Outline and Evaluate Biological Therapies for Depression

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The first treatment in biological therapies is chemotherapy; this is the use of drugs to treat a mental illness. Under chemotherapy there are 3 main types of drugs; Antipsychotic, antidepressants and anxiolytic. Anti psychotic drugs are generally used for more severe mental health problems such as schizophrenia. They work by balancing chemicals in the brain such as dopamine as this is linked with there hallucinations. Antidepressants on the other hand by balancing neurotransmitters such as serotonin and epinephrine witch can cause depression if not sufficiently balanced. Anxiolytic drugs are used to combat anxiety disorders one drug in this field is benzodiazepines (Bzs) they work by releasing more (GABA) witch slows down the nerve transmission calming people down. This drug is effective in areas such as phobias. Another biological therapy is ECT, it is a surgical based treatment commonly used on manic depressives who haven’t responded to antidepressants. This treatment is administrated to a patient by putting a patient into an unconscious state then passing a current of 0.6 amps through the brain. It works instantly, restoring certain neurotransmitters such as nor epinephrine and serotonin. A further biological treatment is psychosurgery; this is broke sown into two surgical procedures: prefrontal lobotomy and sterotactic psychosurgery. A prefrontal lobotomy is often seen as a last resort because the method is very severe and it has a 6% fatality record. A prefrontal lobotomy is administrated by using a probe that enters the brain through the nose or the eye and it then picks and nerves to deconstruct them. However sterotactic surgery is more advanced and modernised. Its method is by using computers to highlight problem areas of the brain so it can use gamma rays to burn them. These techniques both work on the theory cutting parts of the brain will
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