Andrea Yates Blog
I believe that the neuroscience and behavior perspective of psychological analysis is the most convincing. Andrea Yates had multiple family members who suffered from depression. Her postpartum depression can be backtracked to an abnormally low amount of serotonin reaching her brain. Whether this is do to a problem in the receptors or in neurotransmitter production, it could possibly be traced to her DNA. There could easily exist a problem in her genetics that led to her depression. This would explain her family trend. She had a biological problem that led to her actions. As far as an environmental perspective, I believe that the five children and unhelpful husband where the straw that broke the camel's back. The stress her environment created compounded her biological problem causing her drastic action.
The Andrea Bates case reveals the scientific and biological influences on psychology. The way a person behaves and acts is directly caused by their brain. Hence, any physical problems with neurotransmitters or neurons can affect behavior. Psychology is not simply a study of how people think but a study on what scientifically causes thought and the mental processes involved. Another example of the scientific causes of mental processes can be seen in psychological problems brought by direct physical trauma to the brain. When a part of the brain is destroyed or deformed, the results to the organism can be drastic and their behavior is in direct correlation with the deformity. If someone has a lobotomy, they lose all social abilities due to trauma to that part of the brain.