Michael E Robinson's research while affiliated with University of Florida and other places
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Publications (345)
Although laboratory studies indicate alcohol reduces pain intensity and increases pain threshold, these effects likely do not completely explain perceived pain relief from alcohol intake. In this study, we tested expectancy of alcohol analgesia (EAA) as a moderator of subjective pain relief following oral alcohol challenge in individuals with and w...
Background:
Task-based functional connectivity (FC) of pain-related regions resulting from expectancy-based placebo induction has yet to be examined, limiting our understanding of regions and networks associated with placebo analgesia.
Methods:
Fifty-five healthy pain-free adults over 18 (M = 22.8 years, SD = 7.75) were recruited (65.5% women; 6...
Objectives
Chronic pain results in significant impairment in older adults, yet some individuals maintain adaptive functioning. Limited research has considered the role of positive resources in promoting resilience among older adults. Likewise, these factors have largely been examined independently. We aimed to identify resilience domains based upon...
Introduction:
Pain is commonly reported among those in treatment for substance use disorders (SUD) and is associated with poorer SUD treatment outcomes. The current study examined the trajectory of pain over the course of SUD treatment and associations with substance use outcomes.
Methods:
This observational study included adults seeking treatme...
Research suggests situational pain may motivate alcohol consumption, suggesting that pain may be an antecedent for problematic drinking behavior. In this pilot project, we assessed the effect of a painful thermal stimulus on drinking topography in a virtual reality bar environment using real alcohol-containing beverages. We also examined psychosoci...
Background:
Although recent literature provides promising support for the analgesic properties of alcohol, potential differences in alcohol analgesia as a function of chronic pain status are not well understood. Thus, this study examined chronic pain status as a potential moderator of alcohol analgesia and distinguished between multiple aspects of...
Introduction
Simply inspecting one’s own body can reduce clinical pain and magnification of body parts can increase analgesia. Thus, body perceptions seem to play an important role for analgesia. Conversely, pain may also affect bodily perceptions. Therefore, we evaluated the effects of clinical and/or experimental pain on perceived hand size in fi...
Background:
Minority and older adult patients remain underrepresented in cancer clinical trials (CCTs). The current study sought to examine sociodemographic inequities in CCT interest, eligibility, enrollment, decline motivation, and attrition across two psychosocial CCTs for gynecologic, gastrointestinal, and thoracic cancers.
Methods:
Patients...
Chronic low back pain is the leading cause of disability among older adults. The impact of psychological factors, including high levels of stress, are associated with increased risk for pain. Despite the growing evidence suggesting that psychological well-being is associated with better health outcomes, limited research has examined positive psycho...
Background
The assessment of alcohol consumption during a drinking bout, known as drinking topography, may help improve understanding of biopsychosocial mechanisms underlying alcohol consumption. However, past studies have been limited by effort-intensive, time-consuming, and error-prone processes involved in collecting, organizing, and standardizi...
Study objectives:
To examine whether cognitive behavioral treatments for insomnia (CBT-I) and pain (CBT-P) lead to neural activation changes in response to pain in fibromyalgia.
Methods:
32 fibromyalgia patients (Mage=55.9, SD=12.2) underwent an experimental pain protocol during functional magnetic resonance imaging (fMRI) and completed 14-daily...
Insomnia is an adverse cancer outcome impacting mood, pain, quality of life, and mortality in cancer patients. Cognitive Behavioral Therapy (CBT) is an evidence-based treatment for diverse psychophysiological disorders, including pain and insomnia. Primarily studied in breast cancer, there is limited research on CBT within gynecology oncology. This...
Previous studies have identified decreases in pain-related activations after placebo induction. However, differences in functional connectivity (FC) of pain-related regions resulting from expectancy-based placebo induction have yet to be examined, limiting our understanding of regions and potential networks associated with placebo analgesia.Thirty-...
Objective:
The goal of this study was to determine whether the acute analgesic effects of alcohol intake are moderated by acute alcohol tolerance, characterized by differing subjective and neurobehavioral effects of a given blood alcohol concentration (BAC) depending on whether BAC is rising or falling.
Method:
Twenty-nine healthy drinkers (20 w...
Objective:
This study aimed to capture day-to-day changes in pain intensity in individuals with low back pain (LBP), which may be indicative of patients' ability to modulate their pain levels. A secondary aim was to explore the presence of latent subgroups characterized by pain level, intraindividual pain variability, and change in pain over a 14-...
Introduction:
Racial minorities are disproportionally affected by pain. Compared to non-Hispanic Whites (NHWs), non-Hispanic Blacks (NHBs) report higher pain intensity, greater pain-related disability, and higher levels of mood disturbance. While risk factors contribute to these disparities, little is known regarding how sources of resilience infl...
Fibromyalgia is a chronic widespread pain syndrome associated with hypersensitivity to nociceptive stimuli. This increased sensitivity of FM patients has been associated with central sensitization of dorsal horn neurons. Increasing evidence, however, suggests that the mechanisms of FM hypersensitivity not only affect pain but include light, smell,...
Pain is the number one reason for seeking medical attention, and a top contributor to healthcare costs in the United States. Considerable evidence highlights racial/ethnic disparities in pain with Latinx communities being disproportionally affected at higher rates. Compared to other ethnic minority groups, Latinx older adults are more socioeconomic...
Background
Pain may serve as an antecedent for alcohol use, increasing risk for hazardous drinking and associated consequences. Delayed onset muscle soreness (DOMS) induction produces clinically relevant but time-limited musculoskeletal pain. This study was conducted to determine whether DOMS induction on the dominant elbow flexors influenced alcoh...
[This corrects the article DOI: 10.3389/fpsyg.2019.01932.].
Introduction:
Approximately 50% of individuals with fibromyalgia (a chronic widespread pain condition) have comorbid insomnia. Treatment for these comorbid cases typically target pain, but growing research supports direct interventions for insomnia (eg, cognitive behavioural treatment for insomnia (CBT-I)) in these patients. Previous research sugg...
Background:
Pain and substance use are frequently comorbid and have been shown to exert bidirectional effects. Self-medication of pain and distress via substance use is common and can be understood via negative reinforcement, ultimately strengthening the pathway between pain to substance use over time. As such, a testable model of the potentially...
Depressive symptoms are common among individuals with chronic pain. Previous work suggests that chronic pain patients have difficulty regulating emotional responses, which is a risk factor for the development of major depressive disorder (MDD). Function of the mesocorticolimbic system, a neural network associated with reward processing, contributes...
Opioid use and sleep disruption are prevalent in fibromyalgia. Yet, the effects of opioids on physiological sleep in fibromyalgia are unclear. This study assessed associations between opioid use/dosage and polysomnographically assessed sleep in patients with fibromyalgia and insomnia (FMI) and examined moderating effects of age and pain. Participan...
Analgesic treatments that aim to eliminate pain display marginal success in relieving chronic pain and may increase pain vulnerability. Repeated exposure to pain may result in increased pain modulation via engagement of anti-nociceptive brain regions. It was hypothesized that repeated exposure to delayed onset muscle soreness (DOMS) would result in...
Objective: Assess clinical cue influences on risk assessment of cancer associated mucosal abnormalities.
Study Design: To differentiate lesions with a low-risk versus a high-risk for pre-, or malignancy, four cues were utilized: 1) color, 2) location, 3) induration, and–exploratory-pain. Combinations of color and location were presented through eig...
Background
Acute alcohol intoxication has wide‐ranging neurobehavioral effects on psychomotor, attentional, inhibitory, and memory‐related cognitive processes. These effects are mirrored in disruption of neural metabolism, functional activation, and functional network coherence. Metrics of intraregional neural dynamics such as regional signal varia...
Sleep and opioid medications used to treat insomnia and chronic pain are associated with adverse side effects (falls and cognitive disturbance). Although behavioural treatments such as cognitive behavioral therapy for insomnia (CBT‐I) and pain (CBT‐P) improve sleep and clinical pain, their effects on sleep and opioid medication use are unclear. In...
Background:
Traditional pain interventions limit fluctuations in pain sensation, which may paradoxically impair endogenous pain modulatory systems (EPMS). However, controlled exposures to clinically relevant pain (e.g. delayed onset muscle soreness, DOMS) may build capacity in the EPMS. Emerging evidence suggests regional signal variability (RSV)...
Background:
The nucleus accumbens (NAc) is a ventral striatal structure underlying reward, reinforcement, and motivation, with extensive anatomic and functional connections to a wide range of affective processing structures (medial prefrontal cortex (mPFC), amygdala, and insula). Characterizing how acute alcohol intake affects resting state functi...
Bias toward individuals with overweight/obesity (OV/OB) exists among health professionals and trainees with the potential to affect the quality of healthcare interactions. Given most research is adult-focused, this study aimed to examine the influence of weight status on clinical judgments in a pediatric context. Sixteen virtual human scenes repres...
Evidence supports the benefits of resilience among older adults with chronic pain. While numerous factors confer resilience, research has largely examined these measures in isolation, despite evidence of their synergistic effects. Conceptualizing resilience from a multisystem perspective may provide a deeper understanding of adaptive functioning in...
Quantitative sensory testing (QST) is used to systematically interrogate normal responding and alterations of nervous system function, including pain-related central sensitization (CS). However, up to now, QST of CS in human subjects has been mostly focused on temporal summation of second pain (TSSP), has been difficult to perform, and has been ass...
Objective:
Elevated body mass index (BMI), tobacco use, and sleep disturbance are common health concerns among women with gynecologic cancers. The extent to which these factors are associated with systemic inflammation in gynecologic cancers is unknown. This is a significant literature gap given that (a) chronic, systemic inflammation may mediate...
Purpose:
The purpose of this study was to examine mechanisms underlying disparities in pain management among patients with psychological comorbidities. Studies have consistently shown that health care providers, health care trainees, and laypeople are susceptible to biased assessment and treatment decisions for patients presenting with pain. Furth...
Background context:
Peripheral differences often do not adequately account for variation in reports of pain intensity in people with musculoskeletal pain.
Purpose:
Here we sought to determine the extent to which structural differences in the brain (grey matter density) of pain free individuals might relate to subsequent pain (or lack thereof) af...
Opioid use and sleep disruption are prevalent in fibromyalgia. Yet, the effects of opioids on physiological sleep in fibromyalgia are unclear. This study assessed associations between opioid use/dosage and polysomnographically assessed sleep in patients with fibromyalgia and insomnia (FMI) and examined moderating effects of age and pain. Participan...
Prolonged, disabling fatigue is the hallmark of chronic fatigue syndrome (CFS). Previous neuroimaging studies have provided evidence for nervous system involvement in CFS etiology, including perturbations in brain structure/function. In this arterial spin labeling (ASL) MRI study, we examined variability in cerebral blood flow (CBFV) and heart rate...
We conducted a randomized controlled trial of an individually-tailored, virtual perspective-taking intervention to reduce race and socioeconomic (SES) disparities in providers' pain treatment decisions. Physician residents and fellows (n=436) were recruited from across the United States for this two-part online study. Providers first completed a bi...
Introduction
Patients with Fibromyalgia (FM) are frequently prescribed opioids to treat chronic pain and sleep disturbances. However, opioid use is associated with self-reported/actigraphic sleep disruption, and research suggests opioid effects may depend on age, dosage, or pain intensity. Whether opioid use/dosage affect physiological sleep (polys...
Introduction
Parkinson’s disease (PD) is clinically characterized by chronic, progressive impairments in motor and non-motor functioning. The non-motor symptoms (NMSs) of PD include mood disturbances, sleep difficulties, and chronic pain. Dopaminergic cell loss plays a large role in explaining the prevalence of affective disorders in PD, as symptom...
Introduction
CBTi improves sleep and pain in patients with chronic pain, but significant pain effects are rarely found in individual trials - possibly due to floor effects as trials rarely screen for baseline pain intensity (bPI). The present study examines whether bPI moderates the effect of CBTi on sleep and pain in adults with FM.
Methods
Adult...
Introduction
Over recent years, there has been growing interest in the role of positive, psychological resources that promote resilience and optimal functioning in chronic pain. Although multiple factors comprise resilience, hope is a strength-based motivational state known to contribute to positive psychosocial adjustment and adaptive pain coping....
The purpose of the study was to investigate the influence of weight bias and demographic characteristics on the assessment of pediatric chronic pain. Weight status, race, and sex were manipulated in a series of virtual human (VH) digital images of children. Using a web-based platform, 96 undergraduate students with health care-related majors (e.g.,...
Objectives
To examine the effects of cognitive behavioral treatments for insomnia (CBT-I) and pain (CBT-P) in patients with comorbid fibromyalgia and insomnia.
Methods
113 patients (Mage=53, SD=10.9) were randomized to eight sessions of CBT-I (n=39), CBT-P (n=37), or a waitlist control (WLC, n=37). Primary [self-reported sleep onset latency (SOL),...
Objective.:
Pain is common among women with gynecologic cancer and contributes to depressed mood, sleep disturbances, and likelihood of future chronic pain. Little is known about how psychosocial factors are associated with central sensitization of pain in gynecologic cancer. This study examined relations among depressive symptoms, sleep, subjecti...
Background:
Adult literature documents that healthcare providers rely on patient characteristics, such as age, race, and weight, when making clinical decisions. However, little research has examined these biases among pediatric populations. This study aimed to examine the impact of child and maternal weight and race on clinical decision-making of...
Study objectives:
Individuals with primary insomnia often have poorer self-reported sleep than objectively measured sleep, a phenomenon termed negative sleep discrepancy. Recent studies suggest that this phenomenon might differ depending on comorbidities. This study examined sleep discrepancy, its night-to-night variability, and its correlates in...
Objective:
Research documenting the impact of opioid use on sleep among individuals with chronic pain has been mixed. This study aimed to determine if pain intensity moderates the association between opioid use and insomnia symptoms among adults with comorbid symptoms of insomnia and chronic widespread pain.
Methods:
Participants (N = 144; 95% f...
Study objectives:
Insomnia frequently co-occurs with fibromyalgia, which is associated with gray matter atrophy. We examined the effect of cognitive behavioral therapy for insomnia (CBT-I) and pain (CBT-P) on cortical thickness.
Methods:
Patients with fibromyalgia and insomnia underwent MRI before and after random assignment to CBT-I (n = 14), C...
Chronic fatigue syndrome (CFS) is a disorder associated with fatigue, pain, and structural/functional abnormalities seen during magnetic resonance brain imaging (MRI). Therefore, we evaluated the performance of structural MRI (sMRI) abnormalities in the classification of CFS patients versus healthy controls and compared it to machine learning (ML)...
Sleep diary and actigraphy assessments of insomnia symptoms in patients with fibromyalgia (FM) are often discrepant. We examined whether opioid dose and age interact in predicting magnitude or direction of discrepancies. Participants (N = 199, M = 51.5 years, SD = 11.7) with FM and insomnia completed 14 days of diaries and actigraphy. Multiple regr...
Introduction:
Gender-related stereotypes of pain may account for some assessment and treatment disparities among patients. Among health care providers, demographic factors including gender and profession may influence the use of gender cues in pain management decision-making. The Gender Role Expectations of Pain Questionnaire was developed to asse...
Temporomandibular disorder (TMD) is an orofacial pain condition often resulting in functional impairment and pain-related disability. Given the relationship between stress and pain in TMD, it has been suggested that dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis (e.g., cortisol responsivity) could contribute to the onset and mainten...
Background:
Vulvodynia is a poorly characterized condition with multiple treatment options that have been described as largely ineffective in research settings.
Aim:
To describe treatment patterns in women enrolled in the National Vulvodynia Registry and determine if there is an association between selected treatments and patient-reported outcom...
Purpose: One hallmark of chronic fatigue syndrome (ME/CFS) is task related worsening of fatigue. Global brain hypoperfusion, abnormal regional activation, and altered functional connectivity of brain areas associated with cognition and memory have been reported but remain controversial.
Methods: We enrolled 17 female participants fulfilling the CDC...
The current study examined between- and within-subject variability in pain-related symptoms as predictors of pain and fatigue, and identified patient subgroups on the basis of symptom variability characteristics. Two hundred fifty-six fibromyalgia (FM) patients completed daily diaries up to a period of 154 days and reported on symptoms of pain inte...
Objective:
Case presentations (vignettes) were completed by dentists in the National Dental Practice-Based Research Network study "Decision Aids for the Management of Suspicious Occlusal Caries Lesions (SOCLs)". The objective was to determine dentists' decision strategies for SOCLs).
Methods:
107 dentists viewed a series of 16 vignettes that rep...
Individuals with chronic pain are at risk for sleep disruption and heavy alcohol use, yet the daily associations between these behaviours are not well characterized. This study aimed to determine the extent to which alcohol use affects insomnia symptoms and vice versa in adults reporting symptoms of chronic pain. Participants were 73 individuals (9...
Chronic low back pain (LBP) is a common and costly musculoskeletal pain condition, and effective treatment of LBP represents a significant goal of physical therapists. Establishing a targeted track of treatment for patients with LBP at high risk for chronicity that is focused on modifiable prognostic factors could have significant personal and soci...
Objective:
Short sleep duration and insomnia have been linked to higher pain and an increased risk of developing chronic pain, but relatively little research has examined the contribution of sleep disordered breathing (SDB) to pain. This study examined the unique contributions of SDB and insomnia to chronic pain.
Subjects:
Adult patients referre...
Background
Vulvodynia classification is based on the sensory dimensions of pain and does not include psychological factors associated with the pain experience and treatment outcomes. Previous work has shown that individuals with chronic pain can be classified into subgroups based on pain sensitivity, psychological distress, mood, and symptom severi...
Objective
Patients with chronic fatigue syndrome (CFS) complain of long-lasting fatigue and pain which are not relieved by rest and worsened by physical exertion. Previous research has implicated metaboreceptors of muscles to play an important role for chronic fatigue and pain. Therefore, we hypothesized that blocking impulse input from deep tissue...
Introduction:
Chronic fatiguing illnesses like cancer, multiple sclerosis, chronic fatigue syndrome, or depression are frequently associated with comorbidities including depression, pain, and insomnia, making the study of their neural correlates challenging. To study fatigue without such comorbidities, functional connectivity (FC) analyses were us...
Objectives: The purposes of this study were to (1) determine whether disclosure of having received a placebo treatment following participation in a randomized manual therapy trial resulted in changes in negative mood or attitudes towards health care and the provider and (2) examine the association between changes in mood or attitude and changes in...
Chronic musculoskeletal pain condition often shows poor correlations between tissue abnormalities and clinical pain. Therefore, classification of pain conditions like chronic low back pain, osteoarthritis, and fibromyalgia depends mostly on self report and less on objective findings like X-ray or magnetic resonance imaging (MRI) changes. However, r...
Sensory decline is viewed as an inevitable consequence of the aging process. However, reports of declines have not been a consistent finding across the sensory systems. Reports from psychophysical studies indicate that the most common declines with aging are in vision and audition and, too a lesser degree, olfaction and gustation. Findings for the...
Human pain reports are viewed by many as ‘subjective assessments of otherwise unmeasurable experiences’; however, various strategies have been developed to provide reliable and valid measures of clinical pain. Pain is a multidimensional experience that can be described in terms of both sensory intensity and unpleasantness qualities and can be furth...
Background
Research has demonstrated the efficacy of analgesic placebos. The manner in which they are usually delivered deceptively raises questions about their impact on recipients. However, there has been little empirical investigation into the potential harms of analgesic placebo. Moreover, the role of deception in determining the magnitude of a...
Pain judgments are the basis for pain management. The purpose of this study was to assess Black and White participants' race-related pain stereotypes. Undergraduates (n = 551) rated the pain sensitivity and willingness to report pain for the typical Black person, White person, and themselves. Participants, regardless of race, rated the typical Whit...
Studies using arterial spin labelling (ASL) have shown that individuals with chronic fatigue syndrome (CFS) have decreased regional cerebral blood flow, which may be associated with changes in functional neural networks. Indeed, recent studies indicate disruptions in functional connectivity (FC) at rest in chronically fatigued patients including pe...
The default mode network (DMN) has been proposed as a biomarker for several chronic pain conditions. DMN functional connectivity (fcMRI) is typically examined during resting-state fMRI, in which participants are instructed to let thoughts wander. However, factors at the time of data collection (e.g., negative mood) that might systematically impact...
Unlabelled:
Previous studies have not examined the assessment of chronic low back pain (CLBP) and pain-related anxiety from a fear avoidance model through the use of motion-capture software and virtual human technologies. The aim of this study was to develop and assess the psychometric properties of an interactive, technologically based hierarchy...
Disparities in health care associated with patients' gender, race, and age are well documented. Previous studies using virtual human (VH) technology have demonstrated that provider characteristics may play an important role in pain management decisions. However, these studies have largely emphasized group differences. The aims of this study were to...
The dorsolateral prefrontal cortex (DLPFC) is implicated in pain modulation via multiple psychological processes. Recent non-invasive brain stimulation studies suggest that interhemispheric DLPFC connectivity influence pain tolerance and discomfort by altering interhemispheric inhibition. The structure and role of interhemispheric DLPFC connectivit...
Objectives
Pain is often poorly managed, highlighting the need to better understand and treat patients’ pain. Research suggests that pain is assessed and treated differently depending on patient sex, race, and/or age. Perspective-taking, whereby one envisions the perspective of another, has been found to reduce racial disparities in pain management...
Perspective:
This article highlights how patients with chronic pain may be open to placebo interventions, particularly adjunct/complementary treatments, when provided education on the neurobiological and psychological mechanisms underlying placebo effects. Study findings highlight ethically acceptable ways to potentially utilize placebo factors to...
