Thursday, November 28, 2019

Psychology Use Of Language Essays - Communication Disorders

Psychology: Use Of Language Jennifer Mull Psychology Human speech makes possible the expression and communication of thoughts, needs, and emotions through vocalization in the form of words. It is a process whose specialized adaptations differentiate it from the mere making of sounds--a capacity humans share with most animals. In addition to the capacity for laryngeal production of sound (which some animals also possess), speech requires a resonance system for modulation and amplification of that sound and an articulation process for the shaping of that sound into the communally established word-symbols of meaning that constitute the language of a given culture. (Dean Edell) The use of language is made possible by certain cerebral functions: the formation of thoughts; the comprehension, storage, and recall of words; and the selection of words to express the thoughts and the arrangements of these words in a sequence or organization that constitutes (or attempts to constitute) intelligible communication. The speech process involves the speech centers of the brain, the respiratory center in the brain stem, the respiratory system, the chest cavity, the structures of the larynx, the pharynx, the nose and nasal cavities, and the structures and parts of the mouth and related facial muscles. There are three identified speech areas. The Supplementary motor cortex, on the very top of the left frontal lobe, involves the process of vocalization itself. Broca's area, lower down at the back of the left frontal lobe, appears to involve functions of articulation, vocabulary, inflection, and word sequence. Wernicke's area is mainly the posterior part of the left temporal lobe, with parts of the parietal area; any large destruction of this area results in the loss of the capacity for meaningful speech but not the loss of sound production. The speech process starts with an expiration of air, produced by the respiratory mechanisms of lung expansion and contraction: the downward and upward movements of the diaphragm to lengthen or shorten the chest cavity, and the elevation and depression of the ribs to increase or decrease the diameter of the chest cavity. These movements depend on the functions of the upper abdominal muscles. Overall, the muscles that elevate the chest cage are muscles of inspiration (inhalation), and those that depress the chest are muscles of expiration (exhalation). (Health Central) If forceful expiration is required, relative to body or speech needs, all abdominal muscles combined can serve as muscles of expiration. Expiration can then be passive or it can be forcefully active, depressing the cage and starting a current of air upward from the lungs. The driving energy for speech production, generated by the mechanisms of expiration, varies with individual physiology, breathing habits, and training for correction where needed. The resonance process, which is fundamentally the amplification of sound on its way to utterance, involves he pharynx, the mouth, the nose, the nasal sinuses, and the chest cavity. The quality of that resonance, which may range from stridency to virtual inaudibility, also depends on both fixed and variable factors, with regard to physical conditions and learned behaviors, and relates to the intent of the individual and his or her personality as well as his or her speech behaviors. It also relates to the force of the expiration of air and the dimensions of the chest cavity. Through all the various effects and usage of these parts of the resonance mechanisms, certain types of speech mannerisms are exhibited--such as nasality, which represents over reliance on the nasal cavities for resonance; or good sound projection, which utilizes the chest cavity as well as the other organs. The process of articulation constitutes the formation of the amplified sound into words, through movements of the lips, tongue, and soft palate of the mouth, and of the related facial muscles. Moreover, the qualities of a given language may require different forms of articulation because the linguodental zone (between the tip of the tongue and the teeth) may be used differently in one language than the way it is in another. Speech disorders, both functional and organic, at the handicap level, affect about 22 million persons in the United States, according to U.S. Public Health Service estimates. Approximately 40% are due to hearing loss, approximately 10% to neurological disease, and approximately 50% to a range of other

Sunday, November 24, 2019

Absolute and Relative Error Calculation

Absolute and Relative Error Calculation Absolute error and relative error are two types of experimental error. Youll need to calculate both types of error in science, so its good to understand the difference between them and how to calculate them. Absolute Error Absolute error is a measure of how far off a measurement is from a true value or an indication of the uncertainty in a measurement. For example, if you measure the width of a book using a ruler with millimeter marks, the best you can do is measure the width of the book to the nearest millimeter. You measure the book and find it to be 75 mm. You report the absolute error in the measurement as 75 mm /- 1 mm. The absolute error is 1 mm. Note that absolute error is reported in the same units as the measurement. Alternatively, you may have a known or calculated value and you want to use absolute error to express how close your measurement is to the ideal value. Here absolute error is expressed as the difference between the expected and actual values. Absolute Error Actual Value - Measured Value For example, if you know a procedure is supposed to yield 1.0 liters of solution and you obtain 0.9 liters of solution, your absolute error is 1.0 - 0.9 0.1 liters. Relative Error You first need to determine absolute error to calculate relative error.  Relative error expresses how large the absolute error is compared with the total size of the object you are measuring. Relative error is expressed as a fraction or is multiplied by 100 and expressed as  a percent. Relative Error Absolute Error / Known Value For example, a drivers speedometer says his car is going 60 miles per hour (mph) when its actually going 62 mph. The absolute error of his speedometer is 62 mph - 60 mph 2 mph. The relative error of the measurement is 2 mph / 60 mph 0.033 or 3.3%

Thursday, November 21, 2019

Discussion Essay Qustion Example | Topics and Well Written Essays - 250 words - 5

Discussion Qustion - Essay Example Venus is covered by carbon dioxide. This absorbs high amount of heat which relatively increases surface temperatures (Corfield, 2007). Earth is the only planet that supports life. Its atmosphere is made of different layers that include troposphere, thermosphere stratosphere, and mesosphere. It comprises of different percentages of moving air that is 78.2% of nitrogen, 1.0% of inert gases, 21.1% of oxygen, 0.04% and water vapor. In Mars the atmosphere is thin comprising of small traces of nitrogen, oxygen, carbon dioxide argon and small traces of water vapor (Corfield, 2007). Jovian planets, also known as outer planets are large in sizes and do not have surfaces that are in solid state. They are far from the sun and therefore cooler than the inner planets. The inner part of these planets is made up rocks at the core. Their atmosphere comprises of helium and nitrogen components. The first and the main difference between terrestrial and Jovian planet is the size where terrestrial planet is smaller in size. Secondly are their surfaces. Terrestrial planet it’s made of rocks while Jovian planet is made up of gases. Third is that the atmosphere of terrestrial planet is mainly made of nitrogen and carbon dioxide whereas the atmosphere of Jovian planet comprises of hydrogen and helium. Fourthly, terrestrial planets are nearer to the sun as compared to Jovian planets (Runcorn, 1988). Jovian planet is also known to rotate at faster rate than terrestrial