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It is a neural mechanism that plays a role in encoding of new information. Encoding takes place as a result of changes in the strength of synapses among neurons in neuronal networks that process and store information. This change occurs when one or more axons connected to some dendrite bombard it with a brief but rapid series of stimuli-such as 100 synaptic excitations per second for 1to 4 seconds. The burst of intense stimulation leaves the synapses potentiated (more responsive to new input of the same type) for minutes, days or weeks. This phenomenon is termed as long term potentiation. It occurs in many brain areas and is particularly prominent in hippocampus.
The chemicals involved in LTP are glutamate and its receptors - NMDA and AMPA. A wide variety of drugs that interfere with LTP also blocks encoding process whereas drugs that facilitate LTP enhance the process.
Describe Schizocoelus and its role. One of two ways that a body cavity forms within mesoderm. (The other is enterocoelic pouching.) Block of mesoderm splits apart to create the
Q. What is Galactosemia? Galactosemia is a genetic disorder caused by deficient functioning of any of these three enzymes namely galactokinase, galactose -1 - phosphate uridyl
Which of the following is true for ventilation? A. Interneurons responsible for generating the rhythm of ventilation are located only in the hypothalamus. B. All the central
Explain Homogenization Homogenized milk will not be affected, as the fat globules are already broken up. Homogenization increases the viscosity of whole milk but slightly dec
Define Carcinogenic - Non-dietary Factors? A large number of agents cause genetic damage and induce neoplastic transformation of cells, they fall into the following categories.
Allosteric enzymes are those that have more activation center and to which other substances known as allosteric regulators bind. Allosteric regulators can be allosteric inhibito
Explain lyases These enzymes (code EC 4) cleave C-C, C-O, C-N and other bonds by elimination, forming double bonds or conversely adding groups to double bonds. Common names
Describe the Classification of Life in diversity of life? There are at least 10 million different kinds of living organisms inhabiting Earth. Many different organisms have comm
Three charges are arranged as shown in the figure below. Find the magnitude and direction of the electrostatic force on the charge q = 4.78 nC at the origin. (Let r12 = 0.260 m.)
Define Practical Preparation - Qualitative Test for Monosaccharides? 1. Wear your labcoat. Make sure your hair is tied and you have no loose clothing. These can be dangerous in
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