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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.
How have brain-imaging methods such as PET and MRI affected neuroscience research and clinical care? Techniques which capture pictures of the living human brain at work have be
Define Signs and symptoms of iron deficiency anaemia? Since the level of haemoglobin is reduced in the blood, it causes paleness (pallor) on certain parts of the body. Initiall
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composition formation and circulation of lymph
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Why is the skin on worms, the gills in fish, and the lungs in humans good epithelial surfaces for respiration. Be specific.
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Define the Bioavailability of Vitamin K? Very little is known about the bioavailability of the K vitamins from different foods. It has been estimated that the efficiency of ab
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