PubMed Journals Articles About "Administration Atropine Measurement Skin Conductance With Pain Detector" RSS

19:57 EST 22nd January 2019 | BioPortfolio

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Showing "Administration atropine Measurement skin conductance with Pain detector" PubMed Articles 1–25 of 14,000+

Measurement of skin conductance responses to evaluate procedural pain in the perioperative setting.

Background and aims The subjective nature of pain makes objective, quantitative measurements challenging. The current gold standard for evaluating pain is patient self-reporting using the numeric rating scale (NRS) or Visual Analog Scale. Skin conductance responses per second (SCR) measured in the palmar region reflect the emotional part of the autonomous nervous system. SCR ≥0.20 have been shown to indicate moderate or severe pain in the postoperative setting. We examined whether SCR can detect procedure...

Measurement of Skin Surface pH.

The acidic nature of the skin surface was recognised more than a century ago and has been measured since 1928. Several non-invasive methods for measuring skin surface pH have been developed ever since and have contributed to our understanding of healthy and diseased skin. This chapter summarises the endogenous physiological, exogenous and environmental factors that influence skin surface pH and its measurement as well as the different measurement methods for skin surface pH, with specific emphasis on the cl...

Influence of Relative Humidity on Electrodermal Levels and Responses.

Electrodermal activity (EDA) is a widely used measure in psychophysiological research, and its use in wearable devices has grown in recent times. It is recommended to have proper conditions for EDA measurement, and skin hydration is one factor that has a significant influence. It is, however, not known to what extent the ambient humidity influences the recording. This study explored the influence of relative humidity (RH) on EDA levels, and also the responses using a new technique for simultaneous recording...

Psoriasis-Associated Cutaneous Pain: Etiology, Assessment, Impact, and Management.

Cutaneous pain, a very broad, subjective, and complex symptom, is prevalent in patients with psoriasis. It is prompted by neurogenic inflammation and augmented by physical and psychosocial stress. Many psoriasis patients are troubled by aching, burning, stinging, tenderness, cramping, and tingling in their skin. However, there lacks a thorough and verified metric that allows patients to adequately report their unique skin pain experiences. Limited literature exists that aims to understand cutaneous pain in ...

Mobility Function and Recovery After Stroke: Preliminary Insights From Sympathetic Nervous System Activity.

Poststroke hemiparesis increases the perceived challenge of walking. Perceived challenge is commonly measured by self-report, which is susceptible to measurement bias. A promising approach to objectively assess perceived challenge is measuring sympathetic nervous system (SNS) activity with skin conductance to detect the physiological stress response. We investigated the feasibility of using skin conductance measurements to detect task-related differences in the challenge posed by complex walking tasks in ad...

Skin Conductance, Heart Rate and Aggressive Behavior Type.

The current study tested the association between physiology and aggressive behavior type in a large sample of University students (N = 509). Measures of aggression were gathered with the Reactive and Proactive Aggression Questionnaire. Analyses used raw aggressive behavior type scores and residualized measures of aggressive behavior type, which account for the overlap between reactive and proactive aggression. Measures of physiology included skin conductance and heart rate, both at rest and in response ...

Do pain measurement instruments detect the effect of pain-reducing interventions in neonates? A systematic review on responsiveness.

The effectiveness of pain-reducing interventions in newborns can only be determined if pain measurement instruments are responsive; i.e. able to detect a decrease in pain intensity after the pain-reducing intervention. This review assesses the methodological quality of studies on this measurement property - the responsiveness. We searched the literature published until January 2018 for validation studies of pain measurement instruments focusing on responsiveness to pain-reducing treatment in neonates. Metho...

Skin-to-skin contact during eye examination did not reduce pain compared to standard care with parental support in preterm infants.

We compared the pain relieving effect of skin-to-skin contact versus standard care in the incubator during screening for retinopathy of prematurity.

Scaling properties of pain intensity ratings in paediatric populations using the Faces Pain Scale-revised: Secondary analyses of published data based on the item response theory.

The Faces Pain Scale-revised (FPS-r) has been developed as an interval scale. For other pain measurement instruments, several studies found evidence for and against an interval level of measurement.

Evaluating Patient's Understanding of Pain Neurophysiology: Rasch Analysis of the Neurophysiology of Pain Questionnaire.

Educating patients about the neurobiological basis of their pain experience is now an important part of managing patients with pain disorders. The aim of this study was to evaluate the measurement properties of the Neurophysiology of Pain Questionnaire (NPQ) in a population seeking osteopathy treatment for both acute and chronic musculoskeletal pain complaints.

Small conductance calcium activated potassium (SK) channel dependent and independent effects of riluzole on neuropathic pain-related amygdala activity and behaviors in rats.

Chronic neuropathic pain is an important healthcare issue with significant emotional components. The amygdala is a brain region involved in pain and emotional-affective states and disorders. The central amygdala output nucleus (CeA) contains small-conductance calcium-activated potassium (SK) channels that can control neuronal activity. A clinically available therapeutic, riluzole can activate SK channels and may have antinociceptive effects through a supraspinal action. We tested the hypothesis that riluzol...

Generalization and extinction of concept-based pain-related fear.

In chronic pain, pain-related fear seems to overgeneralize to safe stimuli, thus contributing to excessive fear and avoidance behavior. Evidence shows that pain-related fear can be acquired and generalized based on conceptual knowledge. Using a fear conditioning paradigm, we investigated whether this concept-based pain-related fear could also be extinguished. During acquisition, exemplars of one action category (conditioned stimuli; CSs) were followed by pain (CS+; e.g. opening boxes), whereas exemplars of ...

A method for determining density based on gamma ray and fast neutron detection using a CsLiYCl detector in neutron-gamma density logging.

With the increasing demand for radioisotope-free operations, pulsed neutron-gamma density (NGD) has become increasingly important for logging-while-drilling (LWD) development. However, current NGD tools, adopting the multiple-detector array design, are not conducive to the simplification of instrument design and measurement system. To break obstacles, based on the fast neutron-gamma coupled theory, a new density measurement method was proposed. Further, combined with the neutron-gamma simultaneous detection...

Specific quantification of atropine using molecularly imprinted polymer on graphene quantum dots.

Herein, development of a reliable and specific fluorometric assay was disclosed for the sensitive detection of atropine. The method was designed using the surface molecularly imprinted polymer on high fluorescent graphene quantum dots (GQDs). Molecularly imprinted polymer capped GQDs (MIP-GQDs) were prepared through the common co-polymerization reaction of 3-(3-aminopropyl) triethoxysilane (APTES) and tetraethyl orthosilicate (TEOS), act as the main functional and cross-linking monomers, respectively. The u...

Gender, Age, and Ethnicity as Factors That Can Influence Skin pH.

Several studies have generally described the existence of differences of skin surface pH according to gender, age, and ethnicity, but these studies have reported inconsistent results, depending on anatomical sites, methods, and time of measurement. Overall, it could be summarized that female sex, younger age, and black skin have a lower skin pH compared to male sex, older age, and white skin.

Electrodermal Activity Monitoring During Painful Stimulation in Sedated Adult Intensive Care Unit Patients: a Pilot Study.

Introduction-Aim: Newer methods, such as infrared digital pupillometry and electrodermal activity (EDA) measurement have been suggested as good alternatives for analgesia monitoring in critically ill patients. This study analyzed EDA changes due to pain stimulus in sedated adult critical care patients Methods: Skin conductance variability, selected hemodynamic and respiratory parameters, Bispectral index (BIS) and ambient noise level, were monitored during 4 hour routine daytime in an adult ICU. 4h-Measurem...

Influence of cognitive stance and physical perspective on subjective and autonomic reactivity to observed pain and pleasure: An immersive virtual reality study.

Observing others' pain may induce a reaction called personal distress that may be influenced by top-down (imagine self or other in pain, i.e., self- vs other-oriented stance) and bottom-up (physical perspective of those who suffer, i.e., first vs third person perspective- 1PP vs 3PP) processes. The different contributions of these processes have not been teased apart. By capitalizing on the power of Immersive Virtual Reality, we explored how behavioural (subjective ratings) and physiological reactivity (ski...

A high dynamic range optical detector for measuring single photons and bright light.

Detecting light is fundamental to all optical experiments and applications. At the single photon level, the quantized nature of light requires specialised detectors, which typically saturate when more than one photon is incident. Here, we report on a massively-multiplexed single-photon detector, which exploits the saturation regime of a single click detector to exhibit a dynamic range of 123 dB, enabling measurement from optical energies as low as 10 photons per pulse to ∼ 2.5 × 10photons per pulse. This...

Amygdaloid administration of tetrapentylammonium attenuates development of pain and anxiety-like behavior following peripheral nerve injury.

The central amygdaloid nucleus (CeA) is involved in processing and descending regulation of pain. Amygdaloid mechanisms underlying pain processing and control are poorly known. Here we tested the hypothesis that perioperative CeA administration of tetrapentylammonium (TPA), a non-selective THIK-1 channel blocker and thereby inhibitor of microglia, attenuates development of chronic neuropathic pain and comorbid anxiety-like behavior.

EEMCO-European group on efficacy measurement and evaluation of cosmetics and other products.

Evaluation of changes in selected skin parameters under the influence of extremely low temperature.

The aim of the work was to evaluate changes in selected skin parameters under the influence of low temperature. The tests were conducted on a group of 20 women using whole-body cryotherapy. The average age of participants was 58.7 ± 7.54 years; the average body weight 77.84 ± 16.01 kg, the mean BMI 30.14 ± 5.81, and the average body height 160.7 ± 6.48 cm. The tested parameters included hydration, lubrication, temperature, and pH of the skin. The skin measurements were made on the fi...

Effect of chronic exercise on myocardial electrophysiological heterogeneity and stability. Role of intrinsic cholinergic neurons: A study in the isolated rabbit heart.

A study has been made of the effect of chronic exercise on myocardial electrophysiological heterogeneity and stability, as well as of the role of cholinergic neurons in these changes. Determinations in hearts from untrained and trained rabbits on a treadmill were performed. The hearts were isolated and perfused. A pacing electrode and a recording multielectrode were located in the left ventricle. The parameters determined during induced VF, before and after atropine (1μM), were: fibrillatory cycle length (...

Reproducibility of the durometer and myoton devices for skin stiffness measurement in healthy subjects.

Clinical assessment of skin stiffness is unreliable in many applications. The durometer, an industrial device to measure hardness, has previously been applied in scleroderma. The Myoton is a noninvasive handheld device for assessing soft tissue biomechanical parameters.

Can exercise-induced muscle damage be related to changes in skin temperature?

Measurement of skin temperature using infrared thermography has become popular in sports, and has been proposed as an indicator of exercise-induced muscle damage after exercise. However, the relationship between skin temperature and exercise-induced muscle damage is still unclear. Here we set out to investigate the relationship between skin temperature and exercise-induced muscle damage.

Short-term effects of low-concentration atropine eye drops on pupil size and accommodation in young adult subjects.

A single eye drop containing 0.01% atropine every evening has previously been found to inhibit myopia progression in young adults. We have tested the short-term effects of very low-dose atropine eye drops on pupil sizes and accommodation in young adult subjects.

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