How the Fight or Flight Response Works

How the Fight or Flight Response Works Theories Biological Psychology Print How the Fight or Flight Response Works By Kendra Cherry facebook twitter Kendra Cherry, MS, is an author, educational consultant, and speaker focused on helping students learn about psychology. Learn about our editorial policy Kendra Cherry Medically reviewed by Medically reviewed by Steven Gans, MD on July 14, 2019 Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital. Learn about our Medical Review Board Steven Gans, MD Updated on August 18, 2019 Illustration by Joshua Seong. © Verywell, 2018. More in Theories Biological Psychology Behavioral Psychology Cognitive Psychology Developmental Psychology Personality Psychology Social Psychology Psychosocial Psychology The fight-or-flight response, also known as the acute stress response, refers to a physiological reaction that occurs in the presence of something that is terrifying, either mentally or physically. The response is triggered by the release of hormones that prepare your body to either stay and deal with a threat or to run away to safety.?? The term fight-or-flight represents the choices that our ancient ancestors had when faced with danger in their environment. They could either fight or flee. In either case, the physiological and psychological response to stress prepares the body to react to the danger. The fight-or-flight response was first described in the 1920s by American physiologist Walter Cannon. Cannon realized that a chain of rapidly occurring reactions inside the body helped to mobilize the bodys resources to deal with threatening circumstances. Today the fight-or-flight response is recognized as part of the first stage of Hans Selyes general adaptation syndrome, a theory describing the stress response.?? What Happens During the Fight-or-Flight Response In response to acute stress, the bodys sympathetic nervous system is activated due to the sudden release of hormones. The sympathetic nervous systems stimulate  the  adrenal glands  triggering the release of catecholamines, which include adrenaline and noradrenaline. This results in an increase in heart rate, blood pressure, and breathing rate.?? After the threat is gone, it takes between 20 to 60 minutes for the body to return to its pre-arousal levels. You can probably think of a time when you experienced the fight-or-flight response. In the face of something frightening, your heartbeat quickened, you begin breathing faster, and your entire body becomes tense and ready to take action. The fight-or-flight response can happen in the face of an imminent physical danger (such as encountering a growling dog during your morning jog) or as a result of a more psychological threat (such as preparing to give a big presentation at school or work). Some of the physical signs that may indicate that the fight-or-flight response has kicked in include: Rapid Heart Beat and Breathing: The body increases heartbeat and respiration rate in order to provide the energy and oxygen to the body that will be needed to fuel a rapid response to the danger.??Pale or Flushed Skin: As the stress response starts to take hold, blood flow to the surface areas of the body is reduced and flow to the muscles, brain, legs, and arms are increased. You might become pale as a result, or your face may alternate between pale and flushed as blood rushes to your head and brain.?? The bodys blood clotting ability also increases in order to prevent excess blood loss in the event of injury.Dilated Pupils: The body also prepares itself to be more aware and observant of the surroundings during times of danger. Another common symptom of the fight-or-flight response is the dilation of the pupils, which allows more light into the eyes and results in a better vision of the surroundings.??Trembling: In the face of stress or danger, your muscles become tense and primed f or action. This tension can result in trembling or shaking.?? Why Its Important The fight-or-flight response plays a critical role in how we deal with stress and danger in our environment. Essentially, the response prepares the body to either fight or flee the threat. It is also important to note that the response can be triggered due to both real and imaginary threats. By priming your body for action, you are better prepared to perform under pressure. The stress created by the situation can actually be helpful, making it more likely that you will cope effectively with the threat. This type of stress can help you perform better in situations where you are under pressure to do well, such as at work or school. In cases where the threat is life-threatening, the fight-or-flight response can actually play a critical role in your survival. By gearing you up to fight or flee, the fight-or-flight response makes it more likely that you will survive the danger. While the fight-or-flight response happens automatically, that does not mean that it is always accurate. Sometimes we respond in this way even when there is no real threat.  Phobias  are good examples of how the fight-or-flight response might be triggered in the face of a perceived threat. A person who is terrified of heights might begin to experience the acute stress response when he has to go the top floor of a skyscraper to attend a meeting. His body might go on high alert as his heartbeat and respiration rate increase. When this response becomes severe, it may even lead to a panic attack.?? Understanding the bodys natural fight-or-flight response is one way to help cope with such situations. When you notice that you are becoming tense, you can start looking for ways to calm down and relax your body. The stress response is one of the major topics studied in the rapidly-growing field of  health psychology. Health psychologists are interested in helping people find ways to combat stress and live healthier, more productive lives. By learning more about the fight-or-flight response, psychologists can help people explore new ways to deal with their natural reaction to stress.

Should Religion Be Removed From Schools Essay - 1370 Words

Religion in schools is consistently being disputed among schools, students, and government alike. What reasons are there that justify that religion should be taken out of school? Freedom of religion is a pillar of which that holds the foundation of this country, yet it is so heavily discriminated against. The problem lies not in the various religions but in the lack of protection of religion, especially in schools. As said by Richard W.Riley Public schools can neither foster religion nor preclude it. Our public schools must treat religion with fairness and respect and vigorously protect religious expression as well as the freedom of conscience of all other students. In so doing our public schools reaffirm the First Amendment and enrich†¦show more content†¦(http://en.wikipedia.org/wiki/Abington_School_District_v._Schempp)According to angelfire.com, In New Hyde Park, New York, 1962, each school day began with a spoken recital of a prayer. Although this prayer was meant to be non-denominational, many parents of the children who went to school in New Hyde Park found this mandated prayer offensive and did not want their children participating. The Supreme Court case Engel v.Vitale was then formed against this prayer. Engelv. Vitale resulted in the recital of a prayer in schools to be unconstitutional and was no longer allowed in schools of New York. (http://www.angelfire.com/il/schalten/supreme3.html)In another small case, school faculty was forced to remove holiday decorations because it was found to be offensive to people of different religions. Another case was an attempt to remove the words â€Å"under God† from the Pledge of Allegiance, because people believed that â€Å"under God† in the Pledge of Allegiance was overstepping the separation of church and State. The case lost its appeal though and never made it to the Supreme Court. The cases above and many others show that it is unconstitutional to require or force any religious pract ices. School has become a place of neutral religion not to be pressed upon students nor suppressed. In a letter sent by Rod Paige, Secretary of Education in 2003, he states, regarding students rights in school, â€Å"Among other things,Show MoreRelatedThe Role of Religions in America680 Words   |  3 Pages Did you know that according to Procon’s polls, there are over 300 religions in the United States? Monotheisms, polytheisms, pantheisms, and atheism make up these 300 religions. Although the United States may be one of the freest countries in many fields such as freedom of the press, its censorship level is the fourth lowest in the world according to Reporters Without Borders, I believe that freedom of religion isn’t one of its more free fields. 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I believe we need religion in society, otherwise we would all just be mindless robots withRead MorePrayer in the Public Schools1111 Words   |  5 PagesPrayer in the Public Schools Diana Brown Everest Online Composition 1-226 ABSTRACT This essay is composed of facts supporting that prayer in Public Schools would be beneficial for the children and the United States of America. Prayer is an address to God or a god in word or thoughts. The Anti- Defamation League states that, â€Å"A moment of silence will inevitably be unconstitutional or the purpose and effect of such moments of silence are invariably to advance religion. The U.S. Supreme CourtRead MoreThe Reflection Of Francis Bellamys Pledge Of Allegiance1092 Words   |  5 Pagesamount of Americans, but an issue nonetheless. Americans from different religious backgrounds found that this inclusion infringed on their rights, especially in systems such as public schools, where the Pledge of Allegiance is recited daily. Expecting a person to recite god daily, who does not carry the beliefs of god is oppressing; the Pledge of Allegiance does this, therefore it oppresses a group of American citizens and should be removed. If â€Å"under God† is viewed as oppressive, one would wonder

Cyber Bullying - 3292 Words

What are the consequences of cyberbullying among junior high school students? Technological advances are intended to speed up the transfer of information to a large range of people. The internet is an important tool used by kids to learn much faster because there is a large range of data that is available to them. The use of the internet has made accessing information and learning much easier. Although the internet has its positive benefits, such as transferring a large range of information to a broad scope of individuals, if it is misused it can cause harm to people, in particular, young people. Many adolescents have become victims to cyberbullying. Cyberbullying is defined in the Merriam Webster Dictionary(2010) as â€Å"the electronic†¦show more content†¦This makes it difficult to trace the source, and encourages bullies to behave more aggressively than a traditional ‘physical world’ bully† (para. 2). Bullies use the internet to hide from the ones they are bullying and therefore, have no fear or concern about retaliation. The i nternet provides a faster way of transporting messages and information. This fast method of transferring information is a reason why cyber bullying is so dangerous. Bullies take advantage spreading harmful messages to a broader scope of people. Social networks, such as Facebook and Twitter are often used to transfer harmful messages and pictures to large group of friends and strangers. Mindi McDowell(2011), in her article â€Å"Dealing with cyberbullying†, asserts that â€Å" Information or pictures posted online or forwarded in mass emails can reach a larger audience faster than more traditional methods, causing more damage to the victims. And because of the amount of personal information available online, bullies may be able to arbitrarily choose their victims†(para 3). 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Critical Analysis of Beowulf Free Essays

Grendel Deep within the earth, in the frigid darkness laid the mighty beast Grendel. His tall, grisly frame trembled as the melodious hymns floated down to his lair. The joyful music sounded like liquid gold and it stung Grendel’s ears. We will write a custom essay sample on Critical Analysis of Beowulf or any similar topic only for you Order Now He howled a mournful, drawn-out growl in pain. After several days of the Earthwalkers’ continuous celebration, Grendel was becoming steadily impatient, thirsting for retribution. How he longed to taste the bitter, metallic blood that coursed through their veins, and how his whole body ached to cause mayhem. The enormous demon was growing weary of hearing about how the world was created. He was tired of them drinking, and celebrating, all while he suffered within the black, bleak cave he was banished to. He would make them suffer, though. Grendel was a deft demon, and he was ready to demonstrate how powerful he truly was. Children of Cain, such as Grendel, do not often sit idly by, as those whom carouse the victories of the Gods that banished Grendel and his familiars to the Underworld. Forever was Grendel to be punished for the death of Abel, a crime of which he did not commit. To make matters worse, his familiars were on the losing end of the war against God’s creatures, thus casting them deeper within the shadows. However, that would not be the case today. It had gone on long enough. Grendel’s large feral body trembled in anticipation – he would strike them tonight. He would spill their blood in the streets and show them what such a mighty creature can do. Then, as the icy blanket of night crept across the Above World, Grendel emerged from his cavern. His muscular legs propelled him quickly across the grassy fields to Herot, and as he went, Grendel wondered how the warriors would be recuperating from their celebrations. As he approached Herot, he found all of the warriors scattered throughout, all in a deep sleep. As he stepped lightly on the ground, Grendel sniffed the air. A fowl stench of brandy mixed with the bitter scent of their sweat intoxicated Grendel. His canine ears perked as he heard the slow, rhythmic beating of each of their hearts. He walked among their numbers, gazing upon each potential victim and sizing them up. Who would provide the best kill? Who would give him the luscious blood he so eagerly wished to taste. Finally, he came upon the perfect victim – a boy, about to become a man, his warrior’s helmet was slightly askew on his sandy-colored hair. A silvery trail of drool slid from his lips and out onto the cold stone floor as he snored quietly. He had obviously never experienced battle, for his armor was made only of thin leather and had not even a fleck of dirt on it. Grendel’s black lips curled upwards as he gazed down upon his unknowing victim. The power of the demon could crush his skull in a second, splattering the boy’s hopes and dreams all across the stone floor. No, that would be too abrupt – and it wouldn’t be the warrior’s death that this boy obviously so eagerly desired. No, Grendel would enjoy this. So with one slash of his razor-sharp talons, the boys throat was cut. Long ribbons of scarlet ran down his almost severed head and down onto the floor. The instant his neck was cut, his eyes shot wide open in horror, staring for only a moment at his murderer. The fear, now etched eternally in his face, was like that of watching your worst nightmare transpire right in front of your eyes. That moment was everything Grendel wanted from his journey into mayhem. That single moment was what captured Grendel’s thirst and made it even stronger. Grendel licked the crimson beads from his claws and savored the coppery taste. He could feel it enter his body and it made him even stronger. Every one of his muscles throbbed in eagerness to slaughter more people, to taste more blood, and to incite even more fear. He moved swiftly between his victims, his footsteps barely making a whisper. After a few more throat cuttings, Grendel decided he would massacre more by crushing a few skulls. Moving up to one rather rotund warrior, he grasped the warrior’s head within his long fingers, and the instant Grendel felt the warrior awaken, he squeezed with tremendous force. Within that moment, the warrior’s body felt limp, his enormous weight now pulling Grendel’s arm down. The demon could feel the sharp fragments of bone and helmet inside his hand, and the warm, stickiness of the blood as it ran along his fingers. Over two dozen more, he did this to, before carrying all of their bodies back to his lair. On his way back, though, he made sure that they left a long river of blood towards his cavern. Grendel greatly anticipated the awakening of the other warriors. As soon as day broke, he was not disappointed – those whom Grendel had spared began to cry and moan as they discovered the fate of their loved ones and compatriots. Their joyous songs of celebration turned to marred hymns of lament. Now that was music to Grendel’s ears. In fact, the magnitude of excitement Grendel felt made it impossible for him to stay within his cavern that night. Just like he had done last night, he crept out of his lair and slaughtered even more of the warriors. As the months drew on, eventually the remaining warriors would try to combat Grendel, or run and hide. Each warrior, young or old, met the same fate as those Grendel had killed on his first night. A gruesome and gory death awaited any and all who Grendel wanted to kill. Years began to pass, and Herot became abandoned, thus making Grendel the only inhabitant. No longer were stories told of the creation of the world, but instead of Grendel’s power and hatred. 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Organic Lab 7 free essay sample

The reaction occurs through a nucleophilic substitution, which is when a nucleophile replaces the leaving group in the substrate. In this lab, the hydroxyl group of t-butyl alcohol is replaced by a chlorine atom. The reaction proceeds through an SN1 mechanism (Weldegirma 38-41). â€Å"A nucleophile is any neutral or uncharged molecule with an unshared pair of electrons. In the substitution reaction, the nucleophile donates an electron pair to the substrate, leading to the formation of a new bond to the nucleophile, while breaking the existing bond to the leaving group† (Solomons and Fryhle 99-102). The two types of nucleophilic substitution reactions, SN1 and SN2, are identified based on whether the different steps occur simultaneously (SN1) or in two separate steps (SN2). To synthesize the t-butyl chloride, the t-butyl alcohol goes through an SN1 reaction. Also, the nature of the solvent can affect which substitution reaction will occur. Polar protic solvents typically favor SN1 reactions. We will write a custom essay sample on Organic Lab 7 or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page This is because the SN1 mechanism is carried out in two steps and the polar protic solvent produces both a cation and an anion which are capable of stabilizing the charges on the ions formed during the reaction. Because an SN2 reaction occurs in one step, this is unfavorable; however, the SN2 reactions tend to favor polar aprotic solvents. Another factor affecting the type of substitution reaction is the nature of the leaving group. Since the SN1 reactions occur in one step, they generally require an excellent leaving group and won’t typically run with a poor leaving group. The SN2 reaction also favors excellent leaving groups but can run with any type of leaving group because it is run in two different steps. To synthesize the t-butyl chloride, the t-butyl alcohol goes through an SN1 reaction. Weldegirma 38-41). Mechanism of the preparation of tert-butyl chloride: Possible side reaction during the preparation of tert-butyl chloride: Experimental Section/Flow Chart: Part 1: 60mL separatory funnel + cooled 15mL of concentrated HCl to 0? C + added 15mL of HCl to separatory funnel + added 5mL tert-butyl alcohol +swirled it without the stopper for 20 minutes + let stand until two distinct layers were formed + drained lower layer into Erlenmeyer flask and saved just incase Organic Layer- in separatory funnel +added 30mL of DI water + swirled for a few minutes let stand until two distinct layers formed + drew off lower layer into Erlenmeyer flask and saved just incase Organic Layer- in separatory Funnel + added 15mL of 5% sodium bicarbonate + shook with stopper with venting + let stand for a few minutes until two distinct layers formed + drew off lower layer into Erlenmeyer flask and kept just incase Organic Layer- in separatory funnel + added 15mL of water + swirled for a couple minutes + let stand until two distinct layers have formed + drew off lower layer into Erlenmeyer flask and kept just incase Organic Layer transferred product layer into clean/dry 125 mL Erlenmeyer flask + added 1. 5 grams of anhydrous calcium chloride to dry the product +decanted into round bottom flask + added 6 boiling stones + ran through a simple distillation Tert-Butyl Chloride Part 2- T est tube #1- + added . 1mL tert-butyl chloride from part 1 + added 1mL of NaI + shook while holding top of test tube with finger + recorded time, look, color, etc. Negative Result Test Tube #2- + added . 1mL tert-butyl chloride from part 1 + added 1mL of AgNO3 + shook while holding top of test tube with finger recorded time, look, color, etc. Positive Result Test Tube # 3- + added . 2mL tert-chloro butane + added 1mL of NaI + shook while holding top of test tube with finger + recorded time, look, color, etc. Positive Result Test Tube #4- + added . 2mL tert-chloro butane + added 1mL of AgNO3 + shook while holding top of test tube with finger + recorded time, look, color, etc. Negative Result Table of Chemicals: Table of Chemicals 1: Table of Chemicals 1: Chemical Name-| Physical Properties- | Chemical Properties- | Tert-Butyl Alcohol-| M. P. -25-26 ? CB. P. 82-83? CMolecular Weight- 74. 2 g/molWater Solubility- miscible| Combustible- noFlammable- yes| Hydrochloric Acid-| M. P. -114 ? CB. P. -85. 05? CMolecular Weight-36. 4 g/mol| Combustible- yesFlammable- no| Sodium bicarbonate-(Chembook) (Chembook) | M. P. 50? CB. P. 851? CMolecular Weight- 84 g/molWater Solubility- 9 g/ 100mL| Combustible- noFlammable-no| Table of Chemicals 2: Table of Chemicals 2: Tert-butyl chloride-| M. P. -26? CB. P. 51? CMolecular Weight- 92. 57 g/molWater Solubility- sparingly| Combustible- noFlammable-yes| Anhydrous calcium chloride- | M. P. 772? CB. P. 1935? CMolecular Weight- 110. 98 g/molWater Solubility- 74. 5 g/ 100mL| Combustible- yes/ slightlyFlammable- no| Silver nitrate-| M. P. 212? CB. P. 444? CMolecular Weight- 169. 87 g/molWater Solubility- 122 g/100mL| Combustible- noFlammable- no| Sodium iodide-(Chembook) (Chembook) | M. P. 661? CB. P. 1304? CMolecular Weight- 149. 89 g/molWater Solubility- 178. 8 g / 100mL| Combustible- noFlammable- no| Table of Chemicals 3: Table of Chemicals 3: 1-chlorobutane- (Chembook) (Chembook) | M. P. -123? CB. P. 78? CMolecular Weight- 92. 57 g/molWater Solubility- . g/L| Combustible- YesFlammable-Yes| Results: Percent Yield- t-butyl alcohol: Density = Mass/Volume : M= . 842 x 5 = 4. 21 grams Mass/ M. W. = # moles : 4. 21 g / 74. 12 g/mol = . 0568 moles of t-butyl alcohol t-butyl chloride: Density = Mass / Volume : M= . 397 x 2 = . 794 grams mass / M. W. = # moles: . 794 g / 92. 57 g/mol = . 00858 moles of t-butyl chloride Because of a 1:1 ratio then you can use actual / theoretical x 100 . 00 858 moles / . 0568 moles x 100 = 15. 105 % Results Table 1: Results Table 1: | Color| Precipitate appearance| Time of precipitate| After warm water (50? C) bath| Positive or Negative Result| Test Tube # 1- T-butyl chloride amp; NaI| Clear/ faint tint of yellow| No precipitate| Over 6 minutes and still no precipitate| Nothing occurred after 6 minutes in the steam bath| Negative Result| Test Tube # 2- T-butyl chloride amp; AgNO3| Cloudy and white| Yes, small solid particles| . 8 seconds| N/A| Positive Result| Test Tube # 3- t-chloro butane amp; NaI| Slightly cloudy with initial drop but quickly turned clear| No precipitate after 6 minutes| 6 minutes RT, for steam bath 4 minutes 58 seconds| Yellow solution as well as white precipitate on bottom formed. Positive Result| Test Tube #4- t-chloro butane amp; AgNO3| Clear colorless liquid| No precipitate| 6 minutes RT, 6 minutes steam bath| No precipitate| Negative Result| Discussion: Throughout this lab, the main goal was to properly create a t-butyl chloride. In order to test if we properly received our product we tested the sample with two different solvents, a solvent of sodium iodide and silver nitrate. If an alkyl halide is a tertiary one, it can easily react with a solvent of silver nitrate to generate a relatively stable tertiary carbocation through an SN1 reaction. If an alkyl halide is a primary one, it can then react with iodide ions in the sodium iodide solvent by an SN2 mechanism showing a precipitate of insoluble sodium chloride. Heat can also be used in this process to speed up the reaction (Weldegirma 38-41). The first test we ran was t-butyl chloride and sodium iodine. After mixing the two compounds, there was only a slight tint to the liquid but remained clear and precipitate free for 6 minutes of being room temperature. We then placed it in a warm water in which there was no precipitate that formed while being heated. This test yielded a negative result. The second test that we ran was t-butyl chloride and silver nitrate. Directly after mixing the compounds, there was an immediate white precipitate that had formed. This test yielded a positive result. A negative result with sodium iodide and a positive result of silver nitrate concluded that our solution of t-butyl chloride was a pure tertiary alkyl halide. Our third test was run with t-chloro butane and sodium iodide. This test initially did not form a precipitate while it was kept at room temperature. We then used a warm water bath in which after 5 minutes the solution formed a white precipitate and a yellow liquid. This shows that this test was a positive test. The fourth test was with t-chloro butane and silver nitrate. This test did not form a precipitate at room temperature or during the steam bath. This shows a negative result. With the t-chloro butane, the negative result with silver nitrate and the positive result of sodium iodide prove that this is indeed a primary alkyl halide. Conclusion: In this lab, we properly carried out an SN1 reaction from t-butyl alcohol to t-butyl chloride and found that we did in fact create a t-butyl chloride by getting a positive result from our silver nitrate test in the end. Although we weren’t able to visibly see with our eye the nucleophilic attack, the steps that we carried out in the lab showed the separated layers and that there were reactions going on during each step. The organic layer that was continuously washed was undergoing the slow reaction process during each separating stage. In the end, after the distillation of the solution, the SN1 reaction was completely carried out. The information from this data has revealed that it is possible to carry out an SN1 reaction in a lab; however, in the process of washing the product there will be a lot of material lost giving a low percent yield in the end. It would be smart to use chemicals that are inexpensive and in large quantities to carry out these types of reactions. The information and techniques performed in this lab could be applied to other situations in an industrial setting. One example of this could be creating chlorofluorocarbons which used to be produced for aerosol cans and other products. Although these are no longer widely used in the world due to ozone effect, the SN1 reaction could be done with these chemicals. Overall, the lab accomplished what it was set out to do. References: Chemical Book. 2008. lt;http://www. chemicalbook. com/ProductIndex_EN. aspamp;xgt;. Solomons, T. W. Graham, and Craig Fryhle. Organic Chemistry. 10th. 1. New Jersey: John Wiley amp; Sons, Inc. , 2011. 99-102. Print. Weldegirma, Solomon. Experimental Organic Chemistry. Mason: Cengage Learning, 2012. 38-41. Print.

Hoist With His Own Petard

Hoist With His Own Petard Hoist With His Own Petard Hoist With His Own Petard By Maeve Maddox I think Keith Olbermann may have had something to do with popularizing this Shakespearean expression. In July 2005 Olbermann, writing about the London bus bombing, wrote: July 21st may turn out to be the day the terrorists began to blow themselves up - hoist themselves, as the Middle English phrase goes, â€Å"on their own petard.† I cant guess why he called it a Middle English phrase. The expression, meaning blown up by his own bomb, comes from Shakespeares time (1605). By then, Middle English had morphed into Modern English. As recently as Election Eve 2008, Olbermann was still using the phrase: Im trying to give Gov. Palin out there, a couple more seconds to figure out how she managed to get herself, as Shakespeare wrote of people destroyed by their own evil plans, hoist with her own petard.† Keith Olbermann October 31, 2008 Here is how the expression is used in Hamlet (III, iv, 206-208): For tis the sport to have the enginer Hoist with his own petar, ant shall go hard But I will delve one yard below their mines, And blow them at the moon. Hamlet is talking about his old college chums Rosencrantz and Guildenstern. Theyve been spying on him for the king, and Hamlet suspects they are laying a trap for him. Hes planning his own preà «mptive strike. A petar was an explosive device. It got its name from the French verb pà ªter, which means to break wind. The Old French noun pet means fart. Shakespeare was making one of his earthy puns here. Note that in the original expression, hoist is a verb in the past tense. Writers who want to use the expression correctly need to keep that fact in mind. The hoist of current English usage retains the same meaning, to raise, to lift up, but in modern usage, the past tense form has been regularized to hoisted. Ex. The crane hoisted the girder into place. Commentators who dont know their Shakespeare get it wrong: The amusing context for this interview, was watching Keith Olbermann hoisted on his own petard. Donklephant, March 15, 2008. I mean who are the REAL victims here? CBS News has been hoisted on its own petard Cecelia, commenting on Dan Rather scandal, January 24, 2005. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Expressions category, check our popular posts, or choose a related post below:Has vs. HadAbstract Nouns from Adjectives25 Idioms with Clean

Definition and Examples of Rhetorical Schemes

Definition and Examples of Rhetorical Schemes Scheme is a term in classical rhetoric for any one of the figures of speech: a deviation from conventional word order. Here are examples of scheme in use by famous authors, as well as definitions from other texts: Examples and Observations Schemes include such devices as alliteration and assonance (that purposefully arrange sounds, as in The Leith police dismisseth us) and antithesis, chiasmus, climax, and anticlimax (that arrange words for effect, as in the cross-over phrasing One for all and all for one).(Tom McArthur, The Oxford Companion to the English Language. Oxford Univ. Press, 1992)There is a theory dating back to classical times that rhetorical figures or schemes originated as forms of expression used naturally by people in states of extreme emotion (Brinton 1988:163), that they are, in fact, imitative of emotional states. . . . Thus, rhetorical figures of omission, unusual word order or repetition are held to be imitative of actual disturbances of language in emotional contexts, which, in turn, reflect feelings and emotional states such as anger, grief, indignation or consternation...Now while it is undoubtedly true that such schemes as aposiopesis (breaking off an utterance before it is completed), hyperbat on or repetition are frequently related to emotional states, it must also be realised that the whole reservoir of rhetorical schemes represents a system which provides a multitude of possibilities of expressing meanings, among which emotions form only one variety.  (Wolfgang G. Mà ¼ller, Iconicity and Rhetoric, The Motivated Sign, ed. by Olga Fischer and Max Nnny. John Benjamins, 2001) Functions of Schemes In addition to structuring reality, the schemes help writers organize and orchestrate their relationships with readers. As vehicles for social interaction, they can Signal the level of formality (high, middle, low) as well [as] local shifts across these levels;Control the emotional intensity of prosecranking it up here, ratcheting it down there;Showcase the writers wit and command over his or her medium;Enlist readers into collaborative relationships, inviting them to desire the completion of a pattern once they get its gist (Burke, Rhetoric of Motives 58-59).    (Chris Holcomb and M. Jimmie Killingsworth, Performing Prose: The Study and Practice of Style in Composition. SIU Press, 2010) Tropes and Schemes in The Garden of Eloquence [Henry] Peacham [in The Garden of Eloquence, 1577] divides his treatment of figurative language into tropes and schemes, the difference being that in the Trope there is a chaunge of signifycation, but not in the Scheme (sig. E1v). Tropes are further divided into tropes of words and sentences, and schemes are also divided into grammatical and rhetorical schemes. Grammatical schemes deviate from customs of speaking and writing and are subdivided into orthographical and syntactical schemes. Rhetorical schemes add distinction and doe take away the wearinesse of our common and dayly speach, and doe fashion a pleasant, sharpe, evident and gallant kinde of speaking, giving unto matters great strength, perspecuitie and grace (sig. H4v). Rhetorical schemes apply to words, sentences and amplification. (Grant M. Boswell, Henry Peacham. Encyclopedia of Rhetoric and Composition: Communication From Ancient Times to the Information Age, ed. by Theresa Enos. Routledge, 2010) Etymology From the Greek schema   , form, shape Pronunciation: SKEEM Also Known As: figure