Schizophrenia

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genes from our parents, but this does not mean that the parents of a schizophrenic are mentally ill. Problems in a person�s genetic make up could come from mutated chromosomes or recessive genes. In an attempt to prove this theory, scientists study identical twins. Due to the fact that identical twins have identical genetic make up, researchers are able to determine if heredity is the main cause of . However, evidence seems to disprove this theory. In some instances, both identical twins are schizophrenics and other times only one is affected. To defend this theory, it should be noted that this research is complicated. Identical twins are relatively rare, especially twins who are both diagnosed with . Studies have also shown that children with one parent diagnosed with have a ten percent chance of suffering from . When both parents are schizophrenic, their risk raises to approximately forty percent.
Little is known about the Environmental Theory. The theory is built ...

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possible for the signal to get mixed up. When this happens, our brain may misinterpret the signal or may not receive it at all. If the signal does get mixed up on the way to the brain, the make up of the impulse can undergo a chemical change, resulting in irregular thought processes and abnormal behavior. Scientists have undergone in-depth studies on a chemical in the brain called dopamine. They believe that schizophrenics have higher levels of this chemical than a mentally sound person does. To experiment this theory, researchers have injected animals and humans with amphetamines increasing the amount of dopamine reaching the brain. Following the injection, the animals exhibit the ...

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