Tuesday, February 26, 2019

How Electrical and Neurochemical Activity of the Brain Is Related to Behaviour Essay

In order for the brain to function correctly in an effective and efficient way it relies on the financing from nerve cells that are responsible for the relay of vital information to and from the brain. This information is inevitable to succor us know how to feel, roleplay and transact depending on the different situations. and so the circuit of neurons or nerve cells develop a system where they dish out the information from cell to cell via the synapse eventually placeing to the brain which controls how we be give up and feel.This system is based on electrical and neurochemical activity performed by the brain. Presynaptic cells tucker out chemicals known as neurotransmitters into synapses, which allow an electrical or chemical suggest to pass to another(prenominal) cell. These signals eventually travel their way to the brain via the fundamental nervous system, where in turn the brain releases a message that directs the consistence on how to deal or cope with the stimul us.There are more known diseases that can influence this process causing neurological problems, amongst do drugs abuse, alcoholism and brain trauma is illnesses that are degenerative diseases that cause damage to the nerve cells which in turn leads to behavioral and psychiatric problems, one of these macrocosm Alzheimers disease (Alzheimer 1907). Alzheimers is the result of decreased brain size which occurs when a huge portion of nerve cells die and the tissue in the brain reduces in size.The detoriation and reduced levels of the nerve cells substance that nerves are not able to respond as intimately as they should be able too. This in turn causes chemical disruption which then slows dump the transmission of chemical impulses. Alzheimers affects the different areas of the brain. It causes the cortex to shrivel up which damages areas required for thinking, planning and remembering. It causes the hippocampus to in any case shrink which is required to help get to new memories .The disease also makes the ventricles (fluid filled spaces in the brain) to grow larger than normal. Scientists have discovered that patients diagnosed with Alzheimers tend to have fewer nerve cells and synapses in the brain. The brain holds abnormal clusters of proteins (plaques) which tend to build up between the nerve cells which make it harder for the synapses to perform their job of transferring messages to another cell. This means the nerve ells eventually die and develop tangles which are worm strands of protein. These tangles destroy the cell transport system by preventing nutrients and other necessary supplies travelling too other cells, therefore these cells eventually die. Due to the cells end the brain begins to shrink therefore sacrificing areas of the brain that is required for everyday life, this than leads onto behavioral problems caused by insufficient neural activity.An Alzheimer suffer will show repetitious behaviour where they constantly ask the same questi on or perform the same action continuously this is due to the damage of the brain. They will also become restless and suffer with sleep deprivation which can lead to agitation and frustration. This is all the result of change in neural activity and despite drugs being prescribed the patient will still induce anxiety and depression which leads to violent and abusive outbursts.A common behavioural symptom is also experiencing hallucinations and delusions that are frustrating for both the sufferer and their support network. These symptoms and effects of Alzheimers are all due to the disruption in neural activity which is caused by the shrinking of the brain due to little functioning of nerve cells. The effect of different areas of the brain shrinking means that they are not able to perform their job as well as a healthy brain can.

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