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Physiological and Evolutionary Influences on Psychology.

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´╗┐The Biological Level Of Analysis stresses on three very vital principals in the basis of psychology. The first and utmost principal states that All behavior is physiological Firstly, the word physiological is an euphemism of biology. Which can also be further explained by the Oxford dictionary as the branch of biology that deals with the normal functions of living organisms and their parts as explained. We understand that all behaviors are produced and controlled by the brain. The brain however does not control all human activities on its own. Parts of the brain structure helps specific functions carry out circumscribed locations. For instance, the occipital lobe helps control ones sight but the temporal lobe controls the auditory cortex. ...read more.


This theory was explained by Carl Wernicke. Besides the emphasis on the brain structure, the Neurons in the brain also effect the behavior of man. This occurs because of the neurotransmitters in the brain that sends chemical messengers to the brain in order to function. For example, Serotonin, dopamine, acetycholine and Noradrenaline are all responsible for different affects in the neurons. A lack in one transmitter can cause a defect. For instance, lack of serotonin can affect ones sleep and appetite. In addition to this, neurotransmitters do also have certain effects on ones behavior. It can firstly slow down the cognitive components such as the process of learning, memory and thinking. ...read more.


However, the human participants did make many errors and their accuracy decreased as the numbers were replaced with blank squares more quickly. This experiment was done to prove that firstly both chimpanzees and humans are able to carry out similar brain activities, and secondly chimpanzees show greater memory power due to their adaption to the environment. The third principal in psychology states that behavior can be inborn because it is genetically based. This is evidently simple because it tells us that our behavior can be inherited by our parents. A genetic research had been done based on correlational studies which studied about monozygotic and dizygotic. Scientist discovered that the mono,twins are genetically identical but dyzogotic twins were not. In conclusion to these theories, we understand that these three principals can effect our behavior but has to be evidently proven. ...read more.

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