scholarly journals Development of Technology for Generating Stimulus Temperature Sensation with Skin Temperature Measurement Function

2015 ◽  
Author(s):  
Koshiro Honda ◽  
Yoshihumi Oyama ◽  
Masanobu Nagata ◽  
Miki Oogushi ◽  
Mika Hagino
Keyword(s):  
Temperature Measurement ◽  
Skin Temperature ◽  
Temperature Sensation ◽  
Measurement Function ◽  
Stimulus Temperature

Practical value of skin temperature measurement

1934 ◽  
Vol 30 (10) ◽  
pp. 1049-1050
Author(s):  
I. Johs
Keyword(s):  
Temperature Measurement ◽  
Skin Temperature ◽  
Practical Importance ◽  
Great Practical Importance ◽  
Artery Embolism

Skin temperature depends mainly on the amount of incoming blood and is of great practical importance. In limb artery embolism the skin temperature reveals a large difference on the healthy and diseased limb. In doubtful cases this symptom allows a diagnosis to be made after 1-2 hours and a timely operation to be undertaken.

Comparison of responses of warm and nociceptive C-fiber afferents in monkey with human judgments of thermal pain

1978 ◽  
Vol 41 (2) ◽  
pp. 509-528 ◽  
Author(s):  
R. H. LaMotte ◽  
J. N. Campbell
Keyword(s):  
Skin Temperature ◽  
Conduction Velocity ◽  
Mechanical Stimulation ◽  
Human Subjects ◽  
Radiant Heat ◽  
Cumulative Number ◽  
Painful Stimulation ◽  
C Fibers ◽  
Nociceptive Afferents ◽  
Stimulus Temperature

1. Radiant-heat stimuli of different intensities were delivered every 28 s to the thenar eminence of the hand of human subjects and to the receptive fields (RFs) of 58 "mechanothermal nociceptive" and 16 "warm" C-fibers, most of which innervated the glabrous skin of the monkey hand. A CO2 infrared laser under control via a radiometer provided a step increase in skin temperature to a level maintained within +/- 0.1 degrees C over a 7.5-mm-diameter spot. 2. Human subjects categorized the magnitude of warmth and pain sensations evoked by stimuli that ranged in temperature from 40 to 50 degrees C. The scale of subjective thermal intensity constructed from these category estimates showed a monotonically increasing relation between stimulus temperature and the magnitude of warmth and pain sensations. 3. The mechanothermal fibers had a mean RF size of 18.9 +/- 3.2 mm2 (SE), a mean conduction velocity of 0.8 +/- 0.1 m/s, mean thresholds of 43.6 +/- 0.6 degrees C for radiant heat and 5.95 +/- 0.59 bars for mechanical stimulation, and no spontaneous activity. In contrast, warm fibers had punctate RFs, a mean conduction velocity of 1.1 +/- 0.1 m/s, heat thresholds of less than 1 degrees C above skin temperature, no response to mechanical stimulation, and a resting level of activity in warm skin that was suppressed by cooling. 4. The cumulative number of impulses evoked during each stimulation in the nociceptive afferents increased monotonically as a function of stimulus temperature over the range described by humans as increasingly painful (45-50 degrees C). Nociceptive fibers showed little or no response to stimulus temperatures less than 45 degrees C that elicited in humans sensations primarily of warmth but not pain. In contrast, the cumulative impulse count during stimulation of each warm fiber increased monotonically with stimulus temperature over the range of 39-43 degrees C. However, for stimuli of 41-49 degrees C the cumulative impulse count in warm fibers was nonmonotonic with stimulus temperature. Warm-fiber response to stimuli of 45 degrees C or greater usually consisted of a short burst of impulses followed by cessation of activity. 5. The subjective magnitude of warmth and pain sensations in humans and the cumulative impulse count evoked by each stimulus in warm and nociceptive afferents varied inversely with the number, delivery rate, and intensity of preceding stimulations. 6. The results of these experiments suggest the following: a) that activity in the mechanothermal nociceptive C-fibers signals the occurrence of pain evoked by radiant heat, and that the frequency of discharge in these fibers may encode the intensity of painful stimulation; b) that activity in warm fibers may encode the intensity of warmth at lower stimulus temperatures, but is unlikely to provide a peripheral mechanism for encoding the intensity of painful stimulation at higher stimulus temperatures.

scholarly journals Decay time characteristics of La_2O_2S:Eu and La_2O_2S:Tb for use within an optical sensor for human skin temperature measurement

2008 ◽  
Vol 47 (27) ◽  
pp. 4895 ◽  
Author(s):  
Sook Voon Yap ◽  
Robert M. Ranson ◽  
Wayne M. Cranton ◽  
Demosthenes Koutsogeorgis
Keyword(s):  
Temperature Measurement ◽  
Skin Temperature ◽  
Human Skin ◽  
Decay Time ◽  
Optical Sensor

Quantification of cutaneous pharmacological reactions: comparison of laser Doppler scanning, colorimetry, planimetry and skin temperature measurement

1996 ◽  
Vol 2 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Markus Stücker ◽  
Tilmann Reuther ◽  
Klaus Hoffmann ◽  
Bernhard Aicher ◽  
Peter Altmeyer
Keyword(s):  
Temperature Measurement ◽  
Skin Temperature ◽  
Laser Doppler

scholarly journals Thermographic skin temperature measurement compared with cold sensation in predicting the efficacy and distribution of epidural anesthesia

2017 ◽  
Vol 32 (2) ◽  
pp. 335-341 ◽  
Author(s):  
Arnoud A. Bruins ◽  
Kay R. J. Kistemaker ◽  
Annemieke Boom ◽  
John H. G. M. Klaessens ◽  
Rudolf M. Verdaasdonk ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Skin Temperature ◽  
Epidural Anesthesia ◽  
Cold Sensation
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