How the Human Brain Stores and Retrieves Memory Essay

Memory is the ability to encode, store and recall information. The three main processes involved in human memory are therefore encoding, storage and recall (retrieval). Additionally, the process of memory consolidation (which can be considered to be either part of the encoding process or the storage process) is treated here as a separate process in its own right. Encoding is a biological event beginning with perception through the senses. The process of laying down a memory begins with attention (regulated by the thalamus and the frontal lobe), in which a memorable event causes neurons to fire more frequently, making the experience more intense and increasing the likelihood that the event is encoded as a memory. Emotion tends to increase attention, and the emotional element of an event is processed on an unconscious pathway in the brain leading to the amygdala. Only then are the actual sensations derived from an event processed. Consolidation is the processes of stabilizing a memory trace after the initial acquisition. It may perhaps be thought of part of the process of encoding or of storage, or it may be considered as a memory process in its own right. It is usually considered to consist of two specific processes, synaptic consolidation (which occurs within the first few hours after learning or encoding) and system consolidation (where hippocampus-dependent memories become independent of the hippocampus over a period of weeks to years. Storage is the more or less passive process of retaining information in the brain, whether in the sensory memory, the short-term memory or the more permanent long-term memory. Each of these different stages of human memory function as a sort of filter that helps to protect us from the flood of information that confront us on a daily basis, avoiding an overload of information and helping to keep us sane. The more the information is repeated or used, the more likely it is to be retained in long-term memory (which is why, for example, studying helps people to perform better on tests). This process of consolidation, the stabilizing of a memory trace after its initial acquisition, is treated in more detail in a separate section. Recall or retrieval of memory refers to the subsequent re-accessing of events or information from the past, which have been previously encoded and stored in the brain. In common parlance, it is known as remembering. During recall, the brain â€Å"replays† a pattern of neural activity that was originally generated in response to a particular event, echoing the brain’s perception of the real event. In fact, there is no real solid distinction between the act of remembering and the act of thinking.

Musaabir Laiyemo Essays - Education, Health, Nursing, Free Essays

Musaabir Laiyemo Essays - Education, Health, Nursing, Free Essays Musaabir Laiyemo Professor Atkins ENGW 104 038 November 22 , 2015 Critical Writing Redefined Much can be said about the debate between academic and critical writing. I believe academic writing is any writing that is done for a class in a high school, college, or university and follows a particular guideline. Critical writing would be writing that is done to analyze and critique anything that the writer d eems fit . This includes but is not limited to books, plays, art, speeches, sports events, or even a normal conversation. In regards to my major, nursing, critical writing would be writing that it done to analyze and critique a paper and understand the reason why the author chose to write it. These two forms of writing have a couple of similarities and differences that distinguish what their purpose is. Academic and critical writing are two forms of literary writing that analyze and respond to events or texts for different reasons in different ways. As stated in the introduction, I believe that critical writing is writing that is done to analyze, critique, and comment on the stren g th of the argument of an event . While critical writing is usually associated with being done in response to literary work, it could be done in response to anything at all. In regards to my major (nursing) critical writing could be writing that is done to analyze and examine anything within nursing as long as it relates to the field. For example, "The Politics of Intimate Care: Gender, Race, and Nursing Work" by Charissa J. Threat is a prime representative of critical writing within nursing. This article critically examines the history of nursing and analyzes what made the field predominately female the way it is today. To accurately redefine what critical writing is in nursing, one would have to have a knowledge of what critical writing is and have experience reading and writing papers on the topic. This form of writing would be done solely for those who are in the nursing field and have a certain understanding and knowledge about the topic. This is because it would contain a lot of jargon that anyone outside of the field may not understand. While a certain form of critical writing would only be for those in the nursing field, critical writing can exist in any format. The same article that can be published in a medical/nursing journal can also be published in an everyday magazine like People or Us Weekly. However, it'd have to be written differently because the target audience isn't the same. A lot more common and simpler words would have to be used so the mainstream audience can understand. In "The Politics of Intimate Care: Gender, Race, and Nursing Work", Threat uses simple terms to describe early viewpoints on nursing. She analyzes the concept of nursing being meant for women because the actual nursing job is "inferior to medicine" (Threat 14) and women were considered to be inferior to men. Therefore, it was supposed to be the perfect job for women because they were supposed to be "cooperative, loyal, and obedient" (Threat 11) or something the y have been their whole lives. These commonly known words help str engthen her argument because the audience understands them and can now see her point of view better and take their own stand on the topic. Writers in nursing have a responsibility to their fellow peers to explain the topic that they are writing on and provide reasons for why it is important and should be taken seriously. The writer has to make sure that the topic that he or she is writing on is relevant and affects the lives of numerous people. On the other hand, writers who write for audiences outside of nursing have a harder job. These writers would have to make sure they explain what the topic is and why the audience should even read the piece of work. Moreover, the writer has the responsibility to avoid jargon and use common words to explain their topic while keeping the work fairly concise. They would also have to make sure the writing is engaging enough so that the reader doesn't put down the

Evolution On Earth essays

Evolution On Earth essays Evolution mean change in time. In biology, this means change in biological entities in time. Some may ask how did species come to populate the Earth? Where did the diversity of life that we have upon the Earth happen in time? If the definition of evolution is changing in time, then the opposite of evolution is, clearly, not changing in time, or stasis, which means to stay the some in time. Things either change in time, or they dont change in time. Those are the two opposites that must be considered when discussing evolution. Has the distribution of life on Earth change in time, or not change in time? If its change in time, then evolution is a fact; if it has not changed in time, then evolution is an error. So all we have to do is identify what has occurred in the past, in order to determine whether or not life has change over time. There is another question one could ask, How in time did life come to be on the Earth? One answer could be what science provides, according to certain rules that science choose to follow. Another answer could be God put life here. However, this is a statement that cannot be proven or disproved according to the rules of science, and it therefore is not a scientifically valid st atement. Science is agnostic on God; it takes no position on God. If we chose science and God (which many people do), then one rephrases the question slightly: How, according to the rules of nature, did God create life on Earth? This is really the same as how, according to the rules of nature, did life appear on Earth? which is the question every evolutionary scientist is trying to answer. Whether one believe in God or not, the results, when conducted scientifically, should come out the same. The idea of evolution is one of the truly great ideas humankind has ever expressed. Some people erroneously believe that the opposite of evolu ...

Star Wars Day! 4 Great Grammatical Mistakes from Hollywood

Star Wars Day! 4 Great Grammatical Mistakes from Hollywood Star Wars Day! 4 Great Grammatical Mistakes from Hollywood To celebrate Star Wars Day – slogan, â€Å"May the 4th Be With You† – we’re delving into the murky world of Hollywood movies. And while Tinsel Town might be a â€Å"Dream Factory† where fantasies are brought to life, it hasn’t always been a good grammatical role model. For example†¦ 1. Eight Legged Freaks Punctuation is often the first thing to go in a movie poster. Examples include the comma-less Burn Hollywood Burn and the missing question mark at the end of Who Framed Roger Rabbit. However, more worrying is the hyphen absent from Eight Legged Freaks. Maybe the spider dislodged the hyphen with its foot? (Warner Bros. Pictures) If this was a movie about giant spiders, as the poster suggests, the title should be â€Å"Eight-Legged Freaks.† But it isn’t, so we can only assume it’s about eight freaky people instead. The Pogues, maybe. 2. Honey, I Shrunk the Kids The more you think about it, the weirder â€Å"shrunk† sounds. (Walt Disney Pictures) We’ll give Honey, I Shrunk the Kids credit for knowing how a comma works. But this title still falls short. This is because â€Å"shrunk† is the past participle of â€Å"shrink,† while the simple past tense is â€Å"shrank.† As such, it should be called either Honey, I Shrank the Kids or Honey, I’ve Shrunk the Kids. In protest, we refuse to acknowledge Rick Moranis in any other role until this has been fixed. 3. Into the Wild While there’s nothing ungrammatical about the title of Into the Wild, the poster does feature the cryptic statement â€Å"Screenplay and Directed by Sean Penn.† What could this mean? â€Å"Hey guys, I’m just busy screenplaying this screenplay.† (River Road Entertainment) â€Å"Screenplay† is a noun, so â€Å"Screenplay by Sean Penn† would simply mean Sean Penn wrote the screenplay. And â€Å"directed† is a verb, so â€Å"Directed by Sean Penn† would be easy enough to understand. But put these together and we’re left with two unfortunate possibilities: Sean Penn thinks â€Å"screenplay† is a past tense verb. The poster designer didn’t care about grammatical parallelism. Neither option give us a lot of confidence in Hollywood’s proofreading. 4. Star Wars: The Force Awakens It’s Star Wars Day, so this list wouldn’t be complete without an appearance from the famous sci-fi franchise. And we’re going to pick on Star Wars: The Force Awakens. This movie is interesting for the lack of commas around â€Å"Luke† when they identify Leia’s brother in the opening text crawl. (Lucasfilm Ltd./Bad Robot Productions) As this article points out, we use parenthetical commas to add non-essential details, such as a name when we already know who a sentence is about. So, if Leia only had one brother, the opening crawl should say: She is desperate to find her brother, Luke, and gain his help†¦ The commas here show us that the name is an extra detail: we know who â€Å"her brother† is without saying â€Å"Luke† because Leia only has one brother. But the crawl in The Force Awakens says: She is desperate to find her brother Luke and gain his help†¦ And this opened up the possibility  that Leia had additional male siblings somewhere! Was J. J. Abrams hinting at something in the future of the Star Wars series? Unfortunately, the answer is â€Å"no.† Despite some excitement on the internet, it was just a punctuation error. But that’s still a more satisfying twist than the ending of Lost, so maybe we can give J. J. a pass on this one.

Nafta - hinderance or catalyst Essay Example | Topics and Well Written Essays - 4000 words

Nafta - hinderance or catalyst - Essay Example omises particularly because it has undermined the influence of states on public policy while promoting development models that enhance decentralized capitalism (Sieppert & Rowe 22). Consequently, this paper proposes that NAFTA has been a hindrance to Canada and should be replaced by a more equitable agreement for all the three states, or an international agreement that will enhance the general well-being and health of Canadian citizens regardless of geopolitical pressures in the region. This article provides an international analysis of NAFTA’s diverse effects in all the three member countries; the writers propose that the agreement has altered not only the economic, but also the social outcomes in each of the countries, Mexico, the United States, and Canada. Similarly, the paper addresses the major social justice effects of NAFTA, including issues of labour and migration, the implications for income distribution, outcomes touching on agriculture and the environment, as well as the implications for the health of citizens and health services in all the three countries (Sieppert & Rowe 6). Generally, the article regards these issues within the broader context of globalization but makes a set of recommendations from a social work perspective. This article is essential for this present assessment of the negative implications of NAFTA on the three countries, and Canada in particular because it shades light on the numerous shortfalls of the agreement, besides expl aining its foundations. Initially, the article highlights the origins of NAFTA, in the negotiations between the leaders of the three states, Prime Minister Brian Mulroney of Canada, President Carlos Salinas de Gortari of Mexico, and President George Bush of the U.S.A, which later led to its implementation in 1994. The article further outlines the initial intentions of NAFTA as liberalization of trade between the three countries while promoting economic cooperation as well as enhancement of investment

Are all waste products simply resources that have not been used yet Essay

Are all waste products simply resources that have not been used yet - Essay Example Waste products are made resources by the process of section, transportation, recycling and treatment. In addition, the system disposal is applied in determination of the number of recycle bins required to facilitate garbage collection at the curb. Nevertheless, the paper focuses on determining whether the waste products can be considered resources that have not been exploited. There has been a significant growth of governmental investment, among industrial sectors leading to increases of interest concerning Municipal Solid Waste MSW management projects. In this case, MSW management offers a vital opportunity for conversion of waste materials to resources. On the other hand, in order to convert waste materials to resources, there is need to understand the current situation experienced in MSW management (Hongtao & Yongfeng, 2001, 255). In fact, there are substantial factors playing a vital role in generation of MSW, which entail economic development, consumption rates, administrative s ystems, urban population and geographic location. However, the most important factors include the urban population and economic situation, which are considered a contributor to improvement of MSW quality. Waste products have been converted to resources through MSW for the last twenty years, thereby resulting to a change in the waste composition and an increase for waste. Therefore, value of waste based on increases of reusability is influenced by impacts of MSW components. Moreover, this entails domestic fuel used and other living standards, which are associated with the levels of composition. Some of identified sources of MSW include residential, municipal, institutional, commercial, and other attributes of the city that entail size, location and economic condition. There are high recyclable content gathered through MSW in exclusive residential districts; for instance, there are percentages of kitchen waste, ash and dirt, which are lesser than regular to inhabited district (Hongtao & Yongfeng, 2001, 259). On the other hand, there are other fractions of kitchen residue, thereby making up a higher portion of waste disposed by residential district. There is waste gathered from neighborhood as a high moisture content that has a lower calorific value. Historically, there is influence of waste composition based on the living standards of people living is various regions. Therefore, management of MSW has become a global issue due to its significance based on judgment made by mayors, county executives and city and country council broads. In fact, this decisions made by these actors has led to a significant impact on the emissions of greenhouse gas (GHG), thereby contributing to climatic changes (Weitz, Thorneloe, Nishtala, Yarkosky & Zannes, 2002, 1001). Waste caused CH4 emissions emanating from decomposition of biodegradable elements present in waste streams such as food scraps, yard trimming and papers, they have led to increased potential for global climatic chang es (Weitz, Thorneloe, Nishtala, Yarkosky & Zannes, 2002, 1002). Moreover, this is associated by the release of GHG, which is debated in the country and in other countries around the world. MSW management program is applied as a resource for reduction of GHG emission, whereby it is

Vietnam War Research Paper Example | Topics and Well Written Essays - 750 words - 1

Vietnam War - Research Paper Example in O’Brien’s â€Å"The Things They Carried†, but the author illustrates the base that Kiley used to be at in â€Å"The Sweetheart of Song Tra Bong†, which is comparable to the base at the Khe Sanh. O’Brien’s intention in the book is to portray on how the war changes people and even if we know the story, what happens inside their minds is still impossible to â€Å"truly† understand. O’Brien writes, â€Å"Fine with me. But you don’t know human nature. You don’t know Nam† (O’Brien 97). The author wants to emphasize that while people strive to understand each other, this attempt would only be limited to personal opinion, and there can be no truth in every individual understanding. O’Brien adds, â€Å"He couldn’t pin it down; her body seemed foreign somehow – too stiff in places, too firm where the softness should be† (99). It appears that the author is trying to evaluate the re sponses of people in the war against his personal views on how people should really behave during a war scene. But as aforementioned, the Battle of the Khe Sanh is one of the most controversial wars in history. Why? The war shows evidence of the fabrication of the American national identity. There are many misrepresentations of facts, particularly in the socio-cultural and political dimensions of the war. In order to obtain control over the infiltration routes south of the Demilitarized Zone and near the Ho Chi Minh Trail, the former French outpost along Khe Sanh was walled and nearly 6 thousand Americans and South Vietnamese were designated in order to secure the base (Browne, â€Å"Battlefields of the Khe Sanh†). In the succeeding passages, the display of horrific scenes including more than 150,000 projectiles and more than 100,000 pounds of explosive ordinance were released on the encompassing hillsides of once silent village of Khe Sanh (Clarke 185). The lush foliage will never go back to the valley that surrounded Khe Sanh and the pristine beauty that it used to have can no