Determine the uses of electrical recording - brain function, Biology

Assignment Help:

Determine the uses of Electrical Recording - Brain function

We can also learn about brain function by recording its electrical activity. In electroencephalography (EEG) and the closely-related potential (ERP) recording, electrodes are attached to the scalp and the amplified electrical activity detected by them is displayed on chart recorder or computer screen. Surface recording is possible because the electrochemical activity of the brain is conducted passively through the meninges (protective membranes surrounding the brain), and the skull to scalp. The recorded voltages represent the summed activity of millions of neurons in the area of brain closest to the recording electrode so, in order to get an idea about the spatial distribution of activity, several separate channels of EEG corresponding to electrodes in different positions on the head can be recorded simultaneously. This procedure has proved invaluable in the diagnosis of epilepsy and in the identification of sleep-related disorders.

 


Related Discussions:- Determine the uses of electrical recording - brain function

Coniferous forest - ecosystem, Coniferous forest - Ecosystem Cold regi...

Coniferous forest - Ecosystem Cold regions with high rainfall and strongly seasonal climates with long winters and fairly short summers are characterised by boreal coniferous

Define the water bath with shaker, Define the Water Bath with Shaker? A...

Define the Water Bath with Shaker? An electric water bath with a shaker that can hold test tubes as well as conical flasks. When on a non-shake mode, it acts as a simple water

What is osmotic diarrhoea, Q. What is Osmotic diarrhoea? This kind of d...

Q. What is Osmotic diarrhoea? This kind of diarrhoea is caused by the presence of osmotically active substances in the intestinal tract, which in turn, favour the drawing of la

Transmembrane voltage, How come that difference of K+ and Na+, which are bo...

How come that difference of K+ and Na+, which are both monovalent cations, creates the difference of the net charge of the membrane at different sides?

Stratification, Stratification On the basis of the variation in air tem...

Stratification On the basis of the variation in air temperature. the atmosphere has been divided vertically into four layers: (figure shown below) thee troposphere, stratospG,

Energy flow - ecosystem, Energy Flow - Ecosystem Our world is a solar-...

Energy Flow - Ecosystem Our world is a solar-powered system, and green plants are the entry gates of energy into ecosystem. The total incoming solar energy, only a very small

What is sex-influenced dominance, What is sex-influenced dominance? The...

What is sex-influenced dominance? The Sex-influenced dominance is the phenomenon in which the manifestation of a phenotype of a gene in heterozygosity depends on the sex of the

State the layers of retina, State the Layers of retina The retina is c...

State the Layers of retina The retina is coil~posed of ten layers: a) Pigmented epithelium (outermost layer), b) Neusoepithelium, rods and cones (photoreceptors), c) Exte

What are some prophylactic measures for tapeworm infections, Q. What are so...

Q. What are some prophylactic measures for tapeworm infections? The major prophylactic measures against the taeniasis and the cysticercosis are not to ingest raw or badly cooke

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd