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All tissues in the human body, including skin, have the ability to conduct electricity. Indeed, this is how nerves function to relay information from one part of the body to another. The skin also has electrical activity, which is in constant, slight variation, and can be measured and charted. The skin's electrical conductivity fluctuates based on certain bodily conditions, and this fluctuation is called the galvanic skin response.
Sudden changes in emotion, such as fright, can trigger this response, as can other types of changes, such as the hot flashes that are characteristic of menopause. The galvanic skin response can be graphed on a chart for observation, in the same way that heart or brain activity is recorded. Even though this is the case, it is impossible to detect the type of emotion or physical change that elicited the reaction by simply looking at the graph.
The devices which measure this response are often referred to as feedback instruments, in part because of how this response is generated or detected. If this response is measured "actively," then a gentle electric current is passed through the body of the test subject to measure conductivity. A passive test measures the current that is generated by the person's body itself. The feedback from this is what constitutes the measured galvanic skin response.
What else can I help you with?
What is the application of knowing that soil heats faster than water?
chuck Norris
What heats a large amount of liquid science equipment?
I depends on what you class as late but maybe a Bunsen Burner
How glue gun heating element works?
A glue gun heating element consists of a metal rod wrapped with a high-resistance wire, such as nichrome. When electricity passes through the wire, it generates heat due to electrical resistance. This heat is transferred to the metal rod, which then heats up the glue stick in the gun to melt it for application.
What piece of laboratory equipment would be most appropriate to measure hot water of 300 ml in the bath tub as it heats?
A thermometer would be the most appropriate laboratory equipment to measure the temperature of the hot water in the bathtub as it heats. It can give you an accurate reading of the water temperature as it warms up.
How can stoichiometry be used in tandem with heats of formations to calculate the energy of a reaction?
Through the application of Hess's Law (of Constant Heat Summation) one can use heats of formation to find the overall energy release or requirement. The overall reaction energy is equal to the difference between total heats of formation of the products and the total heats of formation of the reactants.
Energy convertion in an electric iron?
Electrical energy is used to heat an element. This heats the base plate of the iron.
How does a copper coil heats water?
A copper coil heats water when electricity passes through it, generating heat in the coil due to its electrical resistance. This heat is transferred to the surrounding water, raising its temperature.
What is one common application of thermal expansion?
A thermostat is a common application of a thermal expansion. It works as an indicator with an internal liquid that rises up if the temperature in the room also heats up.
What happens to the electrical energy used to light a light bulb?
It heats the filament (which glows and so generates electromagnetic energy).
What kind of energy heats your lights and computers?
Lights and computers use electrical energy. The production of heat is an unwanted side effect, but it gets produced from the use of this same electrical energy.
Can you explain how puddles disapper?
Evaporation, the heat heats up the puddles enough to get them to steam form, and they rise up into the sky.
What does electrical energy transfer into when in a toaster?
Electrical energy in a toaster is converted into heat energy, which is responsible for toasting or cooking the food. The electrical energy heats up the heating elements inside the toaster, which then transfer the heat to the food to cook it.
