Body Temperature and the Sense of Time: A Translation of Francois (1927) with a Commentary

2019 ◽  
Vol 7 (2) ◽  
pp. 87-107
Author(s):  
J. H. Wearden
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
High Frequency ◽  
Young Female ◽  
The Body ◽  
Main Body ◽  
Variable Speed ◽  
Short Commentary ◽  
Sense Of Time ◽  
Potential Use

The main body of the text presents an English translation of the article by François (1927) on body temperature and time judgements. In summary, François used diathermy, the passage of high-frequency electric current through the body, to change body temperature in three young female participants. Two timing tasks: tapping at a rate that was usually 3/s, and adjusting a variable-speed metronome to a rate judged to be 4/s were used. In general, increases in body temperature shortened the intervals produced, but lengthened duration estimates. The author also discusses (a) the potential use of diurnal variation in body temperature, (b) the use of pulse rate as a predictor of time judgements, and (c) the use of febrile patients. The translation is followed by a short commentary focussing on later studies of body temperature and time judgements, and studies of aspects of heart rate and time judgements.

scholarly journals IDENTIFYING THE MENTAL STATUS OF BEDRIDDEN ELDERLY BY THE BODY TEMPERATURE, HEART RATE, AND SKIN CONDUCTIVITY USING AN ARDUINO SENSOR MODULE

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
W.B.P.N. Herath ◽  
R.A.K.I. Ranasinghe ◽  
M.P.C. Sandaru ◽  
I.A.S. Lakmali ◽  
A.G.N.K. Aluthgama ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Galvanic Skin Response ◽  
Emotional State ◽  
The Body ◽  
Blood Capillary ◽  
Sensor Module ◽  
Skin Response ◽  
Skin Conductivity ◽  
The Relationship

Addressing the emotional and mental health of the bedridden elderly is necessary as they are more likely to be depressed being isolated and dependent on a caregiver for a prolonged time. Several studies have been carried out to identify the mental stress of patients through their skin conductivity. The variations in the sympathetic nervous system reflect the emotional state of a person. This is demonstrated by the Galvanic Skin Response and thus can be used as a denotation of psychological or physiological arousal. Such arousal causes the blood capillary dilation, increment of sweat gland activities making the skin further conductive to electricity. In this study we develop a sensor module composed of a Galvanic Skin Response sensor for the bed ridden elderly and identify the relationship between body temperature, heart rate and GSR of them. The experiment is conducted upon 10 bed ridden elderly aged from 60 – 80 years of the Mihinthale region. The observations demonstrate a correlation between the heart rate, body temperature, skin conductivity and the human physiological states.

scholarly journals Measurement of Heart Rate, and Body Temperature Based on Android Platform

2020 ◽  
Vol 2 (1) ◽  
pp. 26-33
Author(s):  
Musyahadah Arum Pertiwi ◽  
I Dewa Gede Hari Wisana ◽  
Triwiyanto Triwiyanto ◽  
Sasivimon Sukaphat
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Temperature Sensor ◽  
Liquid Crystal Display ◽  
Vital Signs ◽  
Health Condition ◽  
The Body ◽  
Digital Data ◽  
Mental Condition ◽  
Measurement Results

Heart rate and body temperature can be used to determine the vital signs of humans. Heart rate and body temperature are two important parameters used by paramedics to determine the physical health condition and mental condition of a person. Because if your heart rate or body temperature is not normal then you need to make further efforts to avoid things that are not desirable. The purpose of this study is to design a heart rate and body temperature. In this study, the heart rate is detected using a finger sensor which placed on the finger. This sensor detects the heart rate pulses through infrared absorption of blood hemoglobin, and measure the body temperature using a DS18B20 temperature sensor which is placed axially. DS18B20 sensor works by converting temperature into digital data. The measurement results will be displayed on liquid crystal display (LCD) 2 x 16 and the data will be sent to android mobile phone via Bluetooth.  After the comparision beetwen the desain and the standart, the error is 0.46% for beats per minutes (BPM) parameters and 0.31 degrees Celsius for temperature parameters.

A Patch-Type Flexible Physiological Monitor on a Non-Woven Material

2006 ◽  
Vol 969 ◽  
Author(s):  
Wen-Yang Chang ◽  
Jin-Sheng Chang ◽  
Chun-Hsun Chu ◽  
Tzong-Che Ho ◽  
Yu-Cheng Lin
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
The Body ◽  
Hot Press ◽  
Postural Change ◽  
Good Adhesion ◽  
Patch Type ◽  
Speed Up ◽  
Trace Line ◽  
Hot Press Process

AbstractThe study reported is about an integrated wireless physiological monitor module of the flexible patch type, used on a non-woven material to package this module by a hot press process. The module can monitor the body temperature and heart rate. Experimental results showed that the specification and accuracy should be 25-40 °C ± 0.5 °C and 50-200 bpm ± 2 bpm. The main advantage of the module is that the postural change can be monitored. At the same time, it has also a good adhesion between substrate and components, without crack of conductor trace line after bending the module repeatedly. Thickness is about 2 mm. The aim of this study is to speed up the physiological technology and to create more efficiency by miniaturization. In addition, the acceptance level of wearing it is increased by the small and ergonomic design.

Effects of pentobarbital on temperature and heart rate of rats subjected to cold

1962 ◽  
Vol 203 (4) ◽  
pp. 758-761 ◽  
Author(s):  
C. L. Gemmill ◽  
K. M. Browning
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Standard Dose ◽  
The Body ◽  
Sodium Pentobarbital ◽  
Previous Exposure ◽  
Exposure To Cold ◽  
Before And After

A study at 5 C was made of body temperature and heart rate after a standard dose of sodium pentobarbital in normal, thyroidectomized, and hypermetabolic rats before and after subjection to 5 C for 46 hr. It was found that after subjection to cold in the normal rats, the body temperature and heart rate in some animals had more ability to recover after the barbiturate than in rats without previous exposure to cold. There was no ability to recover in the thyroidectomized animals either before or after subjection to cold. Most of the normal and thyroidectomized rats either with or without previous exposure to cold given sodium 3,3',5-l-triiodothyronine (T-3) had recoveries after the barbiturate. Some rats given T-3 and subjected to cold had a primary fall in temperature and heart rate that was followed by recovery and then a secondary fall.

Heart rate and body temperature during free diving of Weddell seals

1987 ◽  
Vol 253 (2) ◽  
pp. R344-R351 ◽  
Author(s):  
R. D. Hill ◽  
R. C. Schneider ◽  
G. C. Liggins ◽  
A. H. Schuette ◽  
R. L. Elliott ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Adult Male ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Weddell Seal ◽  
The Body ◽  
Weddell Seals ◽  
The Mean ◽  
Slow Onset

We have developed and successfully used the first microprocessor-controlled monitors for collection of data on depth, heart rate, and body temperature of one fetal and five adult male freely swimming Weddell seals. Adult seals almost invariably experienced a prompt bradycardia at the start of each dive, and the mean heart rate during diving was significantly lower for dives greater than 20 min (P greater than 0.999). The heart rate was also significantly greater during the ascent portion of dives when compared with the descent portion (P greater than 0.95). The fetal seal experienced a slow onset of bradycardia when its mother dived; during diving the fetal heart rate decreased by an average of 1.1 beats/min for each minute of the dive. The fetal heart rate generally took approximately 10 min to recover to predive levels after its mother resurfaced to breathe. The body temperature of one adult male Weddell seal showed a decrease of greater than 1.5 degrees C from resting levels before dives of greater than 15 min were initiated and a drop of over 2 degrees C before dives of greater than 30 min duration.

scholarly journals Heart rate reveals torpor at high body temperatures in lowland tropical free-tailed bats

2017 ◽  
Vol 4 (12) ◽  
pp. 171359 ◽  
Author(s):  
M. Teague O'Mara ◽  
Sebastian Rikker ◽  
Martin Wikelski ◽  
Andries Ter Maat ◽  
Henry S. Pollock ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Metabolic Rate ◽  
Ambient Temperature ◽  
The Body ◽  
Metabolic Rates ◽  
Body Temperatures ◽  
Wide Range ◽  
Save Energy ◽  
Molossus Molossus

Reduction in metabolic rate and body temperature is a common strategy for small endotherms to save energy. The daily reduction in metabolic rate and heterothermy, or torpor, is particularly pronounced in regions with a large variation in daily ambient temperature. This applies most strongly in temperate bat species (order Chiroptera), but it is less clear how tropical bats save energy if ambient temperatures remain high. However, many subtropical and tropical species use some daily heterothermy on cool days. We recorded the heart rate and the body temperature of free-ranging Pallas' mastiff bats ( Molossus molossus ) in Gamboa, Panamá, and showed that these individuals have low field metabolic rates across a wide range of body temperatures that conform to high ambient temperature. Importantly, low metabolic rates in controlled respirometry trials were best predicted by heart rate, and not body temperature . Molossus molossus enter torpor-like states characterized by low metabolic rate and heart rates at body temperatures of 32°C, and thermoconform across a range of temperatures. Flexible metabolic strategies may be far more common in tropical endotherms than currently known.

scholarly journals Heart Rate Variability and Inflammatory Response in Rats With Lipopolysaccharide-Induced Endotoxemia

2015 ◽  
pp. S669-S676 ◽  
Author(s):  
I. ZILA ◽  
D. MOKRA ◽  
J. KOPINCOVA ◽  
M. KOLOMAZNIK ◽  
M. JAVORKA ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Body Temperature ◽  
High Frequency ◽  
Heart Tissue ◽  
Frequency Domain Analysis ◽  
Control Group ◽  
Necrosis Factor Alpha ◽  
Saline Administration ◽  
Tissue Homogenates

The aim of the study was to evaluate short-term heart rate variability (HRV) as an index of cardiac autonomic control in rats with lipopolysaccharide (LPS)-induced endotoxemia. Animals were injected intraperitoneally with LPS (100 µg/kg b.w.) and control group with an equivalent volume of saline. ECG recordings were done before (base) and 60, 120, 180, 240 and 300 min after LPS or saline administration. HRV magnitude was quantified by time and frequency-domain analysis (mean RR interval, SDRR, RMSSD, spectral powers in low (LF) and high frequency (HF) bands. Heart tissue homogenates and plasma were analyzed to determine interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-α) and oxidative stress level (TBARS). Administration of lipopolysaccharide was followed by continuous rise in colonic body temperature compared to saline-treated controls. Endotoxemia in rats was accompanied by significant decrease in HRV spectral activity in high-frequency range at maximal body temperature (logHFpower: 1.2±0.5 vs. 1.9±0.6 ms2, P<0.01). Increased IL-6 was found in heart tissue homogenates of LPS rats (8.0±0.6 vs. 26.4±4.8 pg/ml, (P<0.05). In conclusions, reduced HRV in HF band may indicate a decreased parasympathetic activity in LPS-induced endotoxemia as basic characteristics of altered cardiac control during response to endotoxemia.

scholarly journals Embedded Based Heart Rate Measuring Device Using Fingertip

2021 ◽  
Vol 9 (VI) ◽  
pp. 5264-5267
Author(s):  
Lakshmi D L
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Patient Information ◽  
Internal Heat ◽  
Work Force ◽  
Clinical Work ◽  
The Body ◽  
Raspberry Pi ◽  
Measuring Device ◽  
Information Recovery

In this paper, we designed a device to measure a heartbeat using fingertip and we also designed to measure the body temperature. Notwithstanding, the issues that happen in wellbeing administrations is that clinical staff need quite a while to look at patients, patient information recovery is still traditional, and gear utilized as yet utilizing the link media. To tackle the issue, this proposes a pulse observing framework and internal heat level utilizing Raspberry Pi. This examination intends to calm the weight of clinical work force in observing the patient, shorten the time in taking patient data and diminish the occasion of misdiagnosis.

scholarly journals The First Female Dry Immersion (NAIAD-2020): Design and Specifics of a 3-Day Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Elena Tomilovskaya ◽  
Liubov Amirova ◽  
Inna Nosikova ◽  
Ilya Rukavishnikov ◽  
Roman Chernogorov ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Diastolic Pressure ◽  
The Body ◽  
Reproductive Age ◽  
Standard Protocol ◽  
Women Of Reproductive Age ◽  
Minimum Period ◽  
Dry Immersion ◽  
Psychophysiological Functions

This article describes procedures and some results of the first study of females undergoing 3-day Dry Immersion. The experiment “NAIAD-2020” was carried out at the Institute of Biomedical Problems (Moscow, Russia) with the participation of six healthy women volunteers (age 30.17 ± 5.5 years, height 1.66 ± 0.1 m, weight 62.05 ± 8.4 kg, BMI 22.39 ± 2.2 kg/m2) with a natural menstrual cycle. During the study, a standard protocol was used, the same as for men, with a minimum period of time spent outside the immersion bath. Before, during and after Immersion, 22 experiments were carried out aimed at studying the neurophysiological, functional, metabolic and psychophysiological functions of the body, the results of which will be presented in future publications. The total time outside the bath for women did not exceed that for men. Systolic and diastolic pressure did not significantly change during the immersion. In the first 24 h after the end of the immersion, heart rate was significantly higher than the background values [F(4,20) = 14.67; P &lt; 0.0001]. Changes in body temperature and water balance were consistent with the patterns found in men. No significant changes in height and weight were found during immersion. All women reported general discomfort and pain in the abdomen and back. The results of this study did not find significant risks to women’s health and showed the feasibility of using this model of the effects of space flight in women of reproductive age.

scholarly journals The Scheme of Stress Detecting Tools by Using HIR333, GSR and DS18B20 Censors Based On Microcontroller Atmega 8

2019 ◽  
Vol 1 (2) ◽  
pp. 74-80
Author(s):  
Takdir Tamba
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Young People ◽  
Physiological Parameters ◽  
The Body ◽  
Human Stress

A human stress detector has been designed with the physiological parameters of stress. Stress is a common respond to the demands of the body. There is a necessity for self adjustment, thus it causes disturbance in body’s equilibrium. Nowadays, stress is not only experienced by the elders, but also young people. Stress also affects the condition of the body. When someone is stressed, the body will hold integrated reactions against the stressors. These reactions include the increasing heart rate, fast breathing, and cold sweating. The detector works on the condition of the body by using a GSR sensor to determine the conductivity of the skin, HIR333 to detect changes in heart and body temperature DS18B20, which then compared with the specified parameters.

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