Journal ArticleJ Pain · November 2025
Temporomandibular disorders (TMDs) are complex conditions characterized by orofacial pain and dysfunction, affecting a significant portion of the population. TMDs may involve joint and/or muscle pain, dysfunction (e.g., noise, limited or altered jaw moveme ...
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Journal ArticleNat Rev Rheumatol · October 2025
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by protean clinical manifestations that are associated with immune system dysregulation. Of these manifestations, pain and pain-related symptoms such as fatigue, mood disturba ...
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Journal ArticleJ Pain · August 2025
While opioid medications are potent analgesics, their usage in chronic pain conditions can paradoxically result in opioid-induced hyperalgesia (i.e., enhanced pain sensitivity). However, among individuals with chronic pain, minimal research has examined th ...
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Journal ArticleSci Rep · July 30, 2025
Brain gray matter volume (GMV) has been extensively examined in chronic pain and opioid therapy, but spinal GMV has not. As a first investigation of spinal cord GMV in chronic pain and opioid therapy, as our primary outcome, we compared averaged C5-C7 GMV ...
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Journal ArticleSci Rep · April 25, 2025
While attentional processing of reward may be altered in chronic pain, the neural circuits underlying these alterations, and impact from opioid use have remained unclear. To investigate the neural representation of attentional processing in chronic pain, w ...
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Journal ArticlebioRxiv · January 27, 2025
Functional magnetic resonance imaging (fMRI) of the spinal cord is relevant for studying sensation, movement, and autonomic function. Preprocessing of spinal cord fMRI data involves segmentation of the spinal cord on gradient-echo echo planar imaging (EPI) ...
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Journal ArticleImaging Neurosci (Camb) · 2025
Functional magnetic resonance imaging (fMRI) of the spinal cord is relevant for studying sensation, movement, and autonomic function. Preprocessing of spinal cord fMRI data involves segmentation of the spinal cord on gradient-echo echo planar imaging (EPI) ...
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Journal ArticleTrends Neurosci · June 2024
Evidence of central nervous system (CNS) exogenous opioid effects in humans has been primarily gained through neuroimaging of three participant populations: individuals after acute opioid administration, those with opioid use disorder (OUD), and those with ...
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Journal ArticleCortex · April 2024
Reward motivation is essential in shaping human behavior and cognition. Both reward motivation and reward brain circuits are altered in chronic pain conditions, including fibromyalgia. In this study of fibromyalgia patients, we used a data-driven independe ...
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Journal ArticlePhysiol Behav · November 1, 2023
Urological chronic pelvic pain syndrome (UCPPS) is a debilitating painful condition with unclear etiology. Prior researchers have indicated that compared to healthy controls, patients with UCPPS demonstrated altered brain activity. Researchers have also sh ...
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Journal ArticleBr J Anaesth · August 2023
BACKGROUND: Animal studies have shown that isoflurane and propofol have differential effects on Alzheimer's disease (AD) pathology and memory, although it is unclear whether this occurs in humans. METHODS: This was a nested randomised controlled trial with ...
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Journal ArticlemedRxiv · May 2, 2023
OBJECTIVE: Chronic pain involves alterations in brain gray matter volume (GMV). Moreover, opioid medications are known to reduce GMV in numerous brain regions involved in pain processing. However, no research has evaluated (1) chronic pain-related GMV alte ...
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Journal ArticlemedRxiv · April 29, 2023
Reward motivation is essential in shaping human behavior and cognition. Previous studies have shown altered reward motivation and reward brain circuitry in chronic pain conditions, including fibromyalgia. Fibromyalgia is a chronic disorder characterized by ...
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Journal ArticleFront Neurosci · 2023
INTRODUCTION: In chronic pain conditions such as fibromyalgia (FM), pain amplification within the central nervous system, or "central sensitization," may contribute to the development and maintenance of chronic pain. Chronic pain treatments include opioid ...
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Journal ArticleNeuroimage Rep · December 2022
Neuroimaging research has begun to implicate alterations of brain reward systems in chronic pain. Previously, using functional magnetic resonance imaging (fMRI) and a monetary incentive delay (MID) task, Martucci et al. (2018) showed that neural responses ...
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Journal ArticleSci Rep · July 25, 2022
Brain corticostriatal circuits are important for understanding chronic pain and highly relevant to motivation and cognitive processes. It has been demonstrated that in patients with chronic back pain, altered nucleus accumbens (NAcc)-medial prefrontal cort ...
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Journal ArticleAnn Clin Transl Neurol · February 2022
OBJECTIVE: Numerous investigators have theorized that postoperative changes in Alzheimer's disease neuropathology may underlie postoperative neurocognitive disorders. Thus, we determined the relationship between postoperative changes in cognition and cereb ...
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Journal ArticleFront Neurosci · 2022
Chronic pain and reward processing are understood to be reciprocally related to one another. Previous studies of reward processing in chronic pain patients have reported incongruent findings. While several factors likely contribute to these disparate findi ...
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Journal ArticleJ Pain Res · 2022
PURPOSE: The cold pressor test (CPT) is a clinical pain research method used to measure cold pain tolerance. During this test, participants immerse an extremity (ie, hand or foot) into cold water for as long as tolerable. The duration of the test (traditio ...
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Journal ArticleBr J Anaesth · December 2021
BACKGROUND: Cognitive dysfunction after surgery is a major issue in older adults. Here, we determined the effect of APOE4 on perioperative neurocognitive function in older patients. METHODS: We enrolled 140 English-speaking patients ≥60 yr old scheduled fo ...
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Journal ArticleFront Psychiatry · 2021
Background: Low-grade inflammation has been implicated in the etiology of depression, long-term fatigue and chronic pain. TNFα and IL-6 are perhaps the most studied pro-inflammatory cytokines in the field of psychoneuroimmunology. The purpose of our study ...
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Journal ArticleFront Neurol · 2021
Chronic pain coincides with myriad functional alterations throughout the brain and spinal cord. While spinal cord mechanisms of chronic pain have been extensively characterized in animal models and in vitro, to date, research in patients with chronic pain ...
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Journal ArticleSci Rep · July 3, 2019
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Neural responses to incentives are altered in chronic pain and by opioid use. To understand how opioid use modulates the neural response to reward/value in chronic pain, we compared brain functional magnetic resonance imaging (fMRI) responses to a monetary ...
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Journal ArticleNat Rev Urol · March 2019
Urologic chronic pelvic pain syndrome (UCPPS), which encompasses interstitial cystitis/bladder pain syndrome and chronic prostatitis/chronic pelvic pain syndrome, is characterized by chronic pain in the pelvic region or genitalia that is often accompanied ...
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Journal ArticleArthritis Rheumatol · March 2019
Featured Publication
OBJECTIVE: Altered afferent input and central neural modulation are thought to contribute to fibromyalgia symptoms, and these processes converge within the spinal cord. We undertook this study to investigate the hypothesis that, using resting-state functio ...
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Journal ArticlePain Rep · 2019
One of the key ambitions of neuroimaging-based pain biomarker research is to augment patient and clinician reporting of clinically relevant phenomena with neural measures for prediction, prognosis, and detection of pain. Despite years of productive researc ...
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Journal ArticlePain · August 2018
Featured Publication
Chronic pain may alter both affect- and value-related behaviors, which represents a potentially treatable aspect of chronic pain experience. Current understanding of how chronic pain influences the function of brain reward systems, however, is limited. Usi ...
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ConferenceAnnu Int Conf IEEE Eng Med Biol Soc · July 2018
Fibromyalgia is a multifaceted chronic pain condition of unknown etiology. Conditioned pain modulation (CPM) such as cold water pressor test of the foot, is widely documented as being disrupted in patients with fibromyalgia. To date, the mechanisms underly ...
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Journal ArticleAnesthesiology · June 2018
Featured Publication
Neuroimaging research has demonstrated definitive involvement of the central nervous system in the development, maintenance, and experience of chronic pain. Structural and functional neuroimaging has helped elucidate central nervous system contributors to ...
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Journal ArticlePain · October 2017
Chronic pain is often measured with a severity score that overlooks its spatial distribution across the body. This widespread pain is believed to be a marker of centralization, a central nervous system process that decouples pain perception from nociceptiv ...
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ConferenceAnnu Int Conf IEEE Eng Med Biol Soc · July 2017
Recent advances in multivariate statistical analysis of blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) have provided novel insights into the network organization of the human brain. Here, we applied group independent compo ...
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Journal ArticlePain · June 2017
Chronic pain symptoms often change over time, even in individuals who have had symptoms for years. Studying biological factors that predict trends in symptom change in chronic pain may uncover novel pathophysiological mechanisms and potential therapeutic t ...
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Journal ArticlePain · December 2016
Clinical phenotyping of urological chronic pelvic pain syndromes (UCPPSs) in men and women have focused on end organ abnormalities to identify putative clinical subtypes. Initial evidence of abnormal brain function and structure in male pelvic pain has nec ...
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Journal ArticleAnesthesiol Clin · June 2016
The challenges and understanding of acute and chronic pain have been illuminated through the advancement of central neuroimaging. Through neuroimaging research, new technology and findings have allowed us to identify and understand the neural mechanisms co ...
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Journal ArticlePain · September 2015
Altered resting-state (RS) brain activity, as a measure of functional connectivity (FC), is commonly observed in chronic pain. Identifying a reliable signature pattern of altered RS activity for chronic pain could provide strong mechanistic insights and se ...
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Journal ArticleJ Urol · July 2015
PURPOSE: Several chronic pain conditions may be distinguished by condition specific brain anatomical and functional abnormalities on imaging, which are suggestive of underlying disease processes. We present what is to our knowledge the first characterizati ...
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Journal ArticleJ Urol · January 2015
PURPOSE: Interstitial cystitis is a highly prevalent pain condition estimated to affect 3% to 6% of women in the United States. Emerging data suggest there are central neurobiological components to the etiology of this disease. We report the first brain st ...
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Journal ArticlePain · December 2014
Neuroimaging studies have shown that changes in brain morphology often accompany chronic pain conditions. However, brain biomarkers that are sensitive and specific to chronic pelvic pain (CPP) have not yet been adequately identified. Using data from the Tr ...
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Journal ArticlePain · December 2014
The role of endogenous analgesic mechanisms has largely been viewed in the context of gain modulation during nociceptive processing. However, these analgesic mechanisms may play critical roles in the extraction and subsequent utilization of information rel ...
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Journal ArticleFuture Neurol · November 2014
Advances in neuroimaging have helped illuminate our understanding of how the brain works in the presence of chronic pain, which often persists with unknown etiology or after the painful stimulus has been removed and any wounds have healed. Neuroimaging has ...
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Journal ArticleJ Urol · September 2014
PURPOSE: The pathophysiology of interstitial cystitis/painful bladder syndrome remains incompletely understood but is thought to involve central disturbance in the processing of pain and viscerosensory signals. We identified differences in brain activity a ...
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Journal ArticleSoc Cogn Affect Neurosci · June 2014
Anxiety is the cognitive state related to the inability to control emotional responses to perceived threats. Anxiety is inversely related to brain activity associated with the cognitive regulation of emotions. Mindfulness meditation has been found to regul ...
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Journal ArticlePain · March 2014
Pain is a highly personal experience that varies substantially among individuals. In search of an anatomical correlate of pain sensitivity, we used voxel-based morphometry to investigate the relationship between grey matter density across the whole brain a ...
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Journal ArticlePain · June 2012
The mechanisms supporting temporal processing of pain remain poorly understood. To determine the involvement of opioid mechanisms in temporal processing of pain, responses to dynamic noxious thermal stimuli and offset analgesia were assessed after administ ...
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Journal ArticlePain · February 2012
Pain perception is temporally altered during states of chronic pain and acute central sensitization; however, the mechanisms contributing to temporal processing of nociceptive information remain poorly understood. Offset analgesia is a phenomenon that refl ...
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Journal ArticleJ Neurosci · April 6, 2011
The subjective experience of one's environment is constructed by interactions among sensory, cognitive, and affective processes. For centuries, meditation has been thought to influence such processes by enabling a nonevaluative representation of sensory ev ...
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