The ways neurons function helps Essay Example for Free

The ways neurons function helps Essay Typically, this type of stimulus-response reflexive action involves a collection of neurons initiating and provoking responses across synaptic junctions into other neurons. Synaptic inter-neuronal communication has illuminated behavioural knowledge as malfunction at the synapse is thought to underlie psychological disorders such as mood disturbance (Toates, 2007). Electrical signals arriving at the synaptic cleft trigger the release of stored neurotransmitters which operate as chemical messengers advancing neuronal impulses towards the target neuron. Target neuron receptors are specific to particular neurotransmitters thereby prohibiting erroneous stimulation of any neighbouring neurons. Once occupied, the neurotransmitter effectuates either an excitatory or inhibitory response in the post-synaptic neuron thus achieving a chemical bridge to conduct electrical impulses translated from stimuli. The biological perspective assumes that neuronal activity forms the biological infrastructure for psychological experiences such as emotions and moods thus alterations to the neural system, particularly synaptic activity has the ability to alter behaviour and mood. Through manipulation of the specific properties of neurotransmitter release, availability and deactivation, medical therapies have been advanced. For example, diminished serotonin has been implicated in attention and mood disorders and delaying the re-absorption or re-uptake into the releasing neuron favours alleviation of depressive symptoms. The anti-depressive agent Prozac, capitalises on this process by selectively targeting seretonergic synapses to block serotonin reuptake, which results in increased bio-availability of serotonin and improved mood (Toates, 2007). The full range of human behaviour is more comprehensive than simple reflexive actions or low mood but the relevance of understanding neuronal function at a singular level becomes clear when the billions of individual neurons that make up the brain and combine to create the neural systems responsible for particular roles are considered. For example, invasive investigations in animal models have allowed researchers to isolate the receptive fields of specific neurons in the visual system permitting hemispheric and brain lobe functionality mapping. Comprehension in functional responsibility of brain lobes has translated into evidence supporting biological links with psychological experiences such as memory. Penfield and Rasmussen discovered that surgical patients disclosed vivid historical memories during electrical stimulation of the temporal lobe (as cited in Toates, 2007) and electrical stimulation can now be administered through permanent implants in specific areas of the brain for relief of chronic pain. Alteration of the neural sequence is achieved by either reducing activity in pain related neurons or increasing electrical activity in neurons associated with positive emotions (Toates, 2007). Further supporting evidence for biological influence over behaviour is found in incidents of extensive brain damage resulting in significant alterations to temperament with famous examples such as Phineas Gage enlightening aspects of behavioural science. Surviving an industrial accident that involved prefrontal lobe damage, Gage exhibited little deterioration to intellectual and linguistic abilities but marked transformations in personality, previously considered out of character. Thus, whilst the brain and nervous system exhibit remarkable properties of functional continuation despite insult, focal damage, in this case to the region responsible for inhibition of emotional expression can produce pronounced effects on behaviour lending support to a biological explanation for some aspects of behaviour. Evidence from diseased and damaged brains provides support for biological perspectives ascribing behaviour through physiology but some aspects of human behaviour do not portray a clear uni-directionality of effect. Whilst the efficacy and mode of action of pharmaceutical agents such as Prozac implicate neuro-chemical involvement in depression, patient response is distinctively individual and Anisman and Zacharko demonstrated that external factors such as stress could contribute to the development of depression in individuals with little biological pre-disposition (as cited in Toates, 2007, p. 278). Even the mitigation of pain has been shown by Wall to be contingent on anticipation of relief in patients administered inert substances rather than Morphine (as cited in Toates, 2007, p. 261). It would appear that individual beliefs and attitudes can be as important to outcomes as bio-chemical engineering. Research at a biological level augments understanding of human behaviour and has importantly led to treatments and remedies for some conditions through modification to neural function. However, an exclusively reductionist approach appears insufficient in the face of evidence highlighting the reciprocal effect of social, environmental and experiential factors.

Essay on Flight in Song of Solomon -- Song Solomon Toni Morrison essay

Theme of Flight in Song of Solomon    Clearly, the significant silences and the stunning absences throughout Morrison's texts become profoundly political as well as stylistically crucial. Morrison describes her own work as containing "holes and spaces so the reader can come into it" (Tate 125), testament to her rejection of theories that privilege j the author over the reader. Morrison disdains such hierarchies in which the reader as participant in the text is ignored: "My writing expects, demands participatory reading, and I think that is what literature is supposed to do. It's not just about telling the story; it's about involving the reader ... we (you, the reader, and I, the author) come together to make this book, to feel this experience" (Tate 125). But Morrison also indicates in each of her novels that images of the zero, the absence, the silence that is both chosen and enforced, are ideologically and politically revelatory. Morrison's male characters ... imagine themselves in flight and are almost all in love with airplanes. ... In the tradition of black literature since Richard Wright's Native Son, however, the privilege of flight, at least in airplanes, is mostly reserved for white boys. Black males, in Morrison, fly only metaphorically, and then only with the assistance and the inspiration of black women. According to Baker, in his aptly titled "When Lindbergh Sleeps with Bessie Smith," "flight is a function of black woman's conjure and not black male industrial initiative" (105). ... Song of Solomon opens with the image of attempted flight, as Robert Smith, ironically an agent of the North Carolina Mutual Life Insurance company, promises to "take off from Mercy and fly away on my own wings" (3). Pilate (P... ... style and in an attempt to discount linearity as a value.) It would be worse than useless, for example, to talk about "plot development" in Morrison's novels; there is plot, certainly, but its revelation culminates or evolves through a process of compilation of multiple points of view, varieties of interpretation of events (and some of these contradictory), through repetition and reiteration. As there is no "climax," in the usual sense, so also there is no resolution, no series of events that can conveniently be labeled "beginning, middle, end." Works Cited: McKay, Nellie, editor, Critical Essays on Toni Morrison, G.K. Hall, 1988. Morrison, Toni. Song of Solomon. New York: Penguin Books, 1987. Rigney, Barbara Hill. The Voices of Toni Morrison, Ohio State University Press: Columbus, 1991. Tate, C., ed. Black Women Writers at Work, Continuum, 1986.

Comic Outline

Shays Rebellion brought debates over the constitution. People were fighting about Shays Rebellion because they were unhappy. They were unhappy because they believed they were not getting the freedoms they deserved. Shays Rebellion got Its name after a guy named Daniel Shay. He was a farmer who refused to pay taxes on his land because he believed he should not have to. So, when they came to take it away he put up a fight.Daniel Shay rebelling gave others the guts to stick up for what they wanted as well. This was being discussed In the court because people started to voice their disagreements with The Articles of Confederation since Daniel Shay did. Block 2-After Shays Rebellion This block shows where the next convention took place. There was obviously a problem with the articles. Originally the meeting was to fix the articles, but instead they created something completely different. Block 3-Articles of Confederation The third block represents the constitutional convention and people arguing about whether or not the U.S government should be ran on The Articles of Confederation. It was written so that the united States had rules to abide by and to finally have some of their own law In order. The Articles had many problems with It though, With It congress has no right to tax, they also had no power to regulate foreign and interstate commerce, there was no national court system, and several others. Block 4- Virginia Plan The fourth block Is showing representatives of Virginia coming up and having a plan that they believe will solve a ma]orally of the Issues.The purpose of the Virginia Plan was to protect the large states' interests in the new government. Many smaller states disagreed with this. Block 5-Virginia Plan Problems This block represents the problems with the Virginia Plan. Obviously the main Issue which all the delegates could tell right away was the unfair advantage the larger states got. They had this idea that every state would only have two representa tives which was not in the smaller states favor again. Block 6- New Jersey Plan The sixth block has delegates coming up to the stand to speak on behalf of the reports of the New Jersey Plan.In this block It also shows how Connecticut also had a plan yet it was ignored and was not even acknowledged. That is showed by the delegate representing the Connecticut Plan with his hand up yet not being acknowledged. The NJ Plan was brought up after the Virginia Plan, it was a way for the smaller states represent themselves and to also make sure that they got the liberties that they needed. Under the NJ Plan Congress had the power of setting and collecting taxes which some looked as good and others viewed as a negative.Block 7- Problems with the NJ Plan This block continues with the NJ Plan being discussed but people now are beginning to bring up the good and bad points on it, bad Including each state having the same number of representatives. Meaning a small group would have the same number a s 1 OFF possible to pass laws some laws that not all the people would agree with. Block 8- The Great Compromise The eighth block shows The Great Compromise finally being adopted after a week and a half and tons of discussion on July 16th.The Great compromise was a ambition of the New Jersey Plan and the Virginia Plan featuring the fact that none of them had enough good things about them for it to be adopted by itself. It can also be known as The Connecticut Plan because while coming up with it Connecticut finally got a voice. Block 9- How Great compromise led to the constitution Well first off it had a big impact on all states. They all agreed that they should have two senators and that they should have an equal amount of representatives. Which was a plus that they finally agreed on that because in both plans they had different opinions on that topic.When it was passed it brought hope and spirit to the people of the U. S. That hope helped to lead the idea of the Constitution. Block 10-The â€Å"Real Revolution† After The Great Compromise being accepted finally it solved several issues and allowed the states to finally have a government that seemed reliable. The Real Revolution was more than the War of Independence. It began before the war with Britain and it lasted until after due to the fact that it was a revolution worth fighting for. So, this block shows people getting along and agreeing happily for the first time in a long time.

A Short Story - 1749 Words

A solitary figure crossed the royal prison courtyard, his strides as purposeful as the reasons for visiting the penitentiary during the stale midnight hours. His slinky, weasel like features instantly became the source of ridicule from the quartet of guards standing at the entrance gate. The combination of their whispered insults and contemptuous laughter as the lanky man approached, were not well concealed. Without a doubt their lack of discretion was purposefully intentional and, obviously, the insults were blatantly meant to be overheard. All four guards remained at ease, unbothered and unwilling to come to attention even as the stranger stood directly in front of them and waited for some sort of response. The visitor surveyed the†¦show more content†¦The abusive guard now wore a face of shock and surprise, unsure of what else to say. Should I apologize to the little weasel and beg forgiveness, hoping the Queen will not know of this incident? the guard pondered. â€Å"Let him through!† was all he could muster. Gliding past the guards, the visitor thought nothing could wipe the smile from his face. The satisfactory feeling of besting Her Majesty’s most formidable sentries with mere words instead of sword, felt satiating and palpable. On entry into the bowels of the dungeon, the air changed drastically into a foul cloud of rot. Its smell wiped the smirk from the visitor’s face rather quickly. It stank rather badly of indescribable odors. Even for a man who had spent years living on the back streets of London, smelling its piss and shit, stepping into vomit and over scores of dead rats, working its filthy streets up until the day Master Dorne had hired him, this place was intolerable. A Jailer escorted the visitor through row after row of caged inmates. Some quiet, afraid, and withdrawn from ever yone. Others crazed, obnoxious and wild. They hooted and hollered, violently reaching out for his clothing. As covered in dirt as they still were, his garments looked brand new in comparison to theirs. The rows of single cages ended abruptly and broke off into a smaller hall linedShow MoreRelatedshort story1018 Words   |  5 Pagesï » ¿Short Stories:  Ã‚  Characteristics †¢Short  - Can usually be read in one sitting. †¢Concise:  Ã‚  Information offered in the story is relevant to the tale being told.  Ã‚  This is unlike a novel, where the story can diverge from the main plot †¢Usually tries to leave behind a  single impression  or effect.  Ã‚  Usually, though not always built around one character, place, idea, or act. †¢Because they are concise, writers depend on the reader bringing  personal experiences  and  prior knowledge  to the story. Four MajorRead MoreThe Short Stories Ideas For Writing A Short Story Essay1097 Words   |  5 Pageswriting a short story. Many a time, writers run out of these short story ideas upon exhausting their sources of short story ideas. If you are one of these writers, who have run out of short story ideas, and the deadline you have for coming up with a short story is running out, the short story writing prompts below will surely help you. Additionally, if you are being tormented by the blank Microsoft Word document staring at you because you are not able to come up with the best short story idea, youRead MoreShort Story1804 Words   |  8 PagesShort story: Definition and History. A  short story  like any other term does not have only one definition, it has many definitions, but all of them are similar in a general idea. According to The World Book Encyclopedia (1994, Vol. 12, L-354), â€Å"the short story is a short work of fiction that usually centers around a single incident. Because of its shorter length, the characters and situations are fewer and less complicated than those of a novel.† In the Cambridge Advanced Learner’s DictionaryRead MoreShort Stories648 Words   |  3 Pageswhat the title to the short story is. The short story theme I am going conduct on is â€Å"The Secret Life of Walter Mitty’ by James Thurber (1973). In this short story the literary elements being used is plot and symbols and the theme being full of distractions and disruption. The narrator is giving a third person point of view in sharing the thoughts of the characters. Walter Mitty the daydreamer is very humorous in the different plots of his dr ifting off. In the start of the story the plot, symbols,Read MoreShort Stories1125 Words   |  5 PagesThe themes of short stories are often relevant to real life? To what extent do you agree with this view? In the short stories â€Å"Miss Brill† and â€Å"Frau Brechenmacher attends a wedding† written by Katherine Mansfield, the themes which are relevant to real life in Miss Brill are isolation and appearance versus reality. Likewise Frau Brechenmacher suffers through isolation throughout the story and also male dominance is one of the major themes that are highlighted in the story. These themes areRead MoreShort Story and People1473 Words   |  6 Pagesï » ¿Title: Story Of An Hour Author: Kate Chopin I. On The Elements / Literary Concepts The short story Story Of An Hour is all about the series of emotions that the protagonist, Mrs. Mallard showed to the readers. With the kind of plot of this short story, it actually refers to the moments that Mrs. Mallard knew that all this time, her husband was alive. For the symbol, I like the title of this short story because it actually symbolizes the time where Mrs. Mallard died with joy. And with thatRead MoreShort Story Essay1294 Words   |  6 PagesA short story concentrates on creating a single dynamic effect and is limited in character and situation. It is a language of maximum yet economical effect. Every word must do a job, sometimes several jobs. Short stories are filled with numerous language and sound devices. These language and sound devices create a stronger image of the scenario or the characters within the text, which contribute to the overall pre-designed effect.As it is shown in the metaphor lipstick bleeding gently in CinnamonRead MoreRacism in the Short Stor ies1837 Words   |  7 PagesOften we read stories that tell stories of mixing the grouping may not always be what is legal or what people consider moral at the time. The things that you can learn from someone who is not like you is amazing if people took the time to consider this before judging someone the world as we know it would be a completely different place. The notion to overlook someone because they are not the same race, gender, creed, religion seems to be the way of the world for a long time. Racism is so prevalentRead MoreThe Idol Short Story1728 Words   |  7 PagesThe short stories â€Å"The Idol† by Adolfo Bioy Casares and â€Å"Axolotl† by Julio Cortà ¡zar address the notion of obsession, and the resulting harm that can come from it. Like all addictions, obsession makes one feel overwhelmed, as a single thought comes to continuously intruding our mind, causing the individual to not be able to ignore these thoughts. In â€Å"Axolotl†, the narr ator is drawn upon the axolotls at the Jardin des Plantes aquarium and his fascination towards the axolotls becomes an obsession. InRead MoreGothic Short Story1447 Words   |  6 Pages The End. In the short story, â€Å"Emma Barrett,† the reader follows a search party group searching for a missing girl named Emma deep in a forest in Oregon. The story follows through first person narration by a group member named Holden. This story would be considered a gothic short story because of its use of setting, theme, symbolism, and literary devices used to portray the horror of a missing six-year-old girl. Plot is the literal chronological development of the story, the sequence of events