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Pain illusion

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https://www.readbyqxmd.com/read/28768538/pulsed-radiofrequency-or-anterior-neurectomy-for-anterior-cutaneous-nerve-entrapment-syndrome-acnes-the-pulse-trial-study-protocol-of-a-randomized-controlled-trial
#1
Robbert C Maatman, Monique A H Steegers, Oliver B A Boelens, Toine C Lim, Hans J van den Berg, Sandra A S van den Heuvel, Marc R M Scheltinga, Rudi M H Roumen
BACKGROUND: Some patients with chronic abdominal pain suffer from an anterior cutaneous nerve entrapment syndrome (ACNES). This somewhat illusive syndrome is thought to be caused by the entrapment of end branches of the intercostal nerves residing in the abdominal wall. If ACNES is suspected, a local injection of an anesthetic agent may offer relief. If pain is recurrent following multiple-injection therapy, an anterior neurectomy entailing removal of the entrapped nerve endings may be considered...
August 2, 2017: Trials
https://www.readbyqxmd.com/read/28744055/the-influence-of-trait-anxiety-and-illusory-kinesthesia-on-pain-threshold
#2
Ryota Imai, Michihiro Osumi, Tomoya Ishigaki, Shu Morioka
[Purpose] It has also been reported that decreased activity in the reward pathway causes a decrease in brain activity in the descending pain control system in people with high trait anxiety. Activation of this system is dependent on both the reward pathway and motor areas. Recently, studies have also shown that motor areas are activated by illusory kinesthesia. It was aimed to explore whether anxiety trait modulates the influence of illusory kinesthesia on pain threshold. [Subjects and Methods] The pain threshold and trait anxiety at rest before vibratory tendon stimulation (the task) were measured...
July 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28690901/use-of-cone-beam-computed-tomography-in-the-diagnosis-and-treatment-of-an-unusual-canine-abnormality
#3
Archana Gopalakrishnan, K Unnikrishna, Anita Balan, P S Haris
Diagnosis and treatment planning are important for successful endodontic treatment. We report a 24-year old male who presented to the Government Dental College in Kozhikode, Kerala, India, in 2015 with pain in his right upper canine. A digital periapical radiograph indicated the presence of a supernumerary tooth superimposing the root of the canine. However, cone-beam computed tomography (CBCT) confirmed that the supernumerary tooth was an illusion and that the canine root had a sharp invagination involving the labial and pulpal dentin surfaces, with evidence of periapical bone destruction...
May 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28644200/electrical-stimulations-of-the-human-insula-their-contribution-to-the-ictal-semiology-of-insular-seizures
#4
Laure Mazzola, François Mauguière, Jean Isnard
INTRODUCTION: Stereotactic stimulations of the insular cortex through intracranial electrodes aim at characterizing the semiology of insular seizures. These stimulations, carried out in the context of Stereo-Electro-Encephalography (SEEG) during presurgical monitoring of epilepsy, reproduce the ictal symptoms observed during the development of insular seizures. METHODS: The authors reviewed the results of insular stimulations performed in 222 patients admitted between 1997 and 2015 for presurgical SEEG exploration of atypical temporal or perisylvian epilepsy...
July 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28573748/conditioned-pain-modulation-dampens-the-thermal-grill-illusion
#5
D E Harper, M Hollins
BACKGROUND: The thermal grill illusion (TGI) refers to the perception of burning heat and often pain that arises from simultaneous cutaneous application of innocuous warm and cool stimuli. This study utilized conditioned pain modulation (CPM) to help elucidate the TGI's underlying neural mechanisms, including the debated role of ascending nociceptive signals in generating the illusion. METHODS: To trigger CPM, subjects placed the left hand in noxious cold (6 °C) water before placing the right volar forearm onto a thermal grill...
June 2, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28455248/placebo-analgesia-from-a-rubber-hand
#6
Matthew J Coleshill, David N George, Giuliana Mazzoni
Placebo analgesia, reductions in pain after administration of an inert treatment, is a well documented phenomenon. We report, to our knowledge, the first demonstration that placebo analgesia can be experienced when a sham analgesic is applied onto a rubber hand. The effect was obtained by exploiting the rubber hand illusion, in which ownership is felt over a rubber arm that is unattached to the body. Under conditions of synchronous as well as asynchronous visuotactile stimulation, a thermal pain stimulus was delivered on the real arm of 20 participants and seemingly also on the rubber arm, before and after applying a sham analgesic and a control cream only to the rubber arm...
April 26, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28318305/on-demand-driver-vigilance-enhancement-without-explicit-drowsiness-detection-further-analysis-of-the-pilot-study-results
#7
R Michael Van Auken, Brad K Hagoski, Dean P Chiang, Shane Chang
OBJECTIVE: A new active safety concept that engages the driver's psychosensory pain-processing mechanism to automatically trigger vigilance enhancement on-demand was proposed in Chang (2012). This concept is based on the hypothesis that a human's pain threshold will decline as he or she becomes drowsy, consequently triggering the vigilance enhancer. The objective of this pilot study was to develop methods to test this hypothesis, the results of which could lead to further refinement of the hypothesis and methods, with the ultimate goal of developing new active safety concepts that exploit the driver's endogenous psychosensory pain-processing mechanisms...
May 29, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28294069/wallet-neuritis-an-example-of-peripheral-sensitization
#8
Md Abu Bakar Siddiq, Israt Jahan, Sam Masihuzzaman
BACKGROUND: Wallet neuritis is an example of extra-spinal tunnel neuropathy concerning sciatic nerve. Its clinical appearance often gets confused with sciatica of lumbar spine origin. Wallet-induced chronic sciatic nerve constriction produces gluteal and ipsilateral lower extremity pain, tingling, and burning sensation. It was Lutz, first describing credit-card wallet sciatica in an Attorney, surfaced on Journal of American Medical Association (JAMA), 1978; however, the condition has not been well-studied in various other occupations...
March 9, 2017: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/28284239/integrating-self-localization-proprioception-pain-and-performance
#9
Valeria Bellan, Sarah B Wallwork, Alberto Gallace, Charles Spence, G Lorimer Moseley
The ability to know where our own body and body parts are in space is often taken for granted, yet it is of fundamental importance for the majority of our everyday activities, let alone high performance activities such as dancing. This review focuses on the concept of self-localization, the monitoring of the space surrounding one's body, and the disruptions that occur in the presence of pain. A conceptual model is presented of the cortical body matrix with which to consider self-localization; also provided are its historical context, underlying assumptions, and current limitations...
March 1, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28243537/using-visuo-kinetic-virtual-reality-to-induce-illusory-spinal-movement-the-moovi-illusion
#10
Daniel S Harvie, Ross T Smith, Estin V Hunter, Miles G Davis, Michele Sterling, G Lorimer Moseley
BACKGROUND: Illusions that alter perception of the body provide novel opportunities to target brain-based contributions to problems such as persistent pain. One example of this, mirror therapy, uses vision to augment perceived movement of a painful limb to treat pain. Since mirrors can't be used to induce augmented neck or other spinal movement, we aimed to test whether such an illusion could be achieved using virtual reality, in advance of testing its potential therapeutic benefit. We hypothesised that perceived head rotation would depend on visually suggested movement...
2017: PeerJ
https://www.readbyqxmd.com/read/28230460/meditation-and-hypnosis-two-sides-of-the-same-coin
#11
Enrico Facco
Hypnosis and meditation, as a whole, form a heterogeneous complex of psychosomatic techniques able to control mind and body regulation. Hypnosis has been pragmatically used for limited therapeutic targets, while Eastern meditation has much wider philosophical and existential implications, aiming for a radical liberation from all illusions, attachments, suffering and pain. The available data on the history, phenomenology, and neuropsychology of hypnosis and meditation show several common features, such as the following: (a) induction based on focused attention; (b) capability to reach an intentional control of both biologic-somatic activities and conscious-unconscious processes;...
April 2017: International Journal of Clinical and Experimental Hypnosis
https://www.readbyqxmd.com/read/28222382/corporeal-illusions-in-chronic-spinal-cord-injuries
#12
Michele Scandola, Salvatore Maria Aglioti, Renato Avesani, Gianettore Bertagnoni, Anna Marangoni, Valentina Moro
While several studies have investigated corporeal illusions in patients who have suffered from a stroke or undergone an amputation, only anecdotal or single case reports have explored this phenomenon after spinal cord injury. Here we examine various different types of bodily misperceptions in a comparatively large group of 49 people with spinal cord injury in the post-acute and chronic phases after the traumatic lesion onset. An extensive battery of questionnaires concerning a variety of body related feelings was administered and the results were correlated to the main clinical variables...
March 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28108385/seeing-an-embodied-virtual-hand-is-analgesic-contingent-on-colocation
#13
Birgit Nierula, Matteo Martini, Marta Matamala-Gomez, Mel Slater, Maria V Sanchez-Vives
Seeing one's own body has been reported to have analgesic properties. Analgesia has also been described when seeing an embodied virtual body colocated with the real one. However, there is controversy regarding whether this effect holds true when seeing an illusory-owned body part, such as during the rubber-hand illusion. A critical difference between these paradigms is the distance between the real and surrogate body part. Colocation of the real and surrogate arm is possible in an immersive virtual environment, but not during illusory ownership of a rubber arm...
January 18, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28074671/effect-of-illusory-kinesthesia-on-hand-function-in-patients-with-distal-radius-fractures-a-quasi-randomized-controlled-study
#14
Ryota Imai, Michihiro Osumi, Tomoya Ishigaki, Shu Morioka
OBJECTIVES: We investigated the effects of the illusion of motion through tendon vibration on hand function in patients with distal radius fractures. SETTING: Kawachi General Hospital, Japan. SUBJECTS: A total of 22 patients with distal radius fractures were divided into either an illusory kinesthesia group ( n = 11) or a control group ( n = 11). INTERVENTION: We performed the intervention for seven consecutive days after surgery...
January 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28008258/incidence-risk-factors-and-phenomenological-characteristics-of-postoperative-delirium-in-patients-receiving-intravenous-patient-controlled-analgesia-a-prospective-cohort-study
#15
Yao Tsung Lin, Kuo Mao Lan, Li-Kai Wang, Chin-Chen Chu, Su-Zhen Wu, Chia-Yu Chang, Jen-Yin Chen
BACKGROUND: Intravenous patient-controlled analgesia (IVPCA) is a common method of relieving pain which is a risk factor of postoperative delirium (POD). However, research concerning POD in IVPCA patients is limited. OBJECTIVE: We aimed to determine the incidence, risk factors, and phenomenological characteristics of POD in patients receiving IVPCA. METHODS: A prospective, cohort study was conducted in post-general anesthesia IVPCA patients aged ≥60 years...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27862179/the-use-of-a-battery-of-pain-models-to-detect-analgesic-properties-of-compounds-a-two-part-four-way-crossover-study
#16
Pieter Okkerse, Guido van Amerongen, Marieke L de Kam, Jasper Stevens, Richard P Butt, Rachel Gurrell, Albert Dahan, Joop M van Gerven, Justin L Hay, Geert Jan Groeneveld
AIM: The aim was to investigate the ability of a battery of pain models to detect analgesic properties of commonly used analgesics in healthy subjects. METHODS: The battery consisted of tests eliciting electrical, mechanical and thermal (contact heat and cold pressor)-pain and included a UVB model, the thermal grill illusion and a paradigm of conditioned pain modulation. Subjects were administered fentanyl 3 μg kg(-1) , phenytoin 300 mg, (S)-ketamine 10 mg and placebo (part I), or imipramine 100 mg, pregabalin 300 mg, ibuprofen 600 mg and placebo (part II)...
May 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27816764/valence-and-arousal-value-of-visual-stimuli-and-their-role-in-the-mitigation-of-chronic-pain-what-is-the-power-of-pictures
#17
Maryam Shaygan, Andreas Böger, Birgit Kröner-Herwig
The present study investigated the pain-reducing effects of various pictures in a sample of 88 patients receiving inpatient treatment for chronic pain. We investigated whether the pain-attenuating effects of the pictures were mediated by picture valence, arousal, or change in subjective social support. The study was carried out over 4 consecutive days. Patients were presented with photographs of loved ones, strangers, landscapes, or optical illusions via digital albums and were asked to rate their pain intensity and their sensory and affective experience of pain immediately before and after viewing the pictures...
November 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27742754/obsessionality-modulating-the-encounter-with-emotional-truth-and-the-aesthetic-object
#18
Avner Bergstein
Experiences with autistic and primitive mental states have significant implications for our understanding of obsessionality. Consequently, obsessionality is seen as an attempt at a massive simplification of experience, in order to deal with the pain inherent in the encounter with intense emotional experience and with the separateness of an enigmatic object that eludes one's omnipotent control. Moreover, early loss and a precocious awareness of separateness often play roles in the withdrawal to obsessional thinking and verbosity, and to an illusion of omnipotent control of the object...
October 14, 2016: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/27676814/the-effects-of-mirror-therapy-on-pain-and-motor-control-of-phantom-limb-in-amputees-a-systematic-review
#19
Jessie Barbin, Vanessa Seetha, Jean-Marie Casillas, Jean Paysant, Dominic Perennou
OBJECTIVE: Phantom limb pain (PLP) is a major problem after limb amputation. Mirror therapy (MT) is a non-pharmacological treatment using representations of movement, the efficacy of which in reducing PLP remains to be clarified. Here, we present the first systematic review on MT efficacy in phantom limb pain (PLP) and phantom limb movement (PLM) in amputees (lower or upper limb). MATERIAL/PATIENTS AND METHODS: A search on MEDLINE, COCHRANE DATABASE and EMBASE, crossing the key words "phantom limb" and "mirror therapy" found studies which were read and analyzed according the PRISMA statement...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27609074/-unavoidable-satisfactions-the-analyst-s-pleasure
#20
Michael Shulman
Analysts have often described their work as depriving, painful, and hard to endure, while its pleasures have been the subject of little commentary. The real history and ongoing temptations of boundary violation long ago made the gratifications of psychoanalytic work a matter of anxiety. Analysts' pleasure in their work was problematized. Some of this problematizing is necessary because of real risk, but much of it is not only unnecessary but misleading and destructive. Psychoanalysts pursue achievement of a unique form of human intimacy, yet acquired habits of professional modesty and humility have encouraged the illusion that analyzing can occur without desire or ambition on the analyst's part...
August 2016: Journal of the American Psychoanalytic Association
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