Explain The Etiological Models Of Schizophrenia Essay

Explain the etiological models of Schizophrenia. †¢ Genetic o Schizophrenia runs in families - higher rates in 1st degree relatives, especially if both parents schizophrenic, but those who suffer from schizophrenia are unlikely to reproduce o Heritability determined by concordance rates in twins, about 28% in monozygotic twins but only 6% dizygotic twins o Adoption studies confirm likely genetic component and show higher rates of schizophrenia in biological families o These family studies show that although there is a genetic component, other factors influence schizophrenia as well o Chromosomal/gene mapping has not been able to identify a specific gene or chromosome for schizophrenia o May be linked to chromosome 6 †¢ Physiological o Eye movement dysfunction ï‚ § Eye tracking dysfunction frequently seen in schizophrenic patients ï‚ § Poor smooth-pursuit eye tracking most common dysfunction, (instead of smoothly following the track of moving objects, schizophrenics exhibit jerky eye movements) ï‚ § Represents genetic marker of vulnerability to schizophrenia o Inhibition of event related potentials ï‚ § P50 phenomenon related to responses to auditory stimuli seen in many schizophrenics and their blood relatives ï‚ § Inability to inhibit certain responses may be source of various schizophrenic symptoms (distractibility, confusion, hallucinations) ï‚ § High P50 abnormality patients have larger deficits in attention and score more severely on assessment of negative symptoms ï‚ § May be linked toShow MoreRelatedMental Illnesses Explored : Schizophrenia1450 Words   |  6 PagesMental Illnesses Explored: Schizophrenia Schizophrenia has been associated with the dysregulation of many neurotransmitter systems. Large amounts dopamine is the oldest and most widely accepted theory of the pathophysiology of schizophrenia and stems from identification of dopamine D2 receptor blockade as the mechanism of action of antipsychotics. Dopamine D2 binding sites are increased in a person with schizophrenia, which contributes to cognitive impairment. The modern day understanding is suggestedRead MoreNeururopsychiatric Disorders Case Study1356 Words   |  6 Pagesremains elusive. The advancements in in-vivo brain imaging and micro-array studies in the past decades have revealed much about the macroscopic and microscopic physical alterations that are happening in human patients, and has put forward a new etiological candidate: myelin. 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The idea, that theRead MoreOcd - Symptoms, Causes, Treatment131367 Words   |  526 Pagescognitive deficit might account for the persistence of obsessive–compulsive symptoms, and Chapters 5 through 7 discuss current theories and research that are the basis of contemporary CBT for OCD. Chapter 7 presents an expanded cognitive-behavioral model that might provide a more complete account of obsessional phenomena. This new formulation of obsessions emphasizes the importance of faulty secondary appraisals of mental control, as well as the erroneous primary appraisals of the obsession itself

Cyber Threats And The Cyber Threat - 1640 Words

In recent years information security and privacy have come to be topics of high importance with rapid technological advancements. Technology has provided vast areas of opportunities, but these have also brought along unprecedented threats. Since the â€Å"Morris† worm in the 1980’s cyber threat has grown from isolated incidents to high profile attacks on major government and private organizations. Cyber threats can be classified broadly into three distinct areas – ï‚ · Cyber crime – intentional attacks carried out by individuals or groups of individuals with specific objectives of acquiring money, data or causing disruption. ï‚ · Cyber war – an attack conducted by a nation against another nation with the objective to cause disruption or obtain†¦show more content†¦Two popular and large-scale self-propagating worms in 2001 are Code Red and NIMDA. The motivation for the attackers of both these worms were to gain notoriety and fame. Code Red exploited buffer overflow vulnerability in the IIS server of Microsoft. NIMDA on the other hand used multiple propagation techniques such as email, network sharing, exploiting directory traversal vulnerabilities of Microsoft IIS server. These widespread attacks led to the adoption of Intrusion detection systems. 3. Monetary benefit The third phase began around 2004 with the social engineering technique of phishing. The attacks attempted the victims to reveal passwords, identity information and payment card details which would then be used to extract money. 4. Threat and destruction The phase began in 2007/08 with the distributed denial of service attacks launched against Georgia and Estonia. The significant attack in this phase was in 2010 with the Stuxnet, the first malware that was able to compromise industrial control systems. This was significant because it showed that cyber threats were now not limited to servers, software, data and continuity but affected safety as well. Around this same time started the Advanced Persistent Threats. 5. Future Cyber-attacks have become increasingly sophisticated and varied targeting various high profile multinational companies. The target until now has been financial information and other critical

Let Freedom of Expression Ring free essay sample

Descending the staircase in my home, the pictures by the stairs hang in 16† by 20† frames ordered chronologically. Stepping down, one sees a girl then three boys backed by a dark blue color, all wearing Polo shirts and cheesy yet genuine smiles. The last picture hangs like a landscape and a girl with wildly long hair and a flowing off-white dress laughs as she smells a vibrantly colored flower. This home houses many brilliant and successful people. Both my parents and my brother are lawyers. My sister is a molecular biologist, and my other two brothers are well on their ways to success in law and computer coding. I plan to become a music therapist primarily focusing on vocal therapy. Some consider me equal in ability, but most choose to exclude me from the grouping of my familys collective brilliance. It is not that I didn’t receive straight A’s or participate in extracurricular activities to the point of excess in junior high and high school, but there is s omething about the arts causes an outburst of negative stereotypes and assumptions. We will write a custom essay sample on Let Freedom of Expression Ring or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I once ran into my dad’s client at the grocery store. He walked toward me with his perpetually cocky gait only enhanced by his expensive suit, shoes and smile. He half-heartedly asked about my siblings then about my plans for the future. I told him I was going to Barrett, the honors college at ASU for music therapy. He chuckled and replied, â€Å"How does it feel to be the odd one out in a brilliant family?† I smiled at him, suppressing most of my sarcasm and said goodbye because it would have been inappropriate to chastise my father’s colleague. But my anger resonated throughout my being like the striking of a triangle. This is not the only time I have seen people consider the arts to be a poor life choice due to lack of job opportunity or that it takes less brain power to perform the job. During the San Francisco Symphony strike several months ago, a man with no musical ability said he would play the triangle because it is not a difficult job. The music commun ity exploded with rage at this man’s assumption. The triangle player in a symphony is often wrongfully considered to be the easiest and least meaningful position in the entire ensemble. Without all information about the duties of the triangle player, no one could actually know that he or she is insignificant. A lack of ability to do something more significant or useful is one supposed weakness that those choosing an arts career possess however my triangle can be just as effective at creating a mood as the booming sound of the lawyer or the meticulous progression of the scientist. My job is to wait until the correct moment to let the triangle resound in order to evoke emotion from the audience. I want the bright and quiet â€Å"ding† to help people listen, understand, and empathize. They are to enjoy the entire symphony that much more because of the triangle. Humans share a common goal to bring about change in the world through their actions and careers. The lawyer changes opinion, the scientist changes fact, the artist changes emotion. Another classic criticism is the small window of opportunity for jobs and therefore the lack of financial security. Careers in the arts are competitive and it is often a matter of timing. The triangle player must count each bar of silence before striking the metal just so, creating an important effect. There are most certainly jobs available in the arts but one has to seize them. They are not always glamorous and they do not always pay well. The triangle player only strikes his or her instrument a few times per symphonic piece. The goal is to make each hit count. If the few moments of sound ever outweigh the passion for playing, then all attempts at an arts career fail. Being successful is a matter of learning to manage the job’s benefits frugally. Those that argue against arts careers often do so because they think differently so there is no understanding of the artists’ life choices. Hopefully those people chose to follow their passions. Each person has his or her own way of expression. A lawyer may like to express himself through heated discussion and logic. A scientist may like to express herself through knowledge and reason. Each career may not understand the next, but each is equal in goal. Someone with artistic interests may have a different point of view regarding priorities than someone with a â€Å"practical† career. Those that do not understand why this path is so often chosen must temporarily shed all judgment and listen for the shining â€Å"ding† that just may penetrate their argument. Helping the human race in some way while expressing oneself is the most important life goal for me. My means of doing it just happen to be through song and melody. Artists can be problem solvers just as lawyers and scientists are. Music therapy assisted former state representative Gabrielle Giffords in recovery from a gun shot to the head. Music literally rebuilt her brain and she is once again able to speak. Through artistic expression, I plan to help people like Gabby Giffords and many more function independently in society. I will let my triangle reverberate, evoke emotion, and help those around me all the while. If that is not considered success or genius, then I do not know the meaning of the symphony.