and Health Sciences, University of Barcelona.
| | - Philip Mease
- Swedish Medical Center/Providence St. Joseph Health, Seattle, WA, USA; University of Washington School of Medicine, Seattle, WA, USA.
| | - Tiago Reis Marques
- Psychiatric Imaging Group, MRC London Institute of Medical Sciences (LMS), Hammersmith Hospital, Imperial College London, South Kensington, London SW7 2BU, UK; Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, Strand, London WC2R 2LS, UK.
| | - Johannes W G Jacobs
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, Netherlands.
| | - Paula Castilho
- University of Coimbra, Center for Research in Neuropsychology and Cognitive and Behavioral Intervention (CINEICC), Faculty of Psychology and Educational Sciences, Rua do Colégio Novo, s/n, 3000-115 Coimbra, Portugal.
| | - José A P da Silva
- University of Coimbra, University Clinic of Rheumatology, Faculty of Medicine, Rua Larga - FMUC, Pólo I - Edifício Central, 3004-504 Coimbra, Portugal; Rheumatology Department, Coimbra Hospital and University Centre, Praceta Mota Pinto, 3004-561 Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (i.CBR), Faculty of Medicine, University of Coimbra, Azinhaga Santa Comba, 3000-548 Coimbra, Portugal
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5
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Vázquez D, Schneider KN, Roesch MR. Neural signals implicated in the processing of appetitive and aversive events in social and non-social contexts. Front Syst Neurosci 2022; 16:926388. [PMID: 35993086 PMCID: PMC9381696 DOI: 10.3389/fnsys.2022.926388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
In 2014, we participated in a special issue of Frontiers examining the neural processing of appetitive and aversive events. Specifically, we reviewed brain areas that contribute to the encoding of prediction errors and value versus salience, attention and motivation. Further, we described how we disambiguated these cognitive processes and their neural substrates by using paradigms that incorporate both appetitive and aversive stimuli. We described a circuit in which the orbitofrontal cortex (OFC) signals expected value and the basolateral amygdala (BLA) encodes the salience and valence of both appetitive and aversive events. This information is integrated by the nucleus accumbens (NAc) and dopaminergic (DA) signaling in order to generate prediction and prediction error signals, which guide decision-making and learning via the dorsal striatum (DS). Lastly, the anterior cingulate cortex (ACC) is monitoring actions and outcomes, and signals the need to engage attentional control in order to optimize behavioral output. Here, we expand upon this framework, and review our recent work in which within-task manipulations of both appetitive and aversive stimuli allow us to uncover the neural processes that contribute to the detection of outcomes delivered to a conspecific and behaviors in social contexts. Specifically, we discuss the involvement of single-unit firing in the ACC and DA signals in the NAc during the processing of appetitive and aversive events in both social and non-social contexts.
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Affiliation(s)
- Daniela Vázquez
- Department of Psychology, University of Maryland, College Park, College Park, MD, United States
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, College Park, MD, United States
| | - Kevin N. Schneider
- Department of Psychology, University of Maryland, College Park, College Park, MD, United States
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, College Park, MD, United States
| | - Matthew R. Roesch
- Department of Psychology, University of Maryland, College Park, College Park, MD, United States
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, College Park, MD, United States
- *Correspondence: Matthew R. Roesch,
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6
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Common and stimulus-type-specific brain representations of negative affect. Nat Neurosci 2022; 25:760-770. [DOI: 10.1038/s41593-022-01082-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 04/25/2022] [Indexed: 01/16/2023]
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7
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Bontinck J, den Hollander M, Kaas AL, De Jong JR, Timmers I. Individual Patterns and Temporal Trajectories of Changes in Fear and Pain during Exposure In Vivo: A Multiple Single-Case Experimental Design in Patients with Chronic Pain. J Clin Med 2022; 11:1360. [PMID: 35268453 PMCID: PMC8911417 DOI: 10.3390/jcm11051360] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 02/01/2023] Open
Abstract
Exposure in vivo (EXP) is an effective treatment to reduce pain-related fear and disability in chronic pain populations. Yet, it remains unclear how reductions in fear and pain relate to each other. This single-case experimental design study attempted to identify patterns in the individual responses to EXP and to unravel temporal trajectories of fear and pain. Daily diaries were completed before, during and after EXP. Multilevel modelling analyses were performed to evaluate the overall effect. Temporal effects were scrutinized by individual regression analyses and determination of the time to reach a minimal clinically important difference. Furthermore, individual graphs were visually inspected for potential patterns. Twenty patients with chronic low back pain and complex regional pain syndrome type I were included. On a group level, both fear and pain were reduced following EXP. Individually, fear was significantly reduced in 65% of the patients, while pain in only 20%. A decrease in fear was seen mostly in the first weeks, while pain levels reduced later or remained unchanged. Daily measurements provided rich data on temporal trajectories of reductions in fear and pain. Overall, reductions in fear preceded pain relief and seemed to be essential to achieve pain reductions.
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Affiliation(s)
- Jente Bontinck
- Department of Rehabilitation Sciences and Physiotherapy, Ghent University, 9000 Ghent, Belgium;
- Pain in Motion International Research Group, Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Marlies den Hollander
- Department of Rehabilitation Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands; (M.d.H.); (J.R.D.J.)
- Adelante Centre of Expertise in Rehabilitation and Audiology, 6430 AB Hoensbroek, The Netherlands
| | - Amanda L. Kaas
- Department of Cognitive Neuroscience, Maastricht University, 6229 EV Maastricht, The Netherlands;
| | - Jeroen R. De Jong
- Department of Rehabilitation Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands; (M.d.H.); (J.R.D.J.)
- Intergrin Academy for Specialized Healthcare, 6167 AC Geleen, The Netherlands
| | - Inge Timmers
- Pain in Motion International Research Group, Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
- Department of Rehabilitation Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands; (M.d.H.); (J.R.D.J.)
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8
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Wang D, Casares S, Eilers K, Hitchcock S, Iverson R, Lahn E, Loux M, Schnetzer C, Frey-Law LA. Assessing Multisensory Sensitivity Across Scales: Using the Resulting Core Factors to Create the Multisensory Amplification Scale. THE JOURNAL OF PAIN 2022; 23:276-288. [PMID: 34461307 PMCID: PMC11065416 DOI: 10.1016/j.jpain.2021.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/15/2021] [Accepted: 07/22/2021] [Indexed: 11/17/2022]
Abstract
Multisensory sensitivity (MSS), observed in some chronic pain patients, may reflect a generalized central nervous system sensitivity. While several surveys measure aspects of MSS, there remains no gold standard. We explored the underlying constructs of 4 MSS-related surveys (80 items in total) using factor analyses using REDCap surveys (N = 614, 58.7% with pain). Four core- and 6 associated-MSS factors were identified from the items assessed. None of these surveys addressed all major sensory systems and most included additional related constructs. A revised version of the Somatosensory Amplification Scale was developed, encompassing 5 core MSS systems: vision, hearing, smell, tactile, and internal bodily sensations: the 12-item Multisensory Amplification Scale (MSAS). The MSAS demonstrated good internal consistency (alpha = 0.82), test-retest reliability (ICC3,1 = 0.90), and construct validity in the original and in a new, separate cohort (R = 0.54-0.79, P < .0001). Further, the odds of having pain were 2-3.5 times higher in the highest sex-specific MSAS quartile relative to the lowest MSAS quartile, after adjusting for age, sex, BMI, and pain schema (P < .03). The MSAS provides a psychometrically comprehensive, brief, and promising tool for measuring the core-dimensions of MSS. PERSPECTIVE: Multiple multisensory sensitivity (MSS) tools are used, but without exploration of their underlying domains. We found several measures lacking core MSS domains, thus we modified an existing scale to encompass 5 core MSS domains: light, smell, sound, tactile, and internal bodily sensations using only 12 items, with good psychometric properties.
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Affiliation(s)
- Dan Wang
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Sabrina Casares
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Karen Eilers
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Shannon Hitchcock
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Ryan Iverson
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Ethan Lahn
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Megan Loux
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Colton Schnetzer
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Laura A Frey-Law
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa.
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9
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Cortical thickness, gyrification and sulcal depth in trigeminal neuralgia. Sci Rep 2021; 11:16322. [PMID: 34381144 PMCID: PMC8357824 DOI: 10.1038/s41598-021-95811-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/31/2021] [Indexed: 01/03/2023] Open
Abstract
Neuroimaging studies have documented brain structural alterations induced by chronic pain, particularly in gray matter volume. However, the effects of trigeminal neuralgia (TN), a severe paroxysmal pain disorder, on cortical morphology are not yet known. In this study, we recruited 30 TN patients and 30 age-, and gender-matched healthy controls (HCs). Using Computational Anatomy Toolbox (CAT12), we calculated and compared group differences in cortical thickness, gyrification, and sulcal depth with two-sample t tests (p < 0.05, multiple comparison corrected). Relationships between altered cortical characteristics and pain intensity were investigated with correlation analysis. Compared to HCs, TN patients exhibited significantly decreased cortical thickness in the left inferior frontal, and left medial orbitofrontal cortex; decreased gyrification in the left superior frontal cortex; and decreased sulcal depth in the bilateral superior frontal (extending to anterior cingulate) cortex. In addition, we found significantly negative correlations between the mean cortical thickness in left medial orbitofrontal cortex and pain intensity, and between the mean gyrification in left superior frontal cortex and pain intensity. Chronic pain may be associated with abnormal cortical thickness, gyrification and sulcal depth in trigeminal neuralgia. These morphological changes might contribute to understand the underlying neurobiological mechanism of trigeminal neuralgia.
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10
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Zhang S, Zhornitsky S, Wang W, Le TM, Dhingra I, Chen Y, Li CR. Resting state hypothalamic and dorsomedial prefrontal cortical connectivity of the periaqueductal gray in cocaine addiction. Addict Biol 2021; 26:e12989. [PMID: 33300238 DOI: 10.1111/adb.12989] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/16/2020] [Accepted: 10/31/2020] [Indexed: 12/14/2022]
Abstract
Cocaine-dependent (CD) individuals demonstrate significant anxiety and dysphoria during withdrawal, a negative emotional state that may perpetuate drug seeking and consumption. An extensive body of work has focused on characterizing reward circuit dysfunction, but relatively little is known about the pain circuit during cocaine withdrawal. In an earlier study, we highlighted how cue-elicited functional connectivity between the periaqueductal gray (PAG), a subcortical hub of the pain circuit, and ventromedial prefrontal cortex supports tonic craving in recently abstinent CD. The functional organization of the brain can be characterized by intrinsic connectivities, and it is highly likely that the resting state functional connectivity (rsFC) of the PAG may also be altered in association with cocaine use variables. Here, we examined this issue in 52 CD and 52 healthy control (HC) participants. Imaging data were processed with published routines, and the findings were evaluated with a corrected threshold. In a covariance analysis, CD as compared with HC showed higher PAG rsFC with the hypothalamus, dorsomedial prefrontal, and inferior parietal cortices. Further, these connectivities were correlated negatively with tonic cocaine craving and recent cocaine use, respectively. Higher hypothalamic and frontoparietal rsFC with the PAG may reflect a compensatory process to regulate craving and compulsive drug use. The findings provide additional evidence in humans implicating the PAG circuit and may help research of the role of negative reinforcement in sustaining habitual drug use in cocaine addiction.
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Affiliation(s)
- Sheng Zhang
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Simon Zhornitsky
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Wuyi Wang
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Thang M. Le
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Isha Dhingra
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Yu Chen
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Chiang‐shan R. Li
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
- Department of Neuroscience Yale University School of Medicine New Haven CT USA
- Interdepartmental Neuroscience Program Yale University New Haven CT USA
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11
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Wade-Bohleber LM, Haugg A, Huber S, Ernst J, Grimm S, Recher D, Richter A, Seifritz E, Boeker H, Northoff G. Anticipating control over aversive stimuli is mediated by the medial prefrontal cortex: An fMRI study with healthy adults. Hum Brain Mapp 2021; 42:4327-4335. [PMID: 34105855 PMCID: PMC8356988 DOI: 10.1002/hbm.25549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 01/21/2023] Open
Abstract
The anticipation of control over aversive events in life is relevant for our mental health. Insights on the underlying neural mechanisms remain limited. We developed a new functional magnetic resonance imaging (fMRI) task that uses auditory stimuli to explore the neural correlates of (1) the anticipation of control over aversion and (2) the processing of aversion. In a sample of 25 healthy adults, we observed increased neural activation in the medial prefrontal cortex (ventromedial prefrontal cortex and rostral anterior cingulate cortex), other brain areas relevant for reward anticipation (ventral striatum, brainstem [ventral tegmental area], midcingulate cortex), and the posterior cingulate cortex when they anticipated control over aversion compared with anticipating no control (1). The processing of aversive sounds compared to neutral sounds (2) was associated with increased neural activation in the bilateral posterior insula. Our findings provide evidence for the important role of medial prefrontal regions in control anticipation and highlight the relevance of conceiving the neural mechanisms involved within a reward-based framework.
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Affiliation(s)
- Laura Maria Wade-Bohleber
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland.,Psychological Institute, Zurich University of Applied Sciences, Zurich, Switzerland
| | - Amelie Haugg
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Sabrina Huber
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Jutta Ernst
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Simone Grimm
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland.,Medical School Berlin, Berlin, Germany.,Department of Psychiatry, Charité, Campus Benjamin Franklin, Berlin, Germany
| | - Dominique Recher
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Andre Richter
- Department of Consultation-Liaison-Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Heinz Boeker
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland
| | - Georg Northoff
- Department of Psychiatry, University of Ottawa, Institute of Mental Health Research, Ottawa, Ontario, Canada
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12
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The neural mechanisms of immediate and follow-up of the treatment effect of hypnosis on smoking craving. Brain Imaging Behav 2021; 14:1487-1497. [PMID: 31028603 DOI: 10.1007/s11682-019-00072-0] [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] [Indexed: 02/02/2023]
Abstract
Hypnosis has a therapeutic effect on substance dependence. However, its neural basis remains unclear, which impedes its further clinical applications. This study investigated the mechanisms of smoking treatment based on hypnosis from two perspectives: immediate and follow-up effects. Twenty-four smokers screened from 132 volunteers underwent hypnosis suggestion and performed a smoking-related cue task twice during functional magnetic resonance imaging (fMRI) scanning (in normal and hypnotic states). The number of cigarettes smoked per day was recorded at follow-up visits. The smokers reported decreased craving after hypnosis. The activations in the right dorsal lateral prefrontal cortex (rDLPFC), the left insula and the right middle frontal gyrus (rMFG), and the functional connectivity between the rDLPFC and the left insula were increased in the hypnotic state. The reduced craving was related to the DLPFC-insula network, which reflected the immediate mechanism of hypnosis on smoking. The number of cigarette use at the 1-week and 1 month follow-up was correlated with the rMFG activation which reflecting hypnotic depth, suggesting the follow-up effect of hypnosis on smoking depended on the trait of smokers. We identified two different mechanisms of hypnosis effect on smoking, which have important implications for design and optimization of hypnotic treatments on mental disorders.
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13
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Wang LL, Wang HB, Fu FH, Yu LC. Role of calcitonin gene-related peptide in pain regulation in the parabrachial nucleus of naive rats and rats with neuropathic pain. Toxicol Appl Pharmacol 2021; 414:115428. [PMID: 33524449 DOI: 10.1016/j.taap.2021.115428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 01/14/2023]
Abstract
Researches have shown that calcitonin gene-related peptide (CGRP) plays a pivotal role in pain modulation. Nociceptive information from the periphery is relayed from parabrachial nucleus (PBN) to brain regions implicated involved in pain. This study investigated the effects and mechanisms of CGRP and CGRP receptors in pain regulation in the PBN of naive and neuropathic pain rats. Chronic sciatic nerve ligation was used to model neuropathic pain, CGRP and CGRP 8-37 were injected into the PBN of the rats, and calcitonin receptor-like receptor (CLR), a main structure of CGRP receptor, was knocked down by lentivirus-coated CLR siRNA. The hot plate test (HPT) and the Randall Selitto Test (RST) was used to determine the latency of the rat hindpaw response. The expression of CLR was detected with RT-PCR and western blotting. We found that intra-PBN injecting of CGRP induced an obvious anti-nociceptive effect in naive and neuropathic pain rats in a dose-dependent manner, the CGRP-induced antinociception was significantly reduced after injection of CGRP 8-37, Moreover, the mRNA and protein levels of CLR, in PBN decreased significantly and the antinociception CGRP-induced was also significantly lower in neuropathic pain rats than that in naive rats. Knockdown CLR in PBN decreased the expression of CLR and the antinociception induced by CGRP was observably decreased. Our results demonstrate that CGRP induced antinociception in PBN of naive or neuropathic pain rats, CGRP receptor mediates this effect. Neuropathic pain induced decreases in the expression of CGRP receptor, as well as in CGRP-induced antinociception in PBN.
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Affiliation(s)
- Lin-Lin Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Hong-Bo Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China
| | - Feng-Hua Fu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China.
| | - Long-Chuan Yu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China; Neurobiology Laboratory, School of Life Sciences, Peking University, Beijing 100871, PR China.
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14
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Wang D, Merkle SL, Lee JE, Sluka KA, Rakel B, Graven-Nielsen T, Frey-Law LA. Multisensory Sensitivity is Related to Deep-Tissue but Not Cutaneous Pain Sensitivity in Healthy Individuals. J Pain Res 2020; 13:2493-2508. [PMID: 33116791 PMCID: PMC7548328 DOI: 10.2147/jpr.s267972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/29/2020] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Some individuals with chronic pain find daily life sensations (eg, noise, light, or touch) aversive. This amplification of multisensory sensations has been associated with centrally mediated plasticity; for example, greater multisensory sensitivity (MSS) occurs in patients with fibromyalgia than rheumatoid arthritis. However, whether MSS preferentially relates to pain measures which reflect central influences (eg, dynamic quantitative sensory testing (QST) or referred pain), or whether the MSS-pain relationship requires priming from chronic pain, is unknown. Thus, this cross-sectional study investigated the relationships between MSS assessed in a pain-free state and evoked pain sensitivity. METHODS Experimental intramuscular infusion pain and multiple static and dynamic QST were assessed in 465 healthy, pain-free adults: pain thresholds using pressure (PPTs) and heat (HPTs), temporal summation of pain (TSP) using pressure, heat or punctate stimuli, and conditioned pain modulation (CPM) using pressure or heat test stimuli. MSS was assessed using 7 items from Barsky's Somatosensory Amplification Scale. Differences in pain and QST between sex-specific MSS quartiles were assessed, adjusting for multiple comparisons. All participants completed at least one intramuscular infusion condition, but not all were asked to complete each QST (n=166-465). RESULTS Both static and dynamic QST differed between highest and lowest MSS quartiles using pressure stimuli: lower PPTs (adjusted-p<0.01); increased pressure TSP (adjusted-p=0.02); lower pressure CPM (adjusted-p=0.01). However, none of the heat or punctate QST measures (HPTs, TSP, or CPM) differed between MSS quartiles (adjusted-p>0.05). Odds of experiencing TSP or referred pain was not greater, whereas CPM was 8-fold less likely, in those with highest MSS. CONCLUSION Normal variation in non-noxious MSS is related to both static and dynamic pain sensitivity, without sensitization associated with chronic pain, but is dependent on the QST stimulus. Thus, common influences on MSS and pain sensitivity may involve central mechanisms but are likely more complex than previously recognized.
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Affiliation(s)
- Dan Wang
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Shannon L Merkle
- United States Army Research Institute of Environmental Medicine (USARIEM), Natick, MA, USA
| | - Jennifer E Lee
- Department of Psychology, Mount Mercy University, Cedar Rapids, IA, USA
- College of Nursing, University of Iowa, Iowa City, IA, USA
| | - Kathleen A Sluka
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Barbara Rakel
- College of Nursing, University of Iowa, Iowa City, IA, USA
| | - Thomas Graven-Nielsen
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Aalborg, Denmark
| | - Laura A Frey-Law
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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15
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Tang Y, Wang M, Zheng T, Yuan F, Yang H, Han F, Chen G. Grey matter volume alterations in trigeminal neuralgia: A systematic review and meta-analysis of voxel-based morphometry studies. Prog Neuropsychopharmacol Biol Psychiatry 2020; 98:109821. [PMID: 31756417 DOI: 10.1016/j.pnpbp.2019.109821] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/29/2019] [Accepted: 11/12/2019] [Indexed: 02/08/2023]
Abstract
In recent decades, a growing number of structural neuroimaging studies of grey matter (GM) in trigeminal neuralgia (TN) have reported inconsistent alterations. We carried out a systematic review and meta-analysis to identify consistent and replicable GM volume abnormalities using effect-size signed differential mapping (ES-SDM). Furthermore, we conducted a meta-regression to explore the potential effects of clinical characteristics on GM volume alterations in patients with TN. A total of 13 studies with 15 datasets, representing 407 TN patients and 376 healthy individuals, were included in the present study. The results revealed that TN patients had GM volume abnormalities mainly in the basal ganglia, including the putamen, nucleus accumbens (NAc), caudate nucleus and amygdala, as well as the cingulate cortex (CC), thalamus, insula and superior temporal gyrus (STG). The meta-regression analysis showed that verbal rating scale (VRS) scores were negatively correlated with decreased GM volume in the left striatum and that illness duration was negatively correlated with decreased GM volume in the left STG and left insula. These results provide a thorough profile of GM volume alterations in TN patients and constitute robust evidence that aberrant GM volumes in the brain regions regulating and moderating sensory-motor and affective processing may play an important role in the pathophysiology of TN.
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Affiliation(s)
- Yu Tang
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Maohua Wang
- Department of Anesthesiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Ting Zheng
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Fengying Yuan
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Han Yang
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Fugang Han
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Guangxiang Chen
- Department of Radiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China.
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16
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Heany SJ, Terburg D, Stein DJ, van Honk J, Bos PA. Neural responses in the pain matrix when observing pain of others are unaffected by testosterone administration in women. Exp Brain Res 2020; 238:751-759. [PMID: 32086551 PMCID: PMC7080706 DOI: 10.1007/s00221-020-05749-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 02/08/2020] [Indexed: 12/21/2022]
Abstract
There is evidence of testosterone having deteriorating effects on cognitive and affective empathic behaviour in men and women under varying conditions. However, whether testosterone influences empathy for pain has not yet been investigated. Therefore, we tested neural responses to witnessing others in pain in a within-subject placebo-controlled testosterone administration study in healthy young women. Using functional magnetic resonance imaging, we provide affirming evidence that an empathy-inducing paradigm causes changes in the activity throughout the pain circuitry, including the bilateral insula and anterior cingulate cortex. Administration of testosterone, however, did not influence these activation patterns in the pain matrix. Testosterone has thus downregulating effects on aspects of empathic behaviour, but based on these data does not seem to influence neural responses during empathy for others' pain. This finding gives more insight into the role of testosterone in human empathy.
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Affiliation(s)
- Sarah J. Heany
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - David Terburg
- Department of Experimental Psychology, Utrecht University, Utrecht, The Netherlands
| | - Dan J. Stein
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Jack van Honk
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
- Department of Experimental Psychology, Utrecht University, Utrecht, The Netherlands
- Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Peter A. Bos
- Institute of Education and Child Studies, Leiden University, Leiden, The Netherlands
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17
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Riečanský I, Lamm C. The Role of Sensorimotor Processes in Pain Empathy. Brain Topogr 2019; 32:965-976. [PMID: 31705422 PMCID: PMC6882755 DOI: 10.1007/s10548-019-00738-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/18/2019] [Indexed: 01/10/2023]
Abstract
Pain is a salient, aversive sensation which motivates avoidance, but also has a strong social signaling function. Numerous studies have shown that regions of the nervous system active in association with first-hand pain are also active in response to the pain of others. When witnessing somatic pain, such as seeing bodies in painful situations, significant activations occur not only in areas related to the processing of negative emotions, but also in neuronal structures engaged in somatosensation and the control of skeletal muscles. These empathy-related sensorimotor activations are selectively reviewed in this article, with a focus on studies using electrophysiological methods and paradigms investigating responses to somatic pain. Convergent evidence from these studies shows that these activations (1) occur at multiple levels of the nervous system, from the spinal cord up to the cerebral cortex, (2) are best conceptualized as activations of a defensive system, in line with the role of pain to protect body from injury, and (3) contribute to establishing a matching of psychological states between the sufferer and the observer, which ultimately supports empathic understanding and motivate prosocial action. Future research should thus focus on how these sensorimotor responses are related to higher-order empathic responses, including affective sharing and emotion regulation, and how this motivates approach-related prosocial behaviors aimed at alleviating the pain and suffering of others.
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Affiliation(s)
- Igor Riečanský
- Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010, Vienna, Austria
- Department of Behavioural Neuroscience, Centre of Experimental Medicine, Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, Sienkiewiczova 1, 813 71, Bratislava, Slovakia
| | - Claus Lamm
- Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010, Vienna, Austria.
- Cognitive Neuroscience, International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy.
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18
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The rough sound of salience enhances aversion through neural synchronisation. Nat Commun 2019; 10:3671. [PMID: 31413319 PMCID: PMC6694125 DOI: 10.1038/s41467-019-11626-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 07/26/2019] [Indexed: 11/09/2022] Open
Abstract
Being able to produce sounds that capture attention and elicit rapid reactions is the prime goal of communication. One strategy, exploited by alarm signals, consists in emitting fast but perceptible amplitude modulations in the roughness range (30-150 Hz). Here, we investigate the perceptual and neural mechanisms underlying aversion to such temporally salient sounds. By measuring subjective aversion to repetitive acoustic transients, we identify a nonlinear pattern of aversion restricted to the roughness range. Using human intracranial recordings, we show that rough sounds do not merely affect local auditory processes but instead synchronise large-scale, supramodal, salience-related networks in a steady-state, sustained manner. Rough sounds synchronise activity throughout superior temporal regions, subcortical and cortical limbic areas, and the frontal cortex, a network classically involved in aversion processing. This pattern correlates with subjective aversion in all these regions, consistent with the hypothesis that roughness enhances auditory aversion through spreading of neural synchronisation.
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19
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Delineating conditions and subtypes in chronic pain using neuroimaging. Pain Rep 2019; 4:e768. [PMID: 31579859 PMCID: PMC6727994 DOI: 10.1097/pr9.0000000000000768] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/22/2019] [Accepted: 05/25/2019] [Indexed: 12/19/2022] Open
Abstract
Differentiating subtypes of chronic pain still remains a challenge—both from a subjective and objective point of view. Personalized medicine is the current goal of modern medical care and is limited by the subjective nature of patient self-reporting of symptoms and behavioral evaluation. Physiology-focused techniques such as genome and epigenetic analyses inform the delineation of pain groups; however, except under rare circumstances, they have diluted effects that again, share a common reliance on behavioral evaluation. The application of structural neuroimaging towards distinguishing pain subtypes is a growing field and may inform pain-group classification through the analysis of brain regions showing hypertrophic and atrophic changes in the presence of pain. Analytical techniques such as machine-learning classifiers have the capacity to process large volumes of data and delineate diagnostically relevant information from neuroimaging analysis. The issue of defining a “brain type” is an emerging field aimed at interpreting observed brain changes and delineating their clinical identity/significance. In this review, 2 chronic pain conditions (migraine and irritable bowel syndrome) with similar clinical phenotypes are compared in terms of their structural neuroimaging findings. Independent investigations are compared with findings from application of machine-learning algorithms. Findings are discussed in terms of differentiating patient subgroups using neuroimaging data in patients with chronic pain and how they may be applied towards defining a personalized pain signature that helps segregate patient subgroups (eg, migraine with and without aura, with or without nausea; irritable bowel syndrome vs other functional gastrointestinal disorders).
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20
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Altered anticipation and processing of aversive interoceptive experience among women remitted from bulimia nervosa. Neuropsychopharmacology 2019; 44:1265-1273. [PMID: 30840983 PMCID: PMC6785154 DOI: 10.1038/s41386-019-0361-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 02/10/2019] [Accepted: 02/12/2019] [Indexed: 11/08/2022]
Abstract
Bulimia nervosa (BN) is characterized by dysregulated intake of food, which may indicate homeostatic imbalance. Critically important for homeostatic regulation is interoception, or the sensing and processing of body-relevant information. A well-documented link between avoidance of unpleasant body sensations and BN symptoms suggests that aversive interoceptive experiences may be particularly relevant to BN pathophysiology. This study examined whether individuals with a history of BN show aberrant neural processing of aversive interoceptive stimuli. Using a cued inspiratory breathing load paradigm, we compared women remitted from BN (RBN; n = 24; to reduce the confounding effects of active bulimic symptoms) and control women (CW; n = 25). During breathing load anticipation, the RBN group, relative to CW, showed increased activation in mid-insula, superior frontal gyrus, putamen, dorsal anterior cingulate, posterior cingulate, and amygdala. However, over the course of the aversive experience, neural activation in RBN relative to CW showed an aberrant decline in most of these regions. Exploratory analyses indicated that greater activation during breathing load anticipation was associated with past bulimic symptom severity and the duration of symptom remission. An exaggerated anticipatory response and an abnormally decreasing response during aversive homeostatic perturbations may promote hallmark bulimic behaviors-binge eating, dietary restriction, and purging. Our findings support a role for homeostatic instability in BN, and these altered patterns of brain activation may serve as novel targets for pharmacological, neuromodulatory, and behavioral interventions.
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21
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Behavioural and metabolomic changes from chronic dietary exposure to low-level deoxynivalenol reveal impact on mouse well-being. Arch Toxicol 2019; 93:2087-2102. [PMID: 31065730 DOI: 10.1007/s00204-019-02470-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/02/2019] [Indexed: 12/16/2022]
Abstract
The mycotoxin deoxynivalenol (DON) has a high global prevalence in grain-based products. Biomarkers of exposure are detectable in most humans and farm animals. Considering the acute emetic and chronic anorexigenic toxicity of DON, maximum levels for food and feed have been implemented by food authorities. The tolerable daily intake (TDI) is 1 µg/kg body weight (bw)/day for the sum of DON and its main derivatives, which was based on the no-observed adverse-effect level (NOAEL) of 100 µg DON/kg bw/day for anorexic effects in rodents. Chronic exposure to a low-DON dose can, however, also cause inflammation and imbalanced neurotransmitter levels. In the present study, we therefore investigated the impact of a 2-week exposure at the NOAEL in mice by performing behavioural experiments, monitoring brain activation by c-Fos expression, and analysing changes in the metabolomes of brain and serum. We found that DON affected neuronal activity and innate behaviour in both male and female mice. Metabolite profiles were differentiable between control and treated mice. The behavioural changes evidenced at NOAEL reduce the safety margin to the established TDI and may be indicative of a risk for human health.
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22
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Abstract
During real-life situations, multiple factors interact dynamically to determine threat level. In the current fMRI study involving healthy adult human volunteers, we investigated interactions between proximity, direction (approach vs. retreat), and speed during a dynamic threat-of-shock paradigm. As a measure of threat-evoked physiological arousal, skin conductance responses were recorded during fMRI scanning. Some brain regions tracked individual threat-related factors, and others were also sensitive to combinations of these variables. In particular, signals in the anterior insula tracked the interaction between proximity and direction where approach versus retreat responses were stronger when threat was closer compared with farther. A parallel proximity-by-direction interaction was also observed in physiological skin conductance responses. In the right amygdala, we observed a proximity by direction interaction, but intriguingly in the opposite direction as the anterior insula; retreat versus approach responses were stronger when threat was closer compared with farther. In the right bed nucleus of the stria terminalis, we observed an effect of threat proximity, whereas in the right periaqueductal gray/midbrain we observed an effect of threat direction and a proximity by direction by speed interaction (the latter was detected in exploratory analyses but not in a voxelwise fashion). Together, our study refines our understanding of the brain mechanisms involved during aversive anticipation in the human brain. Importantly, it emphasizes that threat processing should be understood in a manner that is both context-sensitive and dynamic.
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Affiliation(s)
- Christian Meyer
- Department of Psychology, University of Maryland, College Park, MD, USA
| | - Srikanth Padmala
- Department of Psychology, University of Maryland, College Park, MD, USA
- Neuroscience and Cognitive Sciences program, University of Maryland, College Park, MD, USA
| | - Luiz Pessoa
- Department of Psychology, University of Maryland, College Park, MD, USA
- Neuroscience and Cognitive Sciences program, University of Maryland, College Park, MD, USA
- Maryland Neuroimaging Center, University of Maryland, College Park, MD, USA
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23
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Multivariate pattern classification of brain white matter connectivity predicts classic trigeminal neuralgia. Pain 2019; 159:2076-2087. [PMID: 29905649 DOI: 10.1097/j.pain.0000000000001312] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Trigeminal neuralgia (TN) is a severe form of chronic facial neuropathic pain. Increasing interest in the neuroimaging of pain has highlighted changes in the root entry zone in TN, but also group-level central nervous system gray and white matter (WM) abnormalities. Group differences in neuroimaging data are frequently evaluated with univariate statistics; however, this approach is limited because it is based on single, or clusters of, voxels. By contrast, multivariate pattern analyses consider all the model's neuroanatomical features to capture a specific distributed spatial pattern. This approach has potential use as a prediction tool at the individual level. We hypothesized that a multivariate pattern classification method can distinguish specific patterns of abnormal WM connectivity of classic TN from healthy controls (HCs). Diffusion-weighted scans in 23 right-sided TN and matched controls were processed to extract whole-brain interregional streamlines. We used a linear support vector machine algorithm to differentiate interregional normalized streamline count between TN and HC. This algorithm successfully differentiated between TN and HC with an accuracy of 88%. The structural pattern emphasized WM connectivity of regions that subserve sensory, affective, and cognitive dimensions of pain, including the insula, precuneus, inferior and superior parietal lobules, and inferior and medial orbital frontal gyri. Normalized streamline counts were associated with longer pain duration and WM metric abnormality between the connections. This study demonstrates that machine-learning algorithms can detect characteristic patterns of structural alterations in TN and highlights the role of structural brain imaging for identification of neuroanatomical features associated with neuropathic pain disorders.
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24
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Abstract
Nociceptive signals conveyed to the dorsal horn of the spinal cord by primary nociceptors are subject to extensive modulation by local neurons and by supraspinal descending pathways to the spinal cord before being relayed to higher brain centers. Descending modulatory pathways to the spinal cord comprise, among others, noradrenergic, serotonergic, γ-aminobutyric acid (GABA)ergic, and dopaminergic fibers. The contributions of noradrenaline, serotonin, and GABA to pain modulation have been extensively investigated. In contrast, the contributions of dopamine to pain modulation remain poorly understood. The focus of this review is to summarize the current knowledge of the contributions of dopamine to pain modulation. Hypothalamic A11 dopaminergic neurons project to all levels of the spinal cord and provide the main source of spinal dopamine. Dopamine receptors are expressed in primary nociceptors as well as in spinal neurons located in different laminae in the dorsal horn of the spinal cord, suggesting that dopamine can modulate pain signals by acting at both presynaptic and postsynaptic targets. Here, I will review the literature on the effects of dopamine and dopamine receptor agonists/antagonists on the excitability of primary nociceptors, the effects of dopamine on the synaptic transmission between primary nociceptors and dorsal horn neurons, and the effects of dopamine on pain in rodents. Published data support both anti-nociceptive effects of dopamine mediated by D2-like receptors and pro-nociceptive effects mediated by D1-like receptors.
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Affiliation(s)
- Michelino Puopolo
- Department of Anesthesiology, Stony Brook Medicine, Stony Brook, NY, USA
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Li X, Chen L, Ma R, Wang H, Wan L, Wang Y, Bu J, Hong W, Lv W, Vollstädt-Klein S, Yang Y, Zhang X. The top-down regulation from the prefrontal cortex to insula via hypnotic aversion suggestions reduces smoking craving. Hum Brain Mapp 2018; 40:1718-1728. [PMID: 30467911 DOI: 10.1002/hbm.24483] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 10/21/2018] [Accepted: 10/25/2018] [Indexed: 12/20/2022] Open
Abstract
Hypnosis has been shown to have treatment effects on nicotine addiction. However, the neural basis of these effects is poorly understood. This preliminary study investigated the neural mechanisms of hypnosis-based treatment on cigarette smoking, specifically, whether the hypnosis involves a top-down or bottom-up mechanism. Two groups of 45 smokers underwent a smoking aversion suggestion and viewed smoking-related pictures and neutral pictures. One group underwent functional magnetic resonance imaging scanning twice (control and hypnotic states), whereas the other group underwent two electroencephalograph sessions. Our study found that self-reported smoking craving decreased in both groups following hypnosis. Smoking cue-elicited activations in the right dorsal lateral prefrontal cortex (rDLPFC) and left insula (lI) and the functional connectivity between the rDLPFC and lI were increased in the hypnotic state compared with the control state. The delta band source waveforms indicated the activation from 390 to 862 ms at the rDLPFC and from 490 to 900 ms at the lI was significantly different between the smoking and neutral conditions in the hypnotic state, suggesting the activation in the rDLPFC preceded that in the lI. These results suggest that the decreased smoking craving via hypnotic aversion suggestions may arise from the top-down regulation of the rDLPFC to the lI. Our findings provide novel neurobiological evidence for understanding the therapeutic effects of hypnosis on nicotine addiction, and the prefrontal-insula circuit may serve as an imaging biomarker to monitor the treatment efficacy noninvasively.
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Affiliation(s)
- Xiaoming Li
- Department of Medical Psychology, Chaohu Clinical Medical College, Anhui Medical University, Hefei, Anhui, China.,Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Lijun Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China.,CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Ru Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Haibao Wang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Li Wan
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Ying Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Junjie Bu
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Wei Hong
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Wanwan Lv
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Sabine Vollstädt-Klein
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Yihong Yang
- Neuroimaging Research Branch, Intramural Research Program, National Institute on Drug Abuse, NIH, Baltimore, Maryland, USA
| | - Xiaochu Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China.,Academy of Psychology and Behavior, Tianjin Normal University, Tianjin, China.,Center for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui, China.,Anhui Mental Research Center on Alcohol Addiction, Anhui Mental Health Center, Hefei, China
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26
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Wilson-Mendenhall CD, Henriques A, Barsalou LW, Barrett LF. Primary Interoceptive Cortex Activity during Simulated Experiences of the Body. J Cogn Neurosci 2018; 31:221-235. [PMID: 30277431 DOI: 10.1162/jocn_a_01346] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Studies of the classic exteroceptive sensory systems (e.g., vision, touch) consistently demonstrate that vividly imagining a sensory experience of the world-simulating it-is associated with increased activity in the corresponding primary sensory cortex. We hypothesized, analogously, that simulating internal bodily sensations would be associated with increased neural activity in primary interoceptive cortex. An immersive, language-based mental imagery paradigm was used to test this hypothesis (e.g., imagine your heart pounding during a roller coaster ride, your face drenched in sweat during a workout). During two neuroimaging experiments, participants listened to vividly described situations and imagined "being there" in each scenario. In Study 1, we observed significantly heightened activity in primary interoceptive cortex (of dorsal posterior insula) during imagined experiences involving vivid internal sensations. This effect was specific to interoceptive simulation: It was not observed during a separate affect focus condition in Study 1 nor during an independent Study 2 that did not involve detailed simulation of internal sensations (instead involving simulation of other sensory experiences). These findings underscore the large-scale predictive architecture of the brain and reveal that words can be powerful drivers of bodily experiences.
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27
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Bagdas D, Meade JA, Alkhlaif Y, Muldoon PP, Carroll FI, Damaj MI. Effect of nicotine and alpha-7 nicotinic modulators on visceral pain-induced conditioned place aversion in mice. Eur J Pain 2018; 22:10.1002/ejp.1231. [PMID: 29633429 PMCID: PMC6179949 DOI: 10.1002/ejp.1231] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Preclinical assays of affective and sensorial aspects of nociception play a key role in research on both the neurobiology of pain and the development of novel analgesics. Therefore, we investigated the effects of nicotine and alpha-7 nicotinic acetylcholine receptor (nAChR) modulators in the negative affective and sensory components of visceral pain in mice. METHODS AND RESULTS Intraperitoneal acetic acid (AA) administration resulted in a robust stretching behaviour and conditioned place aversion (CPA) in mice. We observed a dose-dependent reduction in AA-induced stretching and CPA by the nonselective nAChRs agonist nicotine. Mecamylamine, a nonselective nAChRs agonist, was able to block its effects; however, hexamethonium, a peripherally restricted nonselective nicotinic antagonist, was able to block nicotine's effect on stretching behaviour but not on CPA. In addition, systemic administration of α7 nAChR full agonists PHA543613 and PNU282987 was failed to block stretching and CPA behaviour induced by AA. However, the α7 nAChR-positive allosteric modulator PNU120596 blocked AA-induced CPA in a dose-dependent manner without reducing stretching behaviours. CONCLUSIONS Our data revealed that while nonselective nAChR activation induces antinociceptive properties on the sensorial and affective signs of visceral pain in mice, α7 nAChRS activation has no effect on these responses. In addition, nonselective nAChR activation-induced antinociceptive effect on stretching behaviour was mediated by central and peripheral mechanisms. However, the effect of nonselective nAChR activation on CPA was mediated centrally. Furthermore, our data suggest a pivotal role of allosteric modulation of α7 nAChRS in the negative affective, but not sensory, component of visceral pain. SIGNIFICANCE The present results suggest that allosteric modulation of α7 nAChR may provide new strategies in affective aspects of nociception.
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Affiliation(s)
- Deniz Bagdas
- Department of Pharmacology and Toxicology, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0613
- The Center for the Study for Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
| | - Julie A. Meade
- Department of Pharmacology and Toxicology, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0613
| | - Yasmin Alkhlaif
- Department of Pharmacology and Toxicology, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0613
| | - Pretal P. Muldoon
- Department of Pharmacology and Toxicology, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0613
| | - F. Ivy Carroll
- Center for Drug Discovery, Research Triangle Institute, PO Box 12194, Research Triangle Park, NC 27709-2194
| | - M. Imad Damaj
- Department of Pharmacology and Toxicology, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0613
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28
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Nostro AD, Müller VI, Varikuti DP, Pläschke RN, Hoffstaedter F, Langner R, Patil KR, Eickhoff SB. Predicting personality from network-based resting-state functional connectivity. Brain Struct Funct 2018; 223:2699-2719. [PMID: 29572625 DOI: 10.1007/s00429-018-1651-z] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 03/12/2018] [Indexed: 12/20/2022]
Abstract
Personality is associated with variation in all kinds of mental faculties, including affective, social, executive, and memory functioning. The intrinsic dynamics of neural networks underlying these mental functions are reflected in their functional connectivity at rest (RSFC). We, therefore, aimed to probe whether connectivity in functional networks allows predicting individual scores of the five-factor personality model and potential gender differences thereof. We assessed nine meta-analytically derived functional networks, representing social, affective, executive, and mnemonic systems. RSFC of all networks was computed in a sample of 210 males and 210 well-matched females and in a replication sample of 155 males and 155 females. Personality scores were predicted using relevance vector machine in both samples. Cross-validation prediction accuracy was defined as the correlation between true and predicted scores. RSFC within networks representing social, affective, mnemonic, and executive systems significantly predicted self-reported levels of Extraversion, Neuroticism, Agreeableness, and Openness. RSFC patterns of most networks, however, predicted personality traits only either in males or in females. Personality traits can be predicted by patterns of RSFC in specific functional brain networks, providing new insights into the neurobiology of personality. However, as most associations were gender-specific, RSFC-personality relations should not be considered independently of gender.
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Affiliation(s)
- Alessandra D Nostro
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany. .,Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany. .,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany.
| | - Veronika I Müller
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Deepthi P Varikuti
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Rachel N Pläschke
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Felix Hoffstaedter
- Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Robert Langner
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Kaustubh R Patil
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
| | - Simon B Eickhoff
- Institute of Systems Neuroscience, Medical Faculty, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine University Düsseldorf, Universitätstraße 1, 40225, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-1,7), Research Centre Jülich, Wilhelm-Johnen-Straße, 52425, Jülich, Germany
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29
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Berner LA, Simmons AN, Wierenga CE, Bischoff-Grethe A, Paulus MP, Bailer U, Ely AV, Kaye WH. Altered interoceptive activation before, during, and after aversive breathing load in women remitted from anorexia nervosa. Psychol Med 2018; 48:142-154. [PMID: 28714434 PMCID: PMC5990016 DOI: 10.1017/s0033291717001635] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND The neural mechanisms of anorexia nervosa (AN), a severe and chronic psychiatric illness, are still poorly understood. Altered body state processing, or interoception, has been documented in AN, and disturbances in aversive interoception may contribute to distorted body perception, extreme dietary restriction, and anxiety. As prior data implicate a potential mismatch between interoceptive expectation and experience in AN, we examined whether AN is associated with altered brain activation before, during, and after an unpleasant interoceptive state change. METHODS Adult women remitted from AN (RAN; n = 17) and healthy control women (CW; n = 25) underwent functional magnetic resonance imaging during an inspiratory breathing load paradigm. RESULTS During stimulus anticipation, the RAN group, relative to CW, showed reduced activation in right mid-insula. In contrast, during the aversive breathing load, the RAN group showed increased activation compared with CW in striatum and cingulate and prefrontal cortices (PFC). The RAN group also showed increased activation in PFC, bilateral insula, striatum, and amygdala after stimulus offset. Time course analyses indicated that RAN responses in interoceptive processing regions during breathing load increased more steeply than those of CW. Exploratory analyses revealed that hyperactivation after breathing load was associated with markers of past AN severity. CONCLUSIONS Anticipatory deactivation with a subsequent exaggerated brain response during and after an aversive body state may contribute to difficulty predicting and adapting to internal state fluctuation. Because eating changes our interoceptive state, restriction may be one method of avoiding aversive, unpredictable internal change in AN.
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Affiliation(s)
- Laura A. Berner
- Department of Psychiatry, University of California, San Diego, CA
| | - Alan N. Simmons
- Department of Psychiatry, University of California, San Diego, CA
- VA San Diego Healthcare System, San Diego, CA
| | - Christina E. Wierenga
- Department of Psychiatry, University of California, San Diego, CA
- VA San Diego Healthcare System, San Diego, CA
| | | | | | - Ursula Bailer
- Department of Psychiatry, University of California, San Diego, CA
- Medical University of Vienna, Department of Psychiatry and Psychotherapy, Division of Biological Psychiatry
| | - Alice V. Ely
- Department of Psychiatry, University of California, San Diego, CA
| | - Walter H. Kaye
- Department of Psychiatry, University of California, San Diego, CA
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30
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Yan Z, Pei M, Su Y. Children's Empathy and Their Perception and Evaluation of Facial Pain Expression: An Eye Tracking Study. Front Psychol 2017; 8:2284. [PMID: 29312106 PMCID: PMC5744656 DOI: 10.3389/fpsyg.2017.02284] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/15/2017] [Indexed: 11/17/2022] Open
Abstract
The function of empathic concern to process pain is a product of evolutionary adaptation. Focusing on 5- to 6-year old children, the current study employed eye-tracking in an odd-one-out task (searching for the emotional facial expression among neutral expressions, N = 47) and a pain evaluation task (evaluating the pain intensity of a facial expression, N = 42) to investigate the relationship between children’s empathy and their behavioral and perceptual response to facial pain expression. We found children detected painful expression faster than others (angry, sad, and happy), children high in empathy performed better on searching facial expression of pain, and gave higher evaluation of pain intensity; and rating for pain in painful expressions was best predicted by a self-reported empathy score. As for eye-tracking in pain detection, children fixated on pain more quickly, less frequently and for shorter times. Of facial clues, children fixated on eyes and mouth more quickly, more frequently and for longer times. These results implied that painful facial expression was different from others in a cognitive sense, and children’s empathy might facilitate their search and make them perceive the intensity of observed pain on the higher side.
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Affiliation(s)
- Zhiqiang Yan
- Beijing Key Laboratory of Behavior and Mental Health, School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - Meng Pei
- Beijing Key Laboratory of Behavior and Mental Health, School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - Yanjie Su
- Beijing Key Laboratory of Behavior and Mental Health, School of Psychological and Cognitive Sciences, Peking University, Beijing, China
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31
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Francesconi W, Szücs A, Berton F, Koob GF, Vendruscolo LF, Sanna PP. Opiate dependence induces cell type-specific plasticity of intrinsic membrane properties in the rat juxtacapsular bed nucleus of stria terminalis (jcBNST). Psychopharmacology (Berl) 2017; 234:3485-3498. [PMID: 28986608 PMCID: PMC5993421 DOI: 10.1007/s00213-017-4732-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 09/05/2017] [Indexed: 01/03/2023]
Abstract
RATIONALE Drugs of abuse can alter circuit dynamics by modifying synaptic efficacy and/or the intrinsic membrane properties of neurons. The juxtacapsular subdivision of the bed nucleus of stria terminalis (jcBNST) has unique connectivity that positions it to integrate cortical and amygdala inputs and provide feed-forward inhibition to the central nucleus of the amygdala (CeA), among other regions. In this study, we investigated changes in the synaptic and intrinsic properties of neurons in the rat jcBNST during protracted withdrawal from morphine dependence using a combination of conventional electrophysiological methods and the dynamic clamp technique. RESULTS A history of opiate dependence induced a form of cell type-specific plasticity characterized by reduced inward rectification associated with more depolarized resting membrane potentials and increased membrane resistance. This cell type also showed a lower rheobase when stimulated with direct current (DC) pulses as well as a decreased firing threshold under simulated synaptic bombardment with the dynamic clamp. Morphine dependence also decreased excitatory postsynaptic potential amplification, suggesting the downregulation of the persistent Na+ current (I NaP). CONCLUSION These findings show that a history of morphine dependence leads to persistent cell type-specific plasticity of the passive membrane properties of a jcBNST neuronal population, leading to an overall increased excitability of such neurons. By altering the activity of extended amygdala circuits where they are embedded, changes in the integration properties of jcBNST neurons may contribute to emotional dysregulation associated with drug dependence and withdrawal.
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Affiliation(s)
- Walter Francesconi
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA and Department of Anatomy and Cell Biology, School of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Attila Szücs
- BioCircuits Institute, University of California San Diego, La Jolla, CA and MTA-ELTE NAP-B Neuronal Cell Biology Group, Eötvös Lóránd University, Budapest, Hungary
| | - Fulvia Berton
- Dipartimento di Biologia, Universita’ degli Studi di Pisa, Pisa, Italy and Department of Anatomy and Cell Biology, School of Medicine, University of Illinois at Chicago, Chicago, IL
| | - George F. Koob
- Department of Neuroscience, The Scripps Research Institute, La Jolla. Current address: National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD
| | - Leandro F. Vendruscolo
- Department of Neuroscience, The Scripps Research Institute, La Jolla. Current address: National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD
| | - Pietro Paolo Sanna
- Department of Immunology and Microbiology and Department ofNeuroscience, The Scripps Research Institute, La Jolla, CA, USA.
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32
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Bolders AC, Tops M, Band GPH, Stallen PJM. Perceptual Sensitivity and Response to Strong Stimuli Are Related. Front Psychol 2017; 8:1642. [PMID: 29018377 PMCID: PMC5615480 DOI: 10.3389/fpsyg.2017.01642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 09/06/2017] [Indexed: 11/13/2022] Open
Abstract
To shed new light on the long-standing debate about the (in)dependence of sensitivity to weak stimuli and overreactivity to strong stimuli, we examined the relation between these tendencies within the neurobehavioral framework of the Predictive and Reactive Control Systems (PARCS) theory (Tops et al., 2010, 2014). Whereas previous studies only considered overreactivity in terms of the individual tendency to experience unpleasant affect (punishment reactivity) resulting from strong sensory stimulation, we also took the individual tendency to experience pleasant affect (reward reactivity) resulting from strong sensory stimulation into account. According to PARCS theory, these temperamental tendencies overlap in terms of high reactivity toward stimulation, but oppose each other in terms of the response orientation (approach or avoid). PARCS theory predicts that both types of reactivity to strong stimuli relate to sensitivity to weak stimuli, but that these relationships are suppressed due to the opposing relationship between reward and punishment reactivity. We measured punishment and reward reactivity to strong stimuli and sensitivity to weak stimuli using scales from the Adult Temperament Questionnaire (Evans and Rothbart, 2007). Sensitivity was also measured more objectively using the masked auditory threshold. We found that sensitivity to weak stimuli (both self-reported and objectively assessed) was positively associated with self-reported punishment and reward reactivity to strong stimuli, but only when these reactivity measures were controlled for each other, implicating a mutual suppression effect. These results are in line with PARCS theory and suggest that sensitivity to weak stimuli and overreactivity are dependent, but this dependency is likely to be obscured if punishment and reward reactivity are not both taken into account.
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Affiliation(s)
- Anna C Bolders
- Cognitive Psychology Unit, Institute of Psychology, Leiden UniversityLeiden, Netherlands
| | - Mattie Tops
- Leiden Institute for Brain and Cognition, Leiden UniversityLeiden, Netherlands.,Department of Clinical, Neuro- and Developmental Psychology, VU University AmsterdamAmsterdam, Netherlands
| | - Guido P H Band
- Cognitive Psychology Unit, Institute of Psychology, Leiden UniversityLeiden, Netherlands.,Leiden Institute for Brain and Cognition, Leiden UniversityLeiden, Netherlands
| | - Pieter Jan M Stallen
- Cognitive Psychology Unit, Institute of Psychology, Leiden UniversityLeiden, Netherlands
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33
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Lu Z, Yeung CK, Lin G, Yew DTW, Andrews PLR, Rudd JA. Centrally located GLP-1 receptors modulate gastric slow waves and cardiovascular function in ferrets consistent with the induction of nausea. Neuropeptides 2017; 65:28-36. [PMID: 28456436 DOI: 10.1016/j.npep.2017.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/09/2017] [Accepted: 04/13/2017] [Indexed: 11/17/2022]
Abstract
Glucagon-like peptide-1 (GLP-1) receptor agonists are indicated for the treatment of Type 2 diabetes and obesity, but can cause nausea and emesis in some patients. GLP-1 receptors are distributed widely in the brain, where they contribute to mechanisms of emesis, reduced appetite and aversion, but it is not known if these centrally located receptors also contribute to a modulation of gastric slow wave activity, which is linked causally to nausea. Our aim was to investigate the potential of the GLP-1 receptor agonist, exendin-4, administered into the 3rd ventricle to modulate emesis, feeding and gastric slow wave activity. Thermoregulation and cardiovascular parameters were also monitored, as they are disturbed during nausea. Ferrets were used as common laboratory rodents do not have an emetic reflex. A guide cannula was implanted into the 3rd ventricle for delivering a previously established dose of exendin-4 (10nmol), which had been shown to induce emesis and behaviours indicative of 'nausea'. Radiotelemetry recorded gastric myoelectric activity (GMA; slow waves), blood pressure and heart rate variability (HRV), and core temperature; food intake and behaviour were also assessed. Exendin-4 (10nmol, i.c.v.) decreased the dominant frequency of GMA, with an associated increase in the percentage of bradygastric power (lasting ~4h). Food intake was inhibited in all animals, with 63% exhibiting emesis. Exendin-4 also increased blood pressure (lasting ~24h) and heart rate (lasting ~7h), decreased HRV (lasting ~24h), and caused transient hyperthermia. None of the above parameters were emesis-dependent. The present study shows for the first time that gastric slow waves may be modulated by GLP-1 receptors in the brain through mechanisms that appear independent from emesis. Taken together with a reduction in HRV, the findings are consistent with changes associated with the occurrence of nausea in humans.
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Affiliation(s)
- Zengbing Lu
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Chi-Kong Yeung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ge Lin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - David T W Yew
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - P L R Andrews
- Division of Biomedical Sciences, St George's University of London, London, UK
| | - John A Rudd
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.; Brain and Mind Institute, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China..
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34
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Hayes DJ, Chen DQ, Zhong J, Lin A, Behan B, Walker M, Hodaie M. Affective Circuitry Alterations in Patients with Trigeminal Neuralgia. Front Neuroanat 2017; 11:73. [PMID: 28928638 PMCID: PMC5591854 DOI: 10.3389/fnana.2017.00073] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 08/11/2017] [Indexed: 11/24/2022] Open
Abstract
Trigeminal neuralgia (TN) is a severe chronic neuropathic facial pain disorder. Affect-related behavioral and structural brain changes have been noted across chronic pain disorders, but have not been well-studied in TN. We examined the potential impact of TN (37 patients: 23 with right-sided TN, 14 with left-sided TN), compared to age- and sex-matched healthy controls, on three major white matter tracts responsible for carrying affect-related signals—i.e., cingulum, fornix, and medial forebrain bundle. Diffusion magnetic resonance imaging (dMRI), deterministic multi-tensor tractography for tract modeling, and a model-driven region-of-interest approach was used. We also used volumetric gray matter analysis on key targets of these pathways (i.e., hippocampus, cingulate cortex subregions, nucleus accumbens, and ventral diencephalon). Hypotheses included: (1) successful modeling of tracts; (2) altered white matter microstructure of the cingulum and medial forebrain bundle (via changes in dMRI metrics such as fractional anisotropy, and mean, axial, and radial diffusivities) compared to controls; (3) no alterations in the control region of the fornix; (4) corresponding decreases in gray matter volumes. Results showed (1) all 325 tracts were successfully modeled, although 11 were partially complete; (2) The cingulum and medial forebrain bundle (MFB) were altered in those with TN, with dMRI metric changes in the middle (p = 0.001) and posterior cingulum (p < 0.0001), and the MFB near the ventral tegmental area (MFB-VTA) (p = 0.001). The posterior cingulum and MFB-VTA also showed unilateral differences between right- and left-sided TN patients; (3) No differences were noted at any fornix subdivision; (4) decreased volumes were noted for the hippocampus, posterior cingulate, nucleus accumbens, and ventral diencephalon. Together, these results support the notion of selectively altered affective circuits in patients with TN, which may be related to the experience of negative affect and the increased comorbidity of mood and anxiety disorders in this population.
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Affiliation(s)
- Dave J Hayes
- Psychology Department and Neuroscience Program, Union CollegeSchenectady, NY, United States.,Division of Brain, Imaging and Behaviour Systems Neuroscience and Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, Krembil Research Institute, University Health Network, University of TorontoToronto, ON, Canada
| | - David Q Chen
- Division of Brain, Imaging and Behaviour Systems Neuroscience and Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, Krembil Research Institute, University Health Network, University of TorontoToronto, ON, Canada
| | - Jidan Zhong
- Division of Brain, Imaging and Behaviour Systems Neuroscience and Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, Krembil Research Institute, University Health Network, University of TorontoToronto, ON, Canada
| | - Ariel Lin
- Psychology Department and Neuroscience Program, Union CollegeSchenectady, NY, United States
| | - Brendan Behan
- Division of Brain, Imaging and Behaviour Systems Neuroscience and Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, Krembil Research Institute, University Health Network, University of TorontoToronto, ON, Canada
| | - Matthew Walker
- Division of Brain, Imaging and Behaviour Systems Neuroscience and Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, Krembil Research Institute, University Health Network, University of TorontoToronto, ON, Canada
| | - Mojgan Hodaie
- Division of Brain, Imaging and Behaviour Systems Neuroscience and Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, Krembil Research Institute, University Health Network, University of TorontoToronto, ON, Canada
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Torrisi S, Nord CL, Balderston NL, Roiser JP, Grillon C, Ernst M. Resting state connectivity of the human habenula at ultra-high field. Neuroimage 2017; 147:872-879. [PMID: 27780778 PMCID: PMC5303669 DOI: 10.1016/j.neuroimage.2016.10.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/03/2016] [Accepted: 10/20/2016] [Indexed: 11/24/2022] Open
Abstract
The habenula, a portion of the epithalamus, is implicated in the pathophysiology of depression, anxiety and addiction disorders. Its small size and connection to other small regions prevent standard human imaging from delineating its structure and connectivity with confidence. Resting state functional connectivity is an established method for mapping connections across the brain from a seed region of interest. The present study takes advantage of 7T fMRI to map, for the first time, the habenula resting state network with very high spatial resolution in 32 healthy human participants. Results show novel functional connections in humans, including functional connectivity with the septum and bed nucleus of the stria terminalis (BNST). Results also show many habenula connections previously described only in animal research, such as with the nucleus basalis of Meynert, dorsal raphe, ventral tegmental area (VTA), and periaqueductal grey (PAG). Connectivity with caudate, thalamus and cortical regions such as the anterior cingulate, retrosplenial cortex and auditory cortex are also reported. This work, which demonstrates the power of ultra-high field for mapping human functional connections, is a valuable step toward elucidating subcortical and cortical regions of the habenula network.
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Affiliation(s)
- Salvatore Torrisi
- Section on the Neurobiology of Fear and Anxiety, National Institute of Mental Health, Bethesda, MD, United States
| | - Camilla L Nord
- Neuroscience and Cognitive Neuropsychiatry group, University of College, London, UK
| | - Nicholas L Balderston
- Section on the Neurobiology of Fear and Anxiety, National Institute of Mental Health, Bethesda, MD, United States
| | - Jonathan P Roiser
- Neuroscience and Cognitive Neuropsychiatry group, University of College, London, UK
| | - Christian Grillon
- Section on the Neurobiology of Fear and Anxiety, National Institute of Mental Health, Bethesda, MD, United States
| | - Monique Ernst
- Section on the Neurobiology of Fear and Anxiety, National Institute of Mental Health, Bethesda, MD, United States
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Hübner NS, Mechling AE, Lee HL, Reisert M, Bienert T, Hennig J, von Elverfeldt D, Harsan LA. The connectomics of brain demyelination: Functional and structural patterns in the cuprizone mouse model. Neuroimage 2017; 146:1-18. [DOI: 10.1016/j.neuroimage.2016.11.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 10/18/2016] [Accepted: 11/01/2016] [Indexed: 01/02/2023] Open
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Ly HG, Dupont P, Van Laere K, Depoortere I, Tack J, Van Oudenhove L. Differential brain responses to gradual intragastric nutrient infusion and gastric balloon distension: A role for gut peptides? Neuroimage 2017; 144:101-112. [DOI: 10.1016/j.neuroimage.2016.09.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 08/18/2016] [Accepted: 09/13/2016] [Indexed: 12/15/2022] Open
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Deletion of the mu opioid receptor gene in mice reshapes the reward-aversion connectome. Proc Natl Acad Sci U S A 2016; 113:11603-11608. [PMID: 27671662 DOI: 10.1073/pnas.1601640113] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Connectome genetics seeks to uncover how genetic factors shape brain functional connectivity; however, the causal impact of a single gene's activity on whole-brain networks remains unknown. We tested whether the sole targeted deletion of the mu opioid receptor gene (Oprm1) alters the brain connectome in living mice. Hypothesis-free analysis of combined resting-state fMRI diffusion tractography showed pronounced modifications of functional connectivity with only minor changes in structural pathways. Fine-grained resting-state fMRI mapping, graph theory, and intergroup comparison revealed Oprm1-specific hubs and captured a unique Oprm1 gene-to-network signature. Strongest perturbations occurred in connectional patterns of pain/aversion-related nodes, including the mu receptor-enriched habenula node. Our data demonstrate that the main receptor for morphine predominantly shapes the so-called reward/aversion circuitry, with major influence on negative affect centers.
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Thibault K, Rivière S, Lenkei Z, Férézou I, Pezet S. Orofacial Neuropathic Pain Leads to a Hyporesponsive Barrel Cortex with Enhanced Structural Synaptic Plasticity. PLoS One 2016; 11:e0160786. [PMID: 27548330 PMCID: PMC4993517 DOI: 10.1371/journal.pone.0160786] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 07/25/2016] [Indexed: 12/30/2022] Open
Abstract
Chronic pain is a long-lasting debilitating condition that is particularly difficult to treat due to the lack of identified underlying mechanisms. Although several key contributing processes have been described at the level of the spinal cord, very few studies have investigated the supraspinal mechanisms underlying chronic pain. Using a combination of approaches (cortical intrinsic imaging, immunohistochemical and behavioural analysis), our study aimed to decipher the nature of functional and structural changes in a mouse model of orofacial neuropathic pain, focusing on cortical areas involved in various pain components. Our results show that chronic neuropathic orofacial pain is associated with decreased haemodynamic responsiveness to whisker stimulation in the barrel field cortex. This reduced functional activation is likely due to the increased basal neuronal activity (measured indirectly using cFos and phospho-ERK immunoreactivity) observed in several cortical areas, including the contralateral barrel field, motor and cingulate cortices. In the same animals, immunohistochemical analysis of markers for active pre- or postsynaptic elements (Piccolo and phospho-Cofilin, respectively) revealed an increased immunofluorescence in deep cortical layers of the contralateral barrel field, motor and cingulate cortices. These results suggest that long-lasting orofacial neuropathic pain is associated with exacerbated neuronal activity and synaptic plasticity at the cortical level.
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Affiliation(s)
- Karine Thibault
- Brain Plasticity Unit, ESPCI, PSL Research University, 10 rue Vauquelin, 75005, Paris, France
- Centre National de la Recherche Scientifique, UMR 8249, 75005, Paris, France
| | - Sébastien Rivière
- Brain Plasticity Unit, ESPCI, PSL Research University, 10 rue Vauquelin, 75005, Paris, France
- Centre National de la Recherche Scientifique, UMR 8249, 75005, Paris, France
| | - Zsolt Lenkei
- Brain Plasticity Unit, ESPCI, PSL Research University, 10 rue Vauquelin, 75005, Paris, France
- Centre National de la Recherche Scientifique, UMR 8249, 75005, Paris, France
| | - Isabelle Férézou
- Brain Plasticity Unit, ESPCI, PSL Research University, 10 rue Vauquelin, 75005, Paris, France
- Centre National de la Recherche Scientifique, UMR 8249, 75005, Paris, France
| | - Sophie Pezet
- Brain Plasticity Unit, ESPCI, PSL Research University, 10 rue Vauquelin, 75005, Paris, France
- Centre National de la Recherche Scientifique, UMR 8249, 75005, Paris, France
- * E-mail:
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Expose or protect? A randomized controlled trial of exposure in vivo vs pain-contingent treatment as usual in patients with complex regional pain syndrome type 1. Pain 2016; 157:2318-2329. [DOI: 10.1097/j.pain.0000000000000651] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hubbard CS, Becerra L, Heinz N, Ludwick A, Rasooly T, Wu R, Johnson A, Schechter NL, Borsook D, Nurko S. Abdominal Pain, the Adolescent and Altered Brain Structure and Function. PLoS One 2016; 11:e0156545. [PMID: 27244227 PMCID: PMC4886967 DOI: 10.1371/journal.pone.0156545] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 05/16/2016] [Indexed: 12/22/2022] Open
Abstract
Irritable bowel syndrome (IBS) is a functional gastrointestinal (GI) disorder of unknown etiology. Although relatively common in children, how this condition affects brain structure and function in a pediatric population remains unclear. Here, we investigate brain changes in adolescents with IBS and healthy controls. Imaging was performed with a Siemens 3 Tesla Trio Tim MRI scanner equipped with a 32-channel head coil. A high-resolution T1-weighted anatomical scan was acquired followed by a T2-weighted functional scan. We used a surface-based morphometric approach along with a seed-based resting-state functional connectivity (RS-FC) analysis to determine if groups differed in cortical thickness and whether areas showing structural differences also showed abnormal RS-FC patterns. Patients completed the Abdominal Pain Index and the GI Module of the Pediatric Quality of Life Inventory to assess abdominal pain severity and impact of GI symptoms on health-related quality of life (HRQOL). Disease duration and pain intensity were also assessed. Pediatric IBS patients, relative to controls, showed cortical thickening in the posterior cingulate (PCC), whereas cortical thinning in posterior parietal and prefrontal areas were found, including the dorsolateral prefrontal cortex (DLPFC). In patients, abdominal pain severity was related to cortical thickening in the intra-abdominal area of the primary somatosensory cortex (SI), whereas HRQOL was associated with insular cortical thinning. Disease severity measures correlated with cortical thickness in bilateral DLPFC and orbitofrontal cortex. Patients also showed reduced anti-correlations between PCC and DLPFC compared to controls, a finding that may reflect aberrant connectivity between default mode and cognitive control networks. We are the first to demonstrate concomitant structural and functional brain changes associated with abdominal pain severity, HRQOL related to GI-specific symptoms, and disease-specific measures in adolescents with IBS. It is possible such changes will be responsive to therapeutic intervention and may be useful as potential markers of disease progression or reversal.
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Affiliation(s)
- Catherine S. Hubbard
- Center for Pain and the Brain, Boston Children’s Hospital, Waltham, Massachusetts, United States of America
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Anaesthesia, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
| | - Lino Becerra
- Center for Pain and the Brain, Boston Children’s Hospital, Waltham, Massachusetts, United States of America
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Anaesthesia, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Nicole Heinz
- Center for Motility and Functional Gastrointestinal Disorders, Division of Gastroenterology, Department of Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
| | - Allison Ludwick
- Center for Pain and the Brain, Boston Children’s Hospital, Waltham, Massachusetts, United States of America
| | - Tali Rasooly
- Center for Pain and the Brain, Boston Children’s Hospital, Waltham, Massachusetts, United States of America
| | - Rina Wu
- Center for Motility and Functional Gastrointestinal Disorders, Division of Gastroenterology, Department of Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
| | - Adriana Johnson
- Center for Pain and the Brain, Boston Children’s Hospital, Waltham, Massachusetts, United States of America
| | - Neil L. Schechter
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Anaesthesia, Harvard Medical School, Boston, Massachusetts, United States of America
| | - David Borsook
- Center for Pain and the Brain, Boston Children’s Hospital, Waltham, Massachusetts, United States of America
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
- Department of Anaesthesia, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Samuel Nurko
- Center for Motility and Functional Gastrointestinal Disorders, Division of Gastroenterology, Department of Medicine, Boston Children’s Hospital, Boston, Massachusetts, United States of America
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Abstract
PURPOSE OF REVIEW This article reviews the current state of knowledge in functional MRI (fMRI) research related to pain with primary focus on clinical studies. RECENT FINDINGS With fMRI, the subjective effects of pain (sensory, affect, emotion, and motor components) can be objectively imaged. Although the conventional fMRI technique has been the isolation of regions in the brain transmitting and modulating pain, functional connectivity measurement can identify functionally linked regions associated with pain processing. The primary and secondary somatosensory cortex (S1 and S2), anterior cingulate cortex (ACC), and insula are the four regions (part of pain matrix) consistently activated in pain states. Functional connectivity between the prefrontal cortex (PFC), ACC, and insula correlates well with clinical pain measures. The dorsal medial PFC to insula connectivity can identify patients prone to persistent back pain. Default mode network (DMN) to insula connectivity is associated with spontaneous pain in fibromyalgia patients. In addition, the DMN encompasses the PFC. Techniques for fMRI analysis, templates, and standards for identifying the functional networks in the brain are evolving continuously. The activation pattern with analgesic agents seems to be specific to the class of drugs. SUMMARY As we learn more about fMRI related to pain, functional connectivity patterns could emerge as biomarkers for specific pain conditions.
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Chang PC, Procissi D, Bao Q, Centeno MV, Baria A, Apkarian AV. Novel method for functional brain imaging in awake minimally restrained rats. J Neurophysiol 2016; 116:61-80. [PMID: 27052584 DOI: 10.1152/jn.01078.2015] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 04/05/2016] [Indexed: 11/22/2022] Open
Abstract
Functional magnetic resonance imaging (fMRI) in rodents holds great promise for advancing our knowledge about human brain function. However, the use of anesthetics to immobilize rodents during fMRI experiments has restricted the type of questions that can be addressed using this technique. Here we describe an innovative procedure to train rats to be constrained without the need of any anesthesia during the whole procedure. We show that with 8-10 days of acclimation rats can be conscious and remain still during fMRI experiments under minimal stress. In addition, we provide fMRI results of conscious rodents in a variety of commonly used fMRI experimental paradigms, and we demonstrate the improved quality of these scans by comparing results when the same rodents were scanned under anesthesia. We confirm that the awake scanning procedure permits an improved evaluation of brain networks and brain response to external stimuli with minimal movement artifact. The present study further advances the field of fMRI in awake rodents, which provide more direct, forward and reverse, translational opportunities regarding brain functional correspondences between human and rodent research.
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Affiliation(s)
- Pei-Ching Chang
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Daniel Procissi
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and
| | - Qiyuan Bao
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Maria Virginia Centeno
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Alex Baria
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - A Vania Apkarian
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois;
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Prior exposure to extreme pain alters neural response to pain in others. COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2016; 16:662-71. [DOI: 10.3758/s13415-016-0422-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Corbo V, Salat DH, Powell MA, Milberg WP, McGlinchey RE. Combat exposure is associated with cortical thickness in Veterans with a history of chronic pain. Psychiatry Res Neuroimaging 2016; 249:38-44. [PMID: 27000305 DOI: 10.1016/j.pscychresns.2016.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/15/2015] [Accepted: 02/09/2016] [Indexed: 11/24/2022]
Abstract
Chronic Pain (CP) has been associated with changes in gray matter integrity in the cingulate and insular cortex. However, these changes have not been studied in Veterans, despite high prevalence rates of CP and interactions with combat-derived disorders. In the current study, 54 Veterans with a history of CP and 103 Veterans without CP were recruited from the Translational Research Center for Traumatic Brain Injury and Stress Disorders (TRACTS). Cortical thickness from structural MRI scans was determined using the FreeSurfer software package. Results showed that Veterans with CP showed a negative association between cortical thickness and levels of combat exposure in the left inferior frontal gyrus and superior parietal cortex, as well as the right rostral middle frontal gyrus, precentral and postcentral gyri and the superior temporal cortex. These findings suggest that CP may alter the relationship between cortical thickness and exposure to the stress of combat.
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Affiliation(s)
- Vincent Corbo
- Translational Research Center for TBI and Stress Disorders (TRACTS)/Geriatric Research Education and Clinical Centers (GRECC), VA Boston Healthcare System, Boston, MA, USA; Boston University School of Medicine, Boston, MA, USA.
| | - David H Salat
- Translational Research Center for TBI and Stress Disorders (TRACTS)/Geriatric Research Education and Clinical Centers (GRECC), VA Boston Healthcare System, Boston, MA, USA; Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
| | | | - William P Milberg
- Translational Research Center for TBI and Stress Disorders (TRACTS)/Geriatric Research Education and Clinical Centers (GRECC), VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Cambridge, MA, USA
| | - Regina E McGlinchey
- Translational Research Center for TBI and Stress Disorders (TRACTS)/Geriatric Research Education and Clinical Centers (GRECC), VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Cambridge, MA, USA
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Viewing the body modulates both pain sensations and pain responses. Exp Brain Res 2016; 234:1795-1805. [PMID: 26884131 PMCID: PMC4893070 DOI: 10.1007/s00221-016-4585-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 01/30/2016] [Indexed: 01/23/2023]
Abstract
Viewing the body can influence pain perception, even when vision is non-informative about the noxious stimulus. Prior studies used either continuous pain rating scales or pain detection thresholds, which cannot distinguish whether viewing the body changes the discriminability of noxious heat intensities or merely shifts reported pain levels. In Experiment 1, participants discriminated two intensities of heat-pain stimulation. Noxious stimuli were delivered to the hand in darkness immediately after participants viewed either their own hand or a non-body object appearing in the same location. The visual condition varied randomly between trials. Discriminability of the noxious heat intensities (d′) was lower after viewing the hand than after viewing the object, indicating that viewing the hand reduced the information about stimulus intensity available within the nociceptive system. In Experiment 2, the hand and the object were presented in separate blocks of trials. Viewing the hand shifted perceived pain levels irrespective of actual stimulus intensity, biasing responses toward ‘high pain’ judgments. In Experiment 3, participants saw the noxious stimulus as it approached and touched their hand or the object. Seeing the pain-inducing event counteracted the reduction in discriminability found when viewing the hand alone. These findings show that viewing the body can affect both perceptual processing of pain and responses to pain, depending on the visual context. Many factors modulate pain; our study highlights the importance of distinguishing modulations of perceptual processing from modulations of response bias.
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Collen M. Operationalizing Pain Treatment in the Biopsychosocial Model: Take a Daily "SWEM"--Socialize, Work, Exercise, Meditate. J Pain Palliat Care Pharmacother 2015; 29:290-9. [PMID: 26367791 DOI: 10.3109/15360288.2015.1063563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In the United States, chronic pain is often poorly treated at an exceedingly high cost. The use of the biomedical model to manage pain is frequently ineffective, and evidence suggests that the biopsychosocial (BPS) model is a better choice. A problem with the BPS model is that it has not been operationalized in terms of patient behavior. This commentary addresses that issue by suggesting that people with chronic pain and illness participate daily in four self-management health behaviors: socialize, work, exercise, and meditation, and discusses evidence that supports these recommendations. These self-management behaviors may decrease pain and thus reduce the need for pain medications and other medical interventions. Additional topics include patient adherence and health coaching.
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Penagos-Corzo JC, Bonilla A, Rodríguez-Moreno A, Flores G, Negrete-Díaz JV. Conditional self-discrimination enhances dendritic spine number and dendritic length at prefrontal cortex and hippocampal neurons of rats. Synapse 2015; 69:543-52. [DOI: 10.1002/syn.21847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 07/28/2015] [Accepted: 08/09/2015] [Indexed: 12/20/2022]
Affiliation(s)
| | - Andrea Bonilla
- Departamento de Psicología; Universidad de Las Américas Puebla; Cholula Puebla México
| | - Antonio Rodríguez-Moreno
- Departamento de Fisiología; Anatomía y Biología Celular, Universidad Pablo de Olavide; Sevilla Spain
| | - Gonzalo Flores
- Laboratorio de Neuropsiquiatría; Instituto de Fisiología, Benemérita Universidad Autónoma De Puebla; Puebla México
| | - José V. Negrete-Díaz
- Departamento de Fisiología; Anatomía y Biología Celular, Universidad Pablo de Olavide; Sevilla Spain
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Guida F, Luongo L, Marmo F, Romano R, Iannotta M, Napolitano F, Belardo C, Marabese I, D'Aniello A, De Gregorio D, Rossi F, Piscitelli F, Lattanzi R, de Bartolomeis A, Usiello A, Di Marzo V, de Novellis V, Maione S. Palmitoylethanolamide reduces pain-related behaviors and restores glutamatergic synapses homeostasis in the medial prefrontal cortex of neuropathic mice. Mol Brain 2015; 8:47. [PMID: 26260027 PMCID: PMC4532244 DOI: 10.1186/s13041-015-0139-5] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/02/2015] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Enhanced supraspinal glutamate levels following nerve injury are associated with pathophysiological mechanisms responsible for neuropathic pain. Chronic pain can interfere with specific brain areas involved in glutamate-dependent neuropsychological processes, such as cognition, memory, and decision-making. The medial prefrontal cortex (mPFC) is thought to play a critical role in pain-related depression and anxiety, which are frequent co-morbidities of chronic pain. Using an animal model of spared nerve injury (SNI) of the sciatic nerve, we assess bio-molecular modifications in glutamatergic synapses in the mPFC that underlie neuropathic pain-induced plastic changes at 30 days post-surgery. Moreover, we examine the effects of palmitoylethanolamide (PEA) administration on pain-related behaviours, as well as the cortical biochemical and morphological changes that occur in SNI animals. RESULTS At 1 month, SNI was associated with mechanical and thermal hypersensitivity, as well as depression-like behaviour, cognitive impairments, and obsessive-compulsive activities. Moreover, we observed an overall glutamate synapse modification in the mPFC, characterized by changes in synaptic density proteins and amino acid levels. Finally, with regard to the resolution of pain and depressive-like syndrome in SNI mice, PEA restored the glutamatergic synapse proteins and changes in amino acid release. CONCLUSIONS Given the potential role of the mPFC in pain mechanisms, our findings may provide novel insights into neuropathic pain forebrain processes and indicate PEA as a new pharmacological tool to treat neuropathic pain and the related negative affective states. Graphical Abstract Palmitoylethanolamide: a new pharmacological tool to treat neuropathic pain and the related negative affective states.
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Affiliation(s)
- F Guida
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - L Luongo
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - F Marmo
- Department of Neuroscience, Laboratory of Molecular and Translational Psychiatry, University School of Medicine "Federico II", Naples, Italy
| | - R Romano
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - M Iannotta
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - F Napolitano
- Behavioural Neuroscience Laboratory, CEINGE - Biotecnologie Avanzate, Via Comunale Margherita 482, 80145, Naples, Italy
| | - C Belardo
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - I Marabese
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - A D'Aniello
- Stazione Zoologica "Anton Dohrn", Naples, Italy
| | - D De Gregorio
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - F Rossi
- Department of Women, Child and General and Specialistic Surgery, Second University of Naples, Naples, Italy
| | - F Piscitelli
- Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078, Pozzuoli, NA, Italy
| | - R Lattanzi
- Department of Physiology and Pharmacology, Sapienza University of Rome, 00185, Rome, Italy
| | - A de Bartolomeis
- Department of Neuroscience, Laboratory of Molecular and Translational Psychiatry, University School of Medicine "Federico II", Naples, Italy
| | - A Usiello
- Behavioural Neuroscience Laboratory, CEINGE - Biotecnologie Avanzate, Via Comunale Margherita 482, 80145, Naples, Italy
| | - V Di Marzo
- Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078, Pozzuoli, NA, Italy
| | - V de Novellis
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy
| | - S Maione
- Department of Experimental Medicine, Section of Pharmacology L. Donatelli, Second University of Naples, 80138, Naples, Italy.
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Zhang S, Hu S, Chao HH, Li CSR. Resting-State Functional Connectivity of the Locus Coeruleus in Humans: In Comparison with the Ventral Tegmental Area/Substantia Nigra Pars Compacta and the Effects of Age. Cereb Cortex 2015. [PMID: 26223261 DOI: 10.1093/cercor/bhv172] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The locus coeruleus (LC) provides the primary noradrenergic inputs to the cerebral cortex. Despite numerous animal studies documenting the functions of the LC, research in humans is hampered by the small volume of this midbrain nucleus. Here, we took advantage of a probabilistic template, explored the cerebral functional connectivity of the LC with resting-state fMRI data of 250 healthy adults, and verified the findings by accounting for physiological noise in another data set. In addition, we contrasted connectivities of the LC and the ventral tegmental area/substantia nigra pars compacta. The results highlighted both shared and distinct connectivity of these 2 midbrain structures, as well as an opposite pattern of connectivity to bilateral amygdala, pulvinar, and right anterior insula. Additionally, LC connectivity to the fronto-parietal cortex and the cerebellum increases with age and connectivity to the visual cortex decreases with age. These findings may facilitate studies of the role of the LC in arousal, saliency responses and cognitive motor control and in the behavioral and cognitive manifestations during healthy and disordered aging. Although the first to demonstrate whole-brain LC connectivity, these findings need to be confirmed with high-resolution imaging.
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Affiliation(s)
| | | | - Herta H Chao
- Department of Internal Medicine, Yale University, New Haven, CT 06519, USA Medical Service, VA Connecticut Health Care System, West Haven, CT 06516, USA
| | - Chiang-Shan R Li
- Department of Psychiatry Department of Neurobiology Interdepartmental Neuroscience Program, Yale University, New Haven, CT 06520, USA Connecticut Mental Health Center, New Haven, CT 06519, USA
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