The Four Cerebral Cortex Lobes of the Brain

The cerebral cortex is the layer of the brain often referred to as gray matter. The cortex (thin layer of tissue) is gray because nerves in this area lack the insulation that makes most other parts of the brain appear to be white. The cortex covers the outer portion (1.5mm to 5mm) of the cerebrum and cerebellum. The cerebral cortex is divided into four lobes. Each of these lobes is found in both the right and left hemispheres of the brain. The cortex encompasses about two-thirds of the brain mass and lies over and around most of the structures of the brain. It is the most highly developed part of the human brain and is responsible for thinking, perceiving, producing and understanding language. The cerebral cortex is also the most recent structure in the history of brain evolution. Cerebral Cortex Lobes Function Most of the actual information processing in the brain takes place in the cerebral cortex. The cerebral cortex is located in the division of the brain known as the forebrain. It is divided into four lobes that each have a specific function. For example, there are specific areas involved in movement and sensory processes (vision, hearing,  somatosensory perception (touch), and olfaction). Other areas are critical for thinking and reasoning. Although many functions, such as touch perception, are found in both the right and left cerebral hemispheres, some functions are found in only one cerebral hemisphere. For example, in most people, language processing abilities are found in the left hemisphere. Four Cerebral Cortex Lobes Parietal Lobes: These lobes are positioned posteriorly to the frontal lobes and above the occipital lobes. They are involved in receiving and processing of sensory information. The somatosensory cortex is found within the parietal lobes and is essential for processing touch sensations.Frontal Lobes: These lobes are positioned at the front-most region of the cerebral cortex. They are involved with movement, decision-making, problem-solving, and planning. The right frontal lobe controls activity on the left side of the body and the left frontal lobe controls activity on the right side.Occipital Lobes: Located just below the parietal lobes, the occipital lobes are the main center for visual processing. The visual information is sent to the parietal lobes and temporal lobes for further processing.Temporal Lobes: These lobes are located directly below the frontal and parietal lobes. They are involved with memory, emotion, hearing, and language. Structures of the limbic system, including t he olfactory cortex, amygdala, and the hippocampus are located within the temporal lobes. In summary, the cerebral cortex is divided into four lobes that are responsible for processing and interpreting input from various sources and maintaining cognitive function. Sensory functions interpreted by the cerebral cortex include hearing, touch, and vision. Cognitive functions include thinking, perceiving, and understanding language. Divisions of the Brain Forebrain - encompasses the cerebral cortex and brain lobes.Midbrain - connects the forebrain to the hindbrain.Hindbrain - regulates autonomic functions and coordinates movement.

Homelessness The Problem Of Homelessness - 1584 Words

Homelessness Awareness At some point in their life, a person has seen or heard of an individual who lives on the streets. The individual who lives on the streets and holds a sign that says they need money for food is consider homeless. Sadly, these individuals are everywhere and the amount of people under this title is slowly increasing. However, in this nation we have the ability to begin decreasing that number. By providing the necessary amount of assistance required to place these individuals in permanent housing, the number of homeless individuals will begin to decrease. To solve the problem of homelessness, people must understand why individuals become homeless. Some individuals struggle to find a job that will help pay for their†¦show more content†¦The issue of physical problems can also have an effect on the homeless individual. Endhomeless says that because the homeless are not able to afford medical care, they can suffer from a number of health issues. Those issues can be colds and flu, skin diseases from not being able to bathe properly, nutritional deficiencies, and sleep deprivation. In addition, â€Å"diabetes and heart diseases are also found at high rates among the homeless† (endhomeless). Homelessness can also affect the individual spiritually. These individuals suddenly may lack hope and their purpose for life. Finding purpose while they struggle to meet their daily needs can leave them feeling hopeless and deprived from their abilities. Somerville also points out that homeless individuals have been deprived territorially because of their â€Å"lack of privacy† from living on the streets. This could leave the individual feeling vulnerable to anyone who sees them in their state and walks away. Consequently, they may feel that the world has abandoned them because there is no one helping or reaching out to them. Lastly, homelessness can affect an individual emotionally. Somerville describes this as lacking the emotion of â€Å"love or joy†. At one point of their lives the person might have been employed or had a place of residence and a feeling of self-worth. However, homeless can cause so many difficult emotions that can lead the individual to abusing substances, believing they do notShow MoreRelatedHomelessness : The Problem Of Homelessness1350 Words   |  6 PagesHomelessness There are many parts to the subject of homelessness, of course people talk about the solutions to it like The Ten Year Plan, then there is the history of it starting from the 1640’s. Also there is discussions about Homeless Shelters and more recently Anti-homeless Legislation. Then there are always the staggering statistics. The homeless is a very one minded topic for most. Most people think that the homeless should be helped, cared for, and educated for success. 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Antony’s Speech and the Rhetoric Used Free Essays

Vengeance is a powerful. Caesar’s slaying by Brutus sets Antony in motion to deceive his murderers into allowing him to speak to Rome. In his speech to the Romans, Antony turns Rome against Brutus using repetition to convey the irony in his own speech and discredit Brutus, as well as, applying meter to add emphasis to the mutiny, and contrast Brutus’s speech allowing him to connect with his countrymen. We will write a custom essay sample on Antony’s Speech and the Rhetoric Used or any similar topic only for you Order Now Repetition is used powerfully throughout Antony’s speech to convey a multitude of thoughts, however, the repetition particularly lends to the irony of the piece. †¦let me not stir you up / To such a sudden flood of mutiny. † (188-189) is a prime example of the irony in his address. His intent from the beginning is to lead a revolt against Brutus and Caesar’s other murderers, the fact that he actually states he does not want to create a mutiny while stirring up these very same people to revolt is very ironic. Antony uses an ironic repetition to advance his efforts for a mutiny in the discrediting of Brutus. Before Antony takes the stage to talk to Rome, Brutus has just given a very lively speech and the Romans are partial to him. It is then necessary for Antony to use dramatic irony to deceive his countrymen that he believes that â€Å"†¦Brutus is an honourable man;† (61). When Antony first describes Brutus as honourable the audience agrees it is only after the fourth time he says this that the whole crowd realize the irony behind what he is saying.. Antony uses this irony to discredit Brutus’s honour and sway the Romans to join in a mutiny against Brutus. The meter in Antony’s speech is also a very key part in adding emphasis to the mutiny he wishes to instill in the Romans. Most lines have ten syllables however there are several lines with only nine syllables to add affect. Not only do these sentences have less syllables in common but also they end with ambition. For example â€Å"Yet Brutus says he was ambitious;† (72) the lost syllables place is taken by a pause that allows the Roman and the reader to reflect on the repeated word ambition. This pause allows the Antony to inflict the thought that it was not Caesar that was ambitious but Brutus instead. This meter allows Antony to incite the doubt of Brutus in the minds of Antony’s countrymen and incite them to revolt. Interestingly enough the meter in Antony’s speech also serves as a contrast to Brutus’s who spoke in prose. Antony is a nobleman as is Brutus and throughout the whole play the only part where their dialogue is not written in meter of some sort is when Brutus addresses his countrymen. Antony however speaks as if he is addressing another noble conveying the message that he sees them as equals to him, and that while Brutus speaks down to their level, Antony lifts them up to his equal. This allows him to then sympathize with his countrymen and relate to them so that it is easier to coax them to mutiny. How to cite Antony’s Speech and the Rhetoric Used, Essay examples