Chronically painful conditions are frequently associated with sleep disturbances, i.e. changes in sleep continuity and sleep architecture as well as increased sleepiness during daytime. A new hypothesis, which has attracted more and more attention, is that disturbances of sleep cause or modulate acute and chronic pain. Since it is well-known that pain disturbs sleep the relationship between the...

BACKGROUND Labor pain is one of the most intense pains experienced by women. Different factors including physiological, psychological, socio-cultural, environmental, and personality-related factors are relevant to perception of childbirth pain. The negative experience of pain causes mental, psychological problems and influences the relationship between the mother and infant. Therefore, consider...

Recently, more and more studies have found that pain generation, transmission and modulation are under hormonal regulation. Indeed, hormonal dysregulation is a common component of chronic pain syndromes. Studies have attempted to determine whether the relationship between the pain and its perception and hormones is a causative relationship and how these processes interrelate. This review summar...

BACKGROUND AND OBJECTIVES It has been demonstrated that smoking increases pain perception; however the effect of smoking on perception of pain during venous cannulation is not known. The purpose of this study is to determine whether or not smoking has an effect on pain perception due to peripheral venous cannulation. METHODS 220 patients scheduled to have elective surgery were enrolled in the...

BACKGROUND The aim of the study was to assess the consequences of severe spinothalamic tract lesions resulting from lateral medullary infarct and to show that a specific pain perception can be elicited by strong thermal stimulation. CASE DESCRIPTIONS Both patients examined presented with severe thermoalgic dissociation of the limbs contralateral to the lesion, with normal discriminative somat...

A substantial body of evidence has accumulated showing that exposure to electromagnetic fields (EMFs) affects pain sensitivity (nociception) and pain inhibition (analgesia). Consistent inhibitory effects of acute exposures to various EMFs on analgesia have been demonstrated in most studies. This renders examinations of changes in the expression of analgesia and nociception a particularly valuab...

OBJECTIVE To determine knowledge, perception and practices of healthcare professionals at tertiary level hospitals in Kingston, Jamaica, regarding neonatal pain management. DESIGN AND METHODS Physicians and nurses actively involved in providing neonatal care at three tertiary level hospitals were invited to participate. A 21-item self-administered questionnaire was used to obtain information ...

human emotions are in connection with his deeds on the one hand and his perceptions on the other, and this complicates the analysis of emotion. furthermore, any school of thought in search of presenting a comprehensive perspective on the human should clarify its stance with regard to emotion and the position it has in the structure of human cognition and deeds. this fact places the answer to th...

Discovering brain mechanisms underlying pain perception remains a challenging neuroscientific problem with important practical applications, such as developing better treatments for chronic pain. Herein, we focus on statistical analysis of functional MRI (fMRI) data associated with pain stimuli. While the traditional mass-univariate GLM [8] analysis of pain-related brain activation can miss pot...

Pain is an unpleasant sensation. It warns the living being about the impending damage to the tissues. The perception of pain is influenced by physical and psychological factors. The impact of chronic intermittent psychological stress on pain perception and the differences in antinociceptive responses have been studied in male and anestrous female albino rats. Fifteen rats in each group were sub...