Journal ArticleDOI
Brain evoked potentials are functional correlates of induced pain in man.
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The data suggest that the earlier EP components may reflect sensory transmission processes while the later components indicate brain activity when pain is perceived.Abstract:
Electrical potentials evoked by 5 intensities of painful dental stimulation were recorded at the scalp. During testing, volunteers indicated subjective painfulness by verbal pain ratings and visual analogue scales. Evoked potentials (EPs) to each intensity, observed between 50 and 400 msec, were characterized by 4 waveform components. The peak-to-peak amplitudes, but not the peak latencies, of all 4 EP components systematically increased with increased stimulation. The amplitudes of the two earlier components correlated with stimulus intensity when the effect of subjective painfulness was controlled, but this was not the case for the later components. In contrast, the amplitudes of the two later components were associated with subjective painfulness but not with stimulus intensity. A strong linear relationship was observed between subjective painfulness and peak-to-peak amplitude for the EP component observed between 175 and 260 msec. The data suggest that the earlier EP components may reflect sensory transmission processes while the later components indicate brain activity when pain is perceived.read more
Citations
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Journal ArticleDOI
Clinical usefulness of laser-evoked potentials.
TL;DR: This review outlines principles and recording techniques for LEP in patients and compiles typical LEP findings in patients with lesions due to different diseases at various levels of the nociceptive pathways.
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Hypnosis and clinical pain.
TL;DR: Randomized controlled studies with clinical populations indicate that hypnosis has a reliable and significant impact on acute procedural pain and chronic pain conditions.
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Variability of laser-evoked potentials: attention, arousal and lateralized differences
Ahmad Beydoun,Ahmad Beydoun,Thomas J. Morrow,Thomas J. Morrow,Joanne F. Shen,Joanne F. Shen,Kenneth L. Casey,Kenneth L. Casey +7 more
TL;DR: The peak-to-peak LEP amplitude decreased 38% during a distraction task and 42% during drowsiness and was absent during stage 2 sleep, indicating a modulation of responsiveness to laser stimulation during distraction and decreased states of arousal.
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Functional Mapping of the Insular Cortex: Clinical Implication in Temporal Lobe Epilepsy
Karine Ostrowsky,Jean Isnard,Philippe Ryvlin,Marc Guénot,Catherine Fischer,François Mauguière +5 more
TL;DR: The insular cortex was investigated on electroclinical arguments suggesting the possibility of a perisylvian spread or a rapid multilobar diffusion of the discharges during video EEG.
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Brain Dynamics and Hypnosis: Attentional and Disattentional Processes
TL;DR: Findings from studies of electrocortical activity, event-related potentials, and regional cerebral blood flow during waking and hypnosis are presented to suggest that these attentional differences are reflected in underlying neurophysiological differences in the far fronto-limbic attentional system.
References
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Book
Signal detection theory and psychophysics
David M. Green,John A. Swets +1 more
TL;DR: This book discusses statistical decision theory and sensory processes in signal detection theory and psychophysics and describes how these processes affect decision-making.
Journal Article
The ten-twenty electrode system of the international federation
TL;DR: During the First International EEG Congress, London in 1947, it was recommended that Dr. Herbert H. Jasper study methods to standardize the placement of electrodes used in EEG (Jasper 1958).
Book
Rank correlation methods
TL;DR: The measurement of rank correlation was introduced in this paper, and rank correlation tied ranks tests of significance were applied to the problem of m ranking, and variate values were used to measure rank correlation.
Book ChapterDOI
Rank Correlation Methods
TL;DR: RankRank correlation coefficients as mentioned in this paper are statistical indices that measure the degree of association between two variables having ordered categories, and are defined such that a coefficient of zero means "no association" between the variables and a value of +1.0 or -1.
Book
Experimental design in psychological research
TL;DR: Experimental design in psychological research as mentioned in this paper, Experimental design in psychology research, Experimental Design in Psychological Research, کتابخانه دیجیتالی دانشگاه علامه طباط-بائی
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