The last lobes on our tour of the cerebral hemispheres are the temporal lobes, which lie in front of the visual areas and nest under the parietal and frontal lobes. The folds in the brain add to its surface area and therefore increase the amount of gray matter and the quantity of information that can be processed. The cortex is gray because nerves in this area lack the insulation that makes most other parts of the brain appear to be white. When people talk about "gray matter" in the brain they are talking about this thin rind. Most of the actual information processing in the brain takes place in the cerebral cortex. It is called the cortex, from the Latin word for bark. The Cerebral CortexĬoating the surface of the cerebrum and the cerebellum is a vital layer of tissue the thickness of a stack of two or three dimes. For example, a stroke in the right hemisphere of the brain can leave the left arm and leg paralyzed. When one side of the brain is damaged, the opposite side of the body is affected. This means that the right cerebral hemisphere primarily controls the left side of the body, and the left hemisphere primarily controls the right side. For instance, the ability to form words seems to lie primarily in the left hemisphere, while the right hemisphere seems to control many abstract reasoning skills.įor some as-yet-unknown reason, nearly all of the signals from the brain to the body and vice-versa cross over on their way to and from the brain. Although the two hemispheres seem to be mirror images of each other, they are different. Despite the split, the two cerebral hemispheres communicate with each other through a thick tract of nerve fibers that lies at the base of this fissure. The cerebrum is split into two halves (hemispheres) by a deep fissure. It allows you to recognize friends, read books, and play games. It holds your memories, allows you to plan, enables you to imagine and think. The cerebrum sits at the topmost part of the brain and is the source of intellectual activities. Use these transitional words and phrases sparingly because if you use too many of them, your readers might feel like you are overexplaining connections that are already clear.When people see pictures of the brain it is usually the cerebrum that they notice. All of these words and phrases have different meanings, nuances, and connotations, so before using a particular transitional word in your paper, be sure you understand its meaning and usage completely, and be sure that it’s the right match for your paper’s logic. Use these transitions strategically by making sure that the word or phrase you’re choosing matches the logic of the relationship you’re emphasizing or the connection you’re making. We’ve divided these words and phrases into categories based on the common kinds of relationships writers establish between ideas. In what follows, we’ve included a list of frequently used transitional words and phrases that can help you establish how your various ideas relate to each other. Transitional words and phrases can create powerful links between your ideas and can help your reader understand your paper’s logic. While clear writing is mostly achieved through the deliberate sequencing of your ideas across your entire paper, you can guide readers through the connections you’re making by using transitional words in individual sentences. In order to think through the challenges of presenting your ideas articulately, logically, and in ways that seem natural to your readers, check out some of these resources: Developing a Thesis Statement, Paragraphing, and Developing Strategic Transitions: Writing that Establishes Relationships and Connections Between Ideas. To help readers move through your complex ideas, you want to be intentional about how you structure your paper as a whole as well as how you form the individual paragraphs that comprise it. One of your primary goals as a writer is to present ideas in a clear and understandable way.
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