The effect of traumatic events on memory

The effect of traumatic events on memory Memory Scientists have keen on pressuring secrete of memory for hundreds of years, undoubtedly, obliteration and inheritance are one of the most mysterious and romantic subjects. Dominick Cobb plants memory in Robert Fischer via a designed dream, changes his subconsciousness thus influences his reactions in reality, Inception. These kinds of stories are no longer restricted in friction movies. Nowadays memory is ahottopicinneuroscience,notonly enhancingit,but erasing or inheriting it. Before we explore how to delete traumatic event, it is necessary to briefly understand how our brain works to remember an event. Information transmits from the outside through our vision, auditory, olfaction, taste and tactile. Memory is the ways that we store and evoke items weve sensed. Different types of memories therefore stored differently. There is a structure in the brain called the hippocampus that is key to short-term memory, which only responses to the data that catches our attention (fire alert) or we need it soon (a telephone number). Long-term memory is much more complicated, it involves three main processes: encoding, reserve and retrieval. First of all, encoding: new concepts are broken down into composite parts to establish various meaning. Moreover, we collect the context around us when we receive a new conception, or another episode occurs in our life. For instance, I might associate the phrase beautiful flower with its key descriptive ideas —white color, faint scent smell, elliptical petal, floating in hometown pond — and thus such contextual memories as it is such happy summer that I’m swimming beside these lotus with my brother. Reserve: when we store the newly-caught episode, we attach it to any other related memories, such as similar to magnolia but living in the shallow water, and hence, consolidate the new conception with older memories. After above processes, we recall the conception, by tracing the various meaning codes stored in our brain and decoding these consolidated memories to regain a new meaning. If I forget what beautiful flower means, I might think of its relative pointer-hints, such as white or hometown pond. Pointers associate with other pointers that even a single hint may let me to recover the whole context. Then the following question is: how do our brains transfer a short-term memory like beautiful flower and into a long-term memory? We use hippocampus again; temporary links are constructed among cortex neurons due to a short-term memory event. For example, white gets stored in the visual region of the cortex, and the faint scent of a blooming flower gets stored in the olfactory area. When I remember the new fact, beautiful flower, it will converge on my hippocampus, which sends these new memory data along a established path several times to strengthen internal links. â€Å"The short-term memory flows alone the path, with the beginning at the hippocampus, circulating through several limbic systems (to pick up any timing associations like early morning on June 1st, and spatial associations like bond street station), then pass over various parts of the cortex, finally back to the hippocampus. Making the information flow around the circuit many times strengthens the links enough that they stabilize, and no longer need the hippocampus to bring the data together, says neuroscientistBruno Dubucof the Canadian Institutes of Neuroscience, Mental Health, and Addiction. â€Å"The strengthened memory paths, enhanced with environment connections, become a part of long-term memory.†[1] Recalling memories re-fires many of the same neural paths we originally used to sense the experience and, therefore, almost re-creates the event.[2] In other word, memory just like glass, it behaves plastically during storing memory and eventually fixes shape at the end of process. When we recall this memory, it will be abstracted and activated from the cortex, becoming soft and plastic again, memory reshapes its structure instead of the original one. Taken in this sense, theoretically, memory manipulation and obliteration are reasonable and realizable. When a distressing event occurs, a fearful memory created that could last a very long time period and depressingly affect a person’s life. Researchers from the University of Toronto trained mice to terror a sound by matching that sound with an electric shock to their feet, so when the sound rang, the mice would freeze in fear. This sense of feeling can be relieved by training called â€Å"extinction training†: repeatedly ringing the tone without adding electric shock. Behavioral therapy built around such â€Å"extinction training† in mice models has proven that it is useful in decreasing the degree of negative emotional response to a traumatic memory, however these fear memories commonly relapse and rarely can be completely removed via this kind of physical training. Further study focuses on the amygdala, a part of the brain located at the end of hippocampus, known to response to fear conditioning in both people and animals. Using sound to threaten the mice, they detected that certain cells in the nerve circuits in amygdala conducted much more current after playing a loud, sudden sound around the mice than they stay in a calm, normal environment.As for rodents, the neural functions capacitating fear memory formation and correspondently reconsolidation are situated in the amygdala. As for humans, brain and lesion imaging analysis confirm that most of fear memory mainly encoding in the key area—amygdala. Memories become labile when recalled. In humans and rodents alike, reactivated fear memories can be attenuated by disrupting reconsolidation with extinction training. Using functional brain imaging, we found that, after a conditioned fear memory was formed, reactivation and reconsolidation left a memory trace in the basolateral amygdala that predicted subsequent fear expression and was tightly coupled to activity in the fear circuit of the brain. In contrast, reactivation followed by disrupted reconsolidation suppressed fear, abolished the memory trace, and attenuated fear- circuit connectivity.[3] The team then observed and recorded the proteins in the certain nerve cells we mentioned before in the amygdala during the whole scary experiment. A sort of particular calcium-permeable proteins temporarily spiked in the lateral amygdale. Because these especial proteins are uniquely unsteady and able to be removed from the amygdala, the scientists suggested that fear memory might be permanently removed by combining protein removal and behavior therapy, which provides a opportunity for erasing fear. In further experiments, information revealed that eliminating these particular proteins depends on another chemical modification protein called GluA1. Now,whenhorrificsoundrang,themiceon longer felt fear and continuedtheirmouse-likeactivities.Neitherotherreserved memories, northeirabilitytosavenewmemories,wereinfluenced.Theeffectof using this biochemical method wasspecific,effectiveand long-lasting. Scientist notices that memory erasure can be achieved by using drugs designed to control and enhance the elimination of calcium-permeable protein. Another interesting property of memory is inheritance. Behaviour can be affected by events in previous generations which have been passed on through a form of genetic memory. Experiments showed that a traumatic event could affect the DNA in sperm and alter the brains and behaviour of subsequent generations. [4] Currently a neuroscience studyreveals that after training a group of mice to avoid a particular smell; their aversion could pass on to their descendents. Scientists said that the results were essential for fear and anxiety memories research. The mice were trained to panic a cherry blossom smell. The further study focused on internal structural changes inside the mice sperm. The team at the Emory University School of Medicine, in the US, pointed out that a section of DNA which might responsible for olfactory sensitivity was activated in the mice’s sperm. Both the mice and their â€Å"grandchildren† were particularly sensitive to cherry blossom scent and would try their best to avoid this smelling, despite never having experienced cherry blossom in their lives. Another significant change occurs in brain structure. â€Å"The experiences of a parent, even before conceiving, markedly influence both structure and function in the nervous system of subsequent generations, the report concluded.[5] This experiment provides convictive evidence that a traumatic event or a specific environment can affect an individual’s genetics and, by this means, genetic memory will pass on their offspring thus affect their behaviour in the future. This statement probably explains why picky eater avoids particular food. Did you ever resist such kinds of food as ginger, eggplant, celery or garlic since you born? Asking your parents and finding out the possible reasons. This sort of bias is seen as family fear. Descendants sometimes reveal imprints of their ancestor. â€Å"There is absolutely no doubt that what happens to the sperm and egg will affect subsequent generations. Prof Marcus Pembrey, from University College London, â€Å"the findings were highly relevant to phobias, anxiety and post-traumatic stress disordersHe commented: It is high time public health researchers took human transgenerational responses seriously. I suspect we will not understand the rise in neuropsychiatric dis orders or obesity, diabetes and metabolic disruptions generally without taking a multigenerational approach. [6] Reference: [1]: The brain from top to bottomby Bruno Dubuc, Canadian Institutes of Neuroscience, Mental Health, and Addiction [2]: Spatial short-term memory pinpointed in human brain, National Health Institutes, 1998. [3]: Thomas Agren, Jonas Engman, Andreas Frick, Johannes Bjà ¶rkstrand, Elna-Marie Larsson, Tomas Furmark, Mats Fredrikson. Department of Psychology, Uppsala University, SE-751 42 Uppsala, Sweden.Department of Radiology, Oncology and Radiation Science, Uppsala University, SE-751 42 Uppsala, Sweden. [4]: James Gallagher, BBC News, Thu, 05 Dec 2013 19:34 CST [5]: Brian G Dias Kerry J Ressler, Nature Neuroscience, 01 December 2013 [6]: Marcus Pembrey, University College London

Prejudice Definition Essay

During the process of communication the vast majority of people judge cultural values in their own image and likeness. Their ethnic and cultural values serve as a criterion for judgment. Really, it is slightly confusing but the main reason for watching the foreign programming is to let the viewer ‘feel’ ethnocentrism. Some things or even an overwhelming majority of what you will see in the foreign film of program will feel a bit ‘off’ or even downright ‘wrong’ for an average American. This feeling occurs due to ethnocentrism. The paper examines how such an attitude can have influence on an individual’s behavior and response from another culture, how society wide ethnocentrism can affect relationships and understandings of other societies, and how it can have an adverse impact on business practices for multinational corporations. Japanese version of the foreign film â€Å"Shall We Dance† will be used as an illustration for some aspects of the paper. Ethnocentrism is a psychological reaction, which occurs when a representative of one culture perceives, sees, values and tries to understand other cultures and their behaviors through prism of his own culture. The person considers the elements of his own culture (standards, roles, values, etc) as natural and â€Å"right†, while the elements of other cultures and nations are considered to be unnatural and â€Å"wrong†. The customs and traditions of his own culture are considered to be â€Å"universal† and â€Å"right† as well. The film â€Å"Shall We Dance† by Masayuki Suo tells us the story of Shohei Sugiyama, who falls in love but not in other woman (being married), but in the art of dancing. When we watch the film, we feel the differences between Japanese and American cultures. Japanese culture seems to be very odd, alien and strange, as the world of dance socials and private lessons is considered ‘shameful’ and ‘improper’ for a Japanese person. The film gets insight into Japanese customs and traditions, explaining that in Japan married couples are more reserved in relation to each other and rarely express their emotions in public (e.g. never say ‘I love you’, or hold hands, etc.). The American nation, on contrary, is more emotional and more ‘open’, therefore we feel really odd while watching the movie. The ethnocentrism that occurs in result of watching the foreign programming evidently has an impact on our behavior. Probably, to a certain extent we are unable to understand the behavior of other cultures in a manner different from that one dictated by our own cultural environment. So, how such an attitude can have influence on a person’s behavior and response from another culture and how society wide ethnocentrism can affect relationships and understandings of other societies? As with any social-psychological phenomenon, ethnocentrism cannot be examined as entirely positive or entirely negative. Although ethnocentrism often put obstacles in the way of intergroup (intercultural) communication, it supports positive ethnical identity and keeps the integrity and specificity peculiar to a certain culture. At the same time, ethnocentrism is inevitable part of our live being a logical consequence of socialization and familiarization with another culture and understandings of other societies. The person’s response predominantly occurs in the form of comparison – a peaceful nonidentity. Yet, ethnocentrism can have an adverse impact on business practices for multinational corporations, because it often impedes effective intergroup (interethnic and international) communication (Allport 1954). Interethnic comparison can be expressed in the form of contraposition or setting off (e.g. the people deny intercultural differences; proclaim their culture to be superior; sometimes people perceive cultural differences as something that imposes a threat to their existence and try to withstand them, often resulting in conflicts between different cultures, etc) that, in its turn, implies at least preconception and prejudice in relation to other cultures and has an adverse impact on business practices for multinational corporations. References Allport, G. W. (1954). The Nature of Prejudice. Garden City, NY: Doubleday

What the In-Crowd Wont Tell You About How to Write a Cause and Effect Essay Samples

What the In-Crowd Won't Tell You About How to Write a Cause and Effect Essay Samples Want to Know More About How to Write a Cause and Effect Essay Samples? In the event you need your customized cause and effect essay accomplished by a non-native English speaker, you will create that option and we'll provide you with a writer best suits your writing needs. Discursive essay writing isn't a problem if you write it with the aid of our professional custom writing service, which is readily available for you twenty-four hours each day and seven days per week. All ideas can merge into a comprehensive puzzle and you'll be prepared to finish your essay in one hour or two. The cause and effect essay outline will serve you as a guide for the remainder of the paper. The Most Popular How to Write a Cause and Effect Essay Samples In the event you're indecisive to pay a person to compose your essay, explore other facets of our websites or contact our support team for any extra guidelines. 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Is It Power of Words Which Destroy Othello or His Own Hubris

Is it power of words, which destroy Othello or his own hubris? Othello is one of Shakespeare’s finest plays, as it concentrates on a courageous’ general’s demise, physically and mentally. It could be argued that Othello bought his destruction on himself, by allowing himself to be poisoned by â€Å"Honest† Iago’s fluent rhymes of lies. However I will argue that it is infact his hubris, his overwhelming pride which infact causes his inevitable demise. Harmatia is a term which was developed by Aristotle and is essentially the main principle when making a tragedy, it is usually translated as â€Å"Tragic flaw† it is the idea that the hero’s downfall is partially his fault, in this case Othello’s, it comes from free choice. And not of accident nor†¦show more content†¦No, I think Shakespeare meant for Iago to be seen as a significant part in Othello’s down-fall, but not the sole reason for his tragic demise. As Iago states the reason behind his hatred of Othello, it’s Othello’s hubris which is being described, how he â€Å"Off-capp’d† the three great ones of the city. Which shows that is is Othello’s hubris which leads him to his downfall, and not the power of words. Shakespeare shows his audience Othello’s hubris, the Achilles heel in the marvelous, war mongering general. In Act 1, traitorous Iago ‘warns’ Othello of the on coming men, seeking to harm him. However Othello replies back, boasting about his title, â€Å"My services which I have done the signiory shall out-tounge his complaints† This statement shows Othello has a lot of pride in himself, and his title, to the extent which he believes he is untouchable by the law and that the council of Venice won’t allow anything to harm him, as he is Othello. â€Å"My parts, my title, and my perfect soul shall manifest me rightly† This pride, is the actual downfall in Othello, as he didn’t choose to promote his ‘loyal friend’ Iago which in turn hurt Iago’s pride, and forced him to act upon Othello by poisioning his naà ¯ve mind with treacherousShow MoreRelated The Manipulation of Gender Roles in Shakespeare’s Othello Essay47 56 Words   |  20 PagesThe Manipulation of Gender Roles in Shakespeare’s Othello Of Shakespeare’s great tragedies, the story of the rise and fall of the Moor of Venice arguably elicits the most intensely personal and emotional responses from its English-speaking audiences over the centuries. Treating the subject of personal human relationships, the tragedy which should have been a love story speaks to both reading and viewing audiences by exploring the archetypal dramatic values of love and betrayal. The final sourceRead MoreAnalysis of how Macbeth changes2776 Words   |  12 Pagesï » ¿Macbeth by William Shakespeare is the story of how one mans hubris destroys him. From it, we can extrapolate and comment on how in society people have a choice. We can live a life of altruism, valour and nobility or one fuelled by ambition, greed and violence. Macbeths journey from the former to the later showcases to the audience the dangers of selfishness. It prompts us to question our view of life – do we succumb to the false promises of evil, as tempting as the y are, or do we remain defiantRead MoreWilliam Shakespeare and Macbeth8813 Words   |  36 PagesFall of Man The ancient Greek notion of tragedy concerned the fall of a great man, such as a king, from a position of superiority to a position of humility on account of his ambitious pride, or  hubris. To the Greeks, such arrogance in human behavior was punishable by terrible vengeance. The tragic hero was to be pitied in his fallen plight but not necessarily forgiven: Greek tragedy frequently has a bleak outcome. Christian drama, on the other hand, always offers a ray of hope; hence,  Macbeth  ends