Function of the Brain Term Paper

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function of the brain as it relates to psychology. Understanding the function of the human brain is critical in understanding how and why people think and act the way they do. Studying the brain can also explain many different types of behaviors, such as emotions, stress, and even the development of language, and all of these are extremely useful in the study of psychology.

The brain is divided into four sections, called lobes. Emotions are associated with the Frontal lobe, along with reasoning, movement, planning, parts of speech, and problem solving. The neurological pathways associated with perceiving and producing emotions come from two individual neurological pathways. Two scientists found, "The first pathway connects the prefrontal cortex, the brain's emotional command center, to the nucleus accumbens, a region linked primarily to positive emotion; the second connects it to the amygdala, which is linked primarily to negative emotion" (Editors, 2008). Studies have shown that people can "turn off" their negative emotions by thinking about other things, and that seeing and feeling something can trigger emotions in the brain. Studies also show that damage to the frontal lobe, especially in children, can produce a lack of or negative emotional status for people, leading to deviant emotions in some people. The frontal lobe is located in the limbic system, which also contains glands like the hypothalamus, the septum, and the hippocampus. Scientists have called the limbic system the control center of the entire brain.

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Everyone knows that stress can be quite dangerous to a person's health and well-being. Well, stress can have a very negative effect on neuroanatomy and a person's behavior, too. The limbic system of the brain is also highly involved in stress and the reaction to stress, because it is the control center of the brain. There is a human stress response that triggers in the brain and guides a person through stressful times. The triggers occur when the stress occurs, and follow a neurological pathway inside the brain. It triggers the locus ceruleus, limbic nuclei, and hypothalamic nuclei, and the response is the stress response from the brain. It generates feelings of "flight or fight," and we act accordingly. Stress can change behavior and affect the neuroanatomy by triggering certain reactions or thought processes in the brain. Each brain perceives stress differently, and that is why we react differently to stressful events. Some events are remembered as more significant or stressful, and they elicit stronger responses. Stress does literally affect the brain, studies show. Two other scientists note, "Cognitive activation studies indicate increased amygdalar and decreased medial prefrontal cortical responding to threat, and impaired responding in rostral anterior cingulate cortex to emotional tasks" (Taber & Hurley, 2009). Other studies show decreased volume in other areas of the limbic system, as well, like the hippocampus. This means the brain is literally functioning differently under….....

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