The Brain Essay

Submitted By carlesha98

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Pages: 2

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Before we can tell the disorders of the brain I must tell about the brain briefly. The brain is the most complex organ in the human body, in terms of both its structure and chemical composition. Created by our genes, life experiences and the environment around us. Neurotransmitters perform a key role in controlling state of mind, emotions and behavior. Insignificant changes to the neurotransmitter systems can impact the development of neurological problems or brain disorders. Knowing how circuits, synapses and neurotransmitters are reformed in people with brain disorders is important in the development of new cures and prevention strategies, directed at distress caused by possibly debilitating illnesses.
The complexity of the brain does not end with its structural and chemical composition. When we learn something new, form a memory, experience stress or disease, the biochemical structure of our brain changes at the neuronal level. This changes information movement and is known as neuronal plasticity.
Disorders that affect the forebrain
Region Disorder
Cerebral cortex depression, Huntington's disease, mania
Cerebrum epilepsy, stroke
• frontal lobe Alzheimer's disease, depression, mania
• parietal lobe Alzheimer's disease
• temporal lobe Alzheimer's disease, depression, mania
Limbic system mania
• amygdala depression, anxiety
• hippocampus Alzheimer's disease, mania
One method which has been used to study this disorder is the EEG. The EEG is a technique that records the electrical activity produced by the brain’s neurons through the use of electrodes that are placed around the research participant’s head. It can show if a

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