0.0(0)
Explore Top Notes
HL Biological Approach to Understanding Behavior
noteNote
studied byStudied by 500 people
5.0(1)
Chapter 11: Language and Culture
noteNote
studied byStudied by 11 people
5.0(1)
Development of Western Music in Europe (ca. 450-ca.1450)
noteNote
studied byStudied by 17 people
5.0(1)
Chapter 16 - Kinetics: Rates and Mechanisms of Chemical Reactions
noteNote
studied byStudied by 22 people
5.0(1)
Crisis de pilotos
noteNote
studied byStudied by 11 people
5.0(1)
Imperialism Rise in Nationalism • During the French and Industrial Revolution, nationalism continued to inspire nations to increase their political and economic power. • Nationalism became the ideal force in the political, economic, and cultural life in the world, becoming the first universal ideology-organizing all people into a nation state. Nationalism Defined • The strong belief that the interest of a particular nation-state is of primary importance. o Nation-State – a state where the vast majority shares the same culture and is conscious of it. It is an ideal in which cultural boundaries match up with political ones. • As an ideology, it is based on the idea that the individual’s loyalty and devotion to the nation-state surpass other individual/group interests. • Exalting one nation’s belief above all others and placing primary emphasis on promotion of its culture and interests, excluding the interests of others. Changing the World through a Nationalistic Vision • The French Revolution significantly changed the political world and how countries govern. • The Industrial Revolution significantly changed the economic world. • The Age of Imperialism (1870-1914) dramatically changed the political, economic, and social world. What is Imperialism? • Imperialism- The policy of extending the rule of authority of an empire or nation over foreign countries, or of acquiring and holding colonies and dependencies. Power and influence are done through diplomacy or military force. Reasons for Imperialism • There are 5 main motives for empires to seek to expand their rule over other countries or territories: 1. Exploratory • Imperial nations wanted to explore territory unknown to them. • The main purpose for this exploration of new lands was for resource acquisition, medical or scientific research. o Charles Darwin • Other reasons: o Cartography (map making) o Adventure 2. Ethnocentric • Europeans acted on the concept of ethnocentrism o Ethnocentrism- the belief that one race or nation is superior to others. • Ethnocentrism developed out of Charles Darwin’s “survival of the fittest” theory. Philosophers used the theory to explain why there were superior races and inferior races. o This became known as Social Darwinism. • Most imperial nations believed that their cultural values or beliefs were superior to other nations or groups. • Believed imperial conquest would bring successful culture to inferior people. 3. Religious • Imperial expansion promoted a religious movement of people setting out to convert new members of conquered territories. • With the belief that Christianity was superior, missionaries believed it was their duty to spread Christianity to the world. • Christian missionaries established churches, and in doing so, they spread Western culture values as well. • Typically, missionaries spread the imperial nation's language through education and religious interactions. 4. Political • Patriotism and Nationalism helped spur our imperial growth, thus creating competition against other supremacies. • It was a matter of national pride, respect, and security. • Furthermore, European rivalry spurred nations for imperial conquest. Since land equaled power, the more land a country could acquire the more prestige they could wield across the globe. • Empires wanted strategic territory to ensure access for their navies and armies around the world. • The empire believed they must expand, thus they needed to be defended. 5. Economic • With the Industrial Revolution taking place during the same time, governments and private companies contributed to find ways to maximize profits. • Imperialized countries provided European factories and markets with natural resources (old and new) to manufacture products. • Trading posts were strategically placed around imperialized countries to maximize and increase profits. o Such places as the Suez Canal in Egypt which was controlled by the British provided strategic choke hold over many European powers. o Imperial powers competed over the best potential locations for resources, markets, and trade. History of Imperialism • Ancient Imperialism 600 BCE-500 CE o Roman Empire, Ancient China, Greek Empire, Persian Empire, Babylonian Empire. • Middle Age Imperialism (Age of Colonialism-1400-1800s) o Great Britain, Spain, Portugal, France, Netherlands (Dutch), Russia. • Age of Imperialism 1870-1914 o Great Britain, Spain, Portugal, France, Germany, Belgium, Italy, Japan, United States, Ottoman Empire, Russia. • Current Imperialism...? o U.S. Military intervention (i.e. Middle East) o Russia’s Invasion of Ukraine. Imperialism Colonialism • Refers to political or economic control, either legally or illegally. • Refers to where one nation assumes control over the other. • Creating an empire, expanding into neighboring regions and expanding the dominance far outside its borders. • Where a country conquers and rules over other regions for exploiting resources from the conquered country for the conqueror's benefit. • Foreign government controls/governs a territory without significant settlement. • Foreign government controls/governs the territory from within the land being colonized. • Little to no new settlement established on fresh territory. • Movement to settle to fresh territory. Age of Colonialism WHEN? • Started around the late 1400s and ended around the late 1700s/early 1800s. WHY? • Primary Reason: European countries, wished to find a direct trade route to Asia (China & India) and the East Indies. o Quicker and relatively more effective than land routes over Asia. • Secondary Reason: Empire expansion (land power) WHO? • Countries involved: Great Britain, France, Spain, the Dutch & Portugal. • Individuals’ knowns as Mercantilists believed that maintaining imperialized territory and colonizing the region could serve as a source of wealth, while personal motives by rulers, explorers, and missionaries could therefore promote their own agenda. o This agenda being “Glory, God and Gold”. Mercantilism • Mercantilism was a popular and main economic system for many European nations during the 16th to 18th centuries. • The main goal was to increase a nation’s wealth by promoting government rule of a nation’s economy for the purpose of enhancing state power at the expense of rival national power. • It was the economic counterpart of political absolutism. Why did mercantilists want colonies? • Mercantilists believed that a country must have an excess of exports over imports. • By colonizing territory, it provided the nation with indispensable wealth of precious raw materials. • Therefore, the claimed territory served as a market and supplier of raw materials for the mother country. Which, in time, provided an excess of exports for the nation and thus created wealth. o Development of Trading Companies to support this economic system. Hudson Bay Company – (1670). Controlled primarily North America. o Dutch East Indie Trading Company (1682) o East Indian Trading Company (1600) o Royal African Trade Company (1672) WHERE? • European nations begun to colonize the America, India and the East Indies to create a direct trade route. • Great Britain was the leading power in India, Australia and North America, South Africa. • Spain colonized central and South America. • French held Louisiana, coastal land of Africa and French Guinea. • The Dutch built an empire in the East Indies. • The Portuguese was able to take control of present-day Brazil and the southern tip of South America and Japan. Age of Colonialism • As countries started to imperialize these regions, eventually the concept of colonization took hold: • This is what makes the Age of Colonialism extremely different! End of Colonialism • By 1800, colonialism became less popular • Why? o Revolutions (Spain, France & American) o The Napoleonic Wars o Struggle for nationalism and democracy. o Exhausted all money and energy to supervise their colonies. Waiting to wake again • Imperialism would stay quiet for close to 50 years before Great Britain and France’s economies revitalized. • The outbreak of the Industrial Revolution only encouraged and revitalized European nations to begin their conquest for new territory and resources. Age of Imperialism THE SCRAMBLE FOR AFRICA 1870-1914 Conditions Prior to Imperialism of Africa  European interest in exploiting Africa was minimal.  Their economic interests & profit in Africa primarily came through coastal trade that took place during the 1500-1700s.  The slave trade became the main source of European profit.  Furthermore, disease, political instability, lack of transportation and unpredictable climate all discouraged Europeans from seeking territory. Slave Trade & the Trans-Atlantic Slave Voyages  Forced labor was not uncommon during the 13-17th Centuries. Africans and Europeans had been trading goods and people across the Mediteranea for centuries.  This all changed from 1526 to 1867, as a new system of slavery was introduced that became highly “commercialized, racialized and inherited”  By 1690, the America and West Indies saw approximately 30,000 African people shipped from Africa. A century later, that number grew to 85,000 people per year.  By 1867, approximately 12.5 million people (about twice the population of Arizona) left Africa in a slave ship. What Changed? 1. End of the Slave Trade- Left a need for trade between Europe and Africa. 2. Innovation in technology- The steam engine and iron hulled boats allowed Europe 3. Discovery of new raw materials- Explorers located vast raw materials and resources and this only spurred imperialism with Europe in the wake of the Industrial Revolution. 4. Politics- Unification of Germany and Italy left little room to expand in Europe. Germany and Italy both needed raw materials to “catch up” with Britain and France so they looked to Africa. The Scramble for Africa  The scramble started in 1870.  Although some coastal land had previously been acquired before 1870, the need for territory quickly accelerated as European countries looked t get deeper into Africa.  Within 20 years, nearly all continents were placed under imperialistic rule. Who was Involved?  Great Britain  France  Germany  Italy  Portugal  Belgium  Spain (kind) Violent Affairs  Violence broke out multiple times when European nations looked to claim the same territory.  Germ Chancellor. Otto van Bismarck. Attempted to avert the possibility of violence against the European powers.  In 1884, Bismarck organized a conference in Berlin for the European nations. The Berlin Conference (1884-85)  The conference looked to set ground rules for future annexation of African territory by European Nations.  Annexation is the forcible acquisition and assertion of legal title over one state’s territory by another state, usually following military occupation of the territory.  From a distant perspective, it looked like it would reduce tensions among European nations and avert war.  At the heart of the meeting, these European countries negotiated their claims to African territory, made it official and then mapped their regions.  Furthermore, the leaders agreed to allow free trade among imperialized territory and some homework for negotiating future European claims in Africa was established. Further Path  After the conference, european powers continued to expand their claims in Africa so that by 1900. 90% of the African territory had been claimed. A Turn towards Colonization?  Upon the imperialization of African territory, European nations and little interest in African land unless it produced economic wealth.  Therefore, European governments put little effort and expertise into these imperialized regions.  In most cases, this emat a form of indirect rule. Thus, governing the natin without sufficient settlement and government from within the mother country. Some Exceptions  There were some exemptions through in Africa as colonization was a necessary for some regions i n Africa.  Some regions where diamonds and gold were present. Government looked to protectorate the regions and establish rule and settlement in the regions.  Protectorates: A state controlled and protected by another state for defense against aggression and other law violations. Would  Some examples include South Africa, Botswana, Zimbabwe and Congo. Conclusion  Although it may appear that the Berlin Conference averted war amid the African Scramble, imperialism eventually brought the world into worldwide conflict.  With the continued desire to create an empire by European nations. World War 1 would break out which can be linked to this quest at imperialism.
noteNote
studied byStudied by 11 people
4.5(2)
Last saved 17 days ago

Week 6

Types of Psychotic Disorders

Schizophrenia:

  • Lasts at least six months, with at least one month of two or more of the following: delusions, hallucinations, disorganised speech, grossly disorganised or catatonic behaviour and/or negative symptoms.


Schizotypal (Personality) Disorder:

  • A pattern of pervasive social and interpersonal deficits and cognitive or perceptual distortions and eccentricities of behaviour beginning before early adulthood.


Schizophreniform Disorder:

  • Equivalent to schizophrenia except the disturbance is of lesser duration (one to six months).


Schizoaffective Disorder:

  • The co-occurrence of the symptoms of schizophrenia and a major mood episode, in addition to at least a two-week period of delusions or hallucinations without mood disturbance.

  • Mood symptoms are present for the majority of the total duration of the disorder.


Delusional Disorder:

  • At least one month of delusions.


Brief Psychotic Disorder:

  • A psychotic disturbance lasting more than one day but less than a month with eventual return to premorbid levels of functioning.


Psychotic Disorder due to another medical condition:

  • Prominent hallucinations or delusions that are the direct physiological consequence of another medical condition.


Substance/Medical-Induced Psychotic Disorder:

  • Delusions and/or hallucinations that develop during or soon after substance intoxication or withdrawal, or after exposure to medication.


Other specified schizophrenia spectrum and other psychotic disorder:

  • Symptoms of psychosis that cause clinically significant distress or impaired functioning, but do not meet the full criteria for any other psychotic disorders.

  • Specific reasons for why the criteria for another disorder is not met must be specified by the clinician (e.g., persistent auditory hallucinations in the absence of other psychotic features).


Unspecified schizophrenia spectrum and other psychotic disorder:

  • Symptoms of psychosis that cause clinically significant distress or impaired functioning, but do not meet the full criteria for any other psychotic disorders.

  • The clinician is not required to specify the reasons why the criteria for this diagnosis are not met.


The History of Schizophrenia

Emil Kraepelin:

  • Dementia praecox.

  • Incorporated hebephrenia, catatonia, and paranoia.


Eugen Bleuler:

  • First use of the term “schizophrenia.“


Kurt Schneider:

  • Listed “first rank” symptoms of schizophrenia.

  • First rank symptoms are the prototypical or most important symptoms of schizophrenia.


Symptoms of Schizophrenia

Positive Symptoms:

  • Delusions: beliefs that are rigidly held, despite contradictory evidence or bizarreness.

  • Hallucinations: perception of sensory stimulus in the absence of that stimulus.

  • Passivity Phenomena: individuals believe that their behaviour, thoughts, and urges are being controlled by an external agent.


Negative Symptoms:

  • Affective flattening.

  • Restricted emotional range.

  • Amotivation/abulia/avolition.

  • Apathy.

  • Social withdrawal.

  • Poverty of thought.

  • Poverty of speech.

  • Poor attention.

Disorganisation Symptoms:

  • Formal thought disorder.

  • Loosening of associations.

  • Clang associations/pun associations.

  • Word salad.

  • Circumstantiality.

  • Tangentiality.

  • Neologisms.

  • Derailment/Knight’s move thinking.


Catatonic Symptoms:

  • Ambitendence: alternation between opposite movements.

  • Echopraxia: automatic imitation of another person’s movements even when asked not to.

  • Stereotypies: repeated regular fixed parts of movement (or speech) that are not goal directed (e.g., moving the arm backwards and not outwards repeatedly while saying ‘but not for me’).

  • Negativism: motiveless resistance to instructions and attempts to be moved, or doing the opposite of what is asked.

  • Posturing: adoption of inappropriate or bizarre bodily posture continuously for a substantial period of time.

  • Waxy flexibility: the patient’s limbs can be ‘molded’ into a position and remain fixed for long periods of time.


Types of Hallucinations

Auditory Hallucinations:

  • Perception of a sound without external stimulus.

  • Content of hallucinations may include voices, music, or sounds.

  • Voices can be heard in second person (“you are…”) or third person (“she is…”) and often comment on the individual, argue about the individual, or repeat the individual’s thoughts.

  • Most common form of hallucination reported in schizophrenia, occurring in 60-70% of cases.


Visual:

  • Seeing things which are not present.

  • Do not reconcile with the physical reality.

  • Content of hallucinations may include shapes, colours, flashes of light, and other people.

  • Much less common in schizophrenia, occurring in only 10% of cases.

  • Generally thought to suggest the presence of an organic disorder, or intoxication.


Olfactory:

  • Smelling odours that are not present.

  • Most common olfactory hallucinations are usually unpleasant smells including rotting flesh, vomit, urine, faeces, and smoke.


Tactile:

  • The illusion of tactile sensory input, stimulating the skin or other organs.

  • Formication: formica = ant, the sensation of bugs crawling along the skin.

  • Often associated with drug and/or alcohol withdrawal.


Gustatory:

  • Perception of taste without a stimulus.

  • Fairly prevalent in individuals with epilepsy.

  • Often associated with psychoactive substances.

  • Usually, the taste is unpleasant including metallic, bitter, rusty, and salty.


Hypnagogic and Hypnopompic

  • Hypnagogic: brief hallucinations that take place as you're falling asleep.

  • Hypnopompic: occur as you're waking up from sleep.


Types of Delusions

Paranoid Delusion:

  • A false belief that one is being persecuted, harmed, or conspired against by others.

  • Individuals experiencing paranoid delusions may interpret benign actions as threatening and may feel an intense sense of mistrust towards others.


Persecutory Delusion:

  • Persecutory delusions occur when paranoia becomes extreme.

  • A person’s paranoid feelings become fixed beliefs, even when they’re presented with opposing evidence.


Delusion of Reference:

  • An individual believes that common elements of the environment, such as conversations, events, or media, are directly related to them or have special significance.


Grandiose Delusion:

  • A false belief characterised by an individual's conviction that they possess exceptional abilities, wealth, or fame.

  • This condition is marked by inflated self-esteem and a sense of self-importance, often leading individuals to believe they have special powers or talents.


Delusion of Influence:

  • A belief that one's thoughts, feelings, or actions are being controlled or influenced by external forces.

  • Feeling manipulated by others or external entities

  • They include delusions of control, i.e., the (false) belief of external influence on thoughts, feelings, impulses, or behaviours, as also manipulations of thoughts, such as thought insertion, withdrawal, and broadcasting.


Nihilistic Delusion:

  • An individual believes that they, others, or the world do not exist or have no meaning or value.

  • This delusion can manifest as feelings of emptiness, despair, or the belief that life is pointless.


Bizarre Delusions:

  • False beliefs that are implausible and not grounded in reality.

  • They often involve scenarios that are highly unlikely or impossible, such as believing that one has been abducted by aliens or that one's thoughts are being controlled by external forces.


Capgras’ Syndrome:

  • A psychological condition where a person believes that someone they know has been replaced by an identical impostor.

  • This delusion often affects close relatives or friends.

  • The syndrome is named after Joseph Capgras, a French psychiatrist who first described it in 1923.


Delusions of Infidelity:

  • Also known as the "Othello syndrome," involve a false belief that a partner is being unfaithful.

  • Individuals experiencing this delusion may interpret benign behaviours as evidence of infidelity, leading to jealousy and mistrust.


Delusions of Thought Possession

Thought Insertion:

  • An individual believes that thoughts that are not their own are being placed into their mind by an external force.


Thought Withdrawal:

  • The belief that one's thoughts are being taken away or removed by an external force, leading to a sense of loss of control over one's own mind.


Though Broadcasting:

  • The belief that one's thoughts are being transmitted to others and can be heard or perceived by them.


Thought Blocking:

  • A phenomenon where an individual suddenly stops speaking or loses their train of thought.


Relationship of Positive Symptoms

  • Delusions are often congruent with the hallucinations the patient is experiencing.

  • The paranoid delusion that others are trying to poison them, along with an olfactory hallucination of poisonous gas.

  • The religious/grandiose delusion that one has been appointed by God, accompanied by auditory command hallucinations.


Diagnosis of Schizophrenia

  • A. Characteristic symptoms: Two (or more) of the following, each present for a significant portion of time during a 1-month period 9or less if successfully treated):

    1. Delusions.

    2. Hallucinations.

    3. Disorganised speech (e.g., frequent derailment or incoherence).

    4. Grossly disorganised or catatonic behaviour.

    5. Negative symptoms (i.e., affective flattening, alogia, or avolition).

  • Note: only one Criterion A symptom is required if delusions are bizarre or hallucinations consist of a voice keeping a running commentary on the other person’s behaviour or thoughts, or two or more voices conversing with each other.

  • B. Social/occupational dysfunction: for a significant portion of the time since the onset of the disturbance, one or more major areas of functioning such as work, interpersonal relations, or self-care are markedly below the level achieved prior to the onset (or when the onset is in childhood or adolescence, failure to achieve expected level of interpersonal, academic, or occupational achievement).

  • C. Duration: continuous signs of the disturbance persist for at least 6 months. This 6-month period must include at least 1 month of symptoms (or less if successfully treated) that meet Criterion A (i.e., active-phase symptoms) and may include periods of prodromal or residual symptoms. During these prodromal or residual periods, the signs of the disturbance may be manifested by only negative symptoms or two or more symptoms listed in Criterion A present in an attenuated form (e.g., odd beliefs, unusual perceptual experiences).



Subtypes of Schizophrenia

Paranoid:

  • Preoccupation with delusions and hallucinations.

  • Later onset, and better prognosis.


Disorganised:

  • Disorganised speech, behaviour and inappropriate or flat affect.


Catatonic:

  • Motor and volition disturbance.


Undifferentiated:

  • The individual exhibits the characteristic symptoms of schizophrenia but the overall picture is not one of catatonic type, paranoid type, or disorganised type schizophrenia.


Residual:

  • An individual has suffered an episode of schizophrenia but there are no longer any delusions, hallucinations, disorganised speech or behaviour.


Prevalence of Schizophrenia

  • Point-prevalence of 0.5% to 1.5%.

  • Prevalence varies by birth month, gender, distance from the equator, and socioeconomic status.


Age of Onset


Risk: Birth Month


Risk: Geographic Differences


Course of Schizophrenia

  • Median onset is approximately the mid-20s for males and late-20s for females.

  • Onset may be abrupt or insidious.

  • Prodromal symptoms are common including social withdrawal, apathy, unusual beliefs, and oddness.

  • Later onset is associated with better prognosis.


Etiology of Schizophrenia

Genetics and Schizophrenia:


Dopamine Pathways:

  • Mesolimbic dopamine pathway from the midbrain ventral tegmental area to the nucleus accumbens (limbic system).

  • Includes experiences of pleasure, euphoria, delusions, and hallucinations.

  • Mesocortical dopamine pathways from the midbrain ventral tegmental area to the limbic cortex.

  • includes experiences of negative and cognitive symptoms of schizophrenia.

  • Through the pre-frontal cortex includes motivation and emotional response.


0.0(0)
Explore Top Notes
HL Biological Approach to Understanding Behavior
noteNote
studied byStudied by 500 people
5.0(1)
Chapter 11: Language and Culture
noteNote
studied byStudied by 11 people
5.0(1)
Development of Western Music in Europe (ca. 450-ca.1450)
noteNote
studied byStudied by 17 people
5.0(1)
Chapter 16 - Kinetics: Rates and Mechanisms of Chemical Reactions
noteNote
studied byStudied by 22 people
5.0(1)
Crisis de pilotos
noteNote
studied byStudied by 11 people
5.0(1)
Imperialism Rise in Nationalism • During the French and Industrial Revolution, nationalism continued to inspire nations to increase their political and economic power. • Nationalism became the ideal force in the political, economic, and cultural life in the world, becoming the first universal ideology-organizing all people into a nation state. Nationalism Defined • The strong belief that the interest of a particular nation-state is of primary importance. o Nation-State – a state where the vast majority shares the same culture and is conscious of it. It is an ideal in which cultural boundaries match up with political ones. • As an ideology, it is based on the idea that the individual’s loyalty and devotion to the nation-state surpass other individual/group interests. • Exalting one nation’s belief above all others and placing primary emphasis on promotion of its culture and interests, excluding the interests of others. Changing the World through a Nationalistic Vision • The French Revolution significantly changed the political world and how countries govern. • The Industrial Revolution significantly changed the economic world. • The Age of Imperialism (1870-1914) dramatically changed the political, economic, and social world. What is Imperialism? • Imperialism- The policy of extending the rule of authority of an empire or nation over foreign countries, or of acquiring and holding colonies and dependencies. Power and influence are done through diplomacy or military force. Reasons for Imperialism • There are 5 main motives for empires to seek to expand their rule over other countries or territories: 1. Exploratory • Imperial nations wanted to explore territory unknown to them. • The main purpose for this exploration of new lands was for resource acquisition, medical or scientific research. o Charles Darwin • Other reasons: o Cartography (map making) o Adventure 2. Ethnocentric • Europeans acted on the concept of ethnocentrism o Ethnocentrism- the belief that one race or nation is superior to others. • Ethnocentrism developed out of Charles Darwin’s “survival of the fittest” theory. Philosophers used the theory to explain why there were superior races and inferior races. o This became known as Social Darwinism. • Most imperial nations believed that their cultural values or beliefs were superior to other nations or groups. • Believed imperial conquest would bring successful culture to inferior people. 3. Religious • Imperial expansion promoted a religious movement of people setting out to convert new members of conquered territories. • With the belief that Christianity was superior, missionaries believed it was their duty to spread Christianity to the world. • Christian missionaries established churches, and in doing so, they spread Western culture values as well. • Typically, missionaries spread the imperial nation's language through education and religious interactions. 4. Political • Patriotism and Nationalism helped spur our imperial growth, thus creating competition against other supremacies. • It was a matter of national pride, respect, and security. • Furthermore, European rivalry spurred nations for imperial conquest. Since land equaled power, the more land a country could acquire the more prestige they could wield across the globe. • Empires wanted strategic territory to ensure access for their navies and armies around the world. • The empire believed they must expand, thus they needed to be defended. 5. Economic • With the Industrial Revolution taking place during the same time, governments and private companies contributed to find ways to maximize profits. • Imperialized countries provided European factories and markets with natural resources (old and new) to manufacture products. • Trading posts were strategically placed around imperialized countries to maximize and increase profits. o Such places as the Suez Canal in Egypt which was controlled by the British provided strategic choke hold over many European powers. o Imperial powers competed over the best potential locations for resources, markets, and trade. History of Imperialism • Ancient Imperialism 600 BCE-500 CE o Roman Empire, Ancient China, Greek Empire, Persian Empire, Babylonian Empire. • Middle Age Imperialism (Age of Colonialism-1400-1800s) o Great Britain, Spain, Portugal, France, Netherlands (Dutch), Russia. • Age of Imperialism 1870-1914 o Great Britain, Spain, Portugal, France, Germany, Belgium, Italy, Japan, United States, Ottoman Empire, Russia. • Current Imperialism...? o U.S. Military intervention (i.e. Middle East) o Russia’s Invasion of Ukraine. Imperialism Colonialism • Refers to political or economic control, either legally or illegally. • Refers to where one nation assumes control over the other. • Creating an empire, expanding into neighboring regions and expanding the dominance far outside its borders. • Where a country conquers and rules over other regions for exploiting resources from the conquered country for the conqueror's benefit. • Foreign government controls/governs a territory without significant settlement. • Foreign government controls/governs the territory from within the land being colonized. • Little to no new settlement established on fresh territory. • Movement to settle to fresh territory. Age of Colonialism WHEN? • Started around the late 1400s and ended around the late 1700s/early 1800s. WHY? • Primary Reason: European countries, wished to find a direct trade route to Asia (China & India) and the East Indies. o Quicker and relatively more effective than land routes over Asia. • Secondary Reason: Empire expansion (land power) WHO? • Countries involved: Great Britain, France, Spain, the Dutch & Portugal. • Individuals’ knowns as Mercantilists believed that maintaining imperialized territory and colonizing the region could serve as a source of wealth, while personal motives by rulers, explorers, and missionaries could therefore promote their own agenda. o This agenda being “Glory, God and Gold”. Mercantilism • Mercantilism was a popular and main economic system for many European nations during the 16th to 18th centuries. • The main goal was to increase a nation’s wealth by promoting government rule of a nation’s economy for the purpose of enhancing state power at the expense of rival national power. • It was the economic counterpart of political absolutism. Why did mercantilists want colonies? • Mercantilists believed that a country must have an excess of exports over imports. • By colonizing territory, it provided the nation with indispensable wealth of precious raw materials. • Therefore, the claimed territory served as a market and supplier of raw materials for the mother country. Which, in time, provided an excess of exports for the nation and thus created wealth. o Development of Trading Companies to support this economic system. Hudson Bay Company – (1670). Controlled primarily North America. o Dutch East Indie Trading Company (1682) o East Indian Trading Company (1600) o Royal African Trade Company (1672) WHERE? • European nations begun to colonize the America, India and the East Indies to create a direct trade route. • Great Britain was the leading power in India, Australia and North America, South Africa. • Spain colonized central and South America. • French held Louisiana, coastal land of Africa and French Guinea. • The Dutch built an empire in the East Indies. • The Portuguese was able to take control of present-day Brazil and the southern tip of South America and Japan. Age of Colonialism • As countries started to imperialize these regions, eventually the concept of colonization took hold: • This is what makes the Age of Colonialism extremely different! End of Colonialism • By 1800, colonialism became less popular • Why? o Revolutions (Spain, France & American) o The Napoleonic Wars o Struggle for nationalism and democracy. o Exhausted all money and energy to supervise their colonies. Waiting to wake again • Imperialism would stay quiet for close to 50 years before Great Britain and France’s economies revitalized. • The outbreak of the Industrial Revolution only encouraged and revitalized European nations to begin their conquest for new territory and resources. Age of Imperialism THE SCRAMBLE FOR AFRICA 1870-1914 Conditions Prior to Imperialism of Africa  European interest in exploiting Africa was minimal.  Their economic interests & profit in Africa primarily came through coastal trade that took place during the 1500-1700s.  The slave trade became the main source of European profit.  Furthermore, disease, political instability, lack of transportation and unpredictable climate all discouraged Europeans from seeking territory. Slave Trade & the Trans-Atlantic Slave Voyages  Forced labor was not uncommon during the 13-17th Centuries. Africans and Europeans had been trading goods and people across the Mediteranea for centuries.  This all changed from 1526 to 1867, as a new system of slavery was introduced that became highly “commercialized, racialized and inherited”  By 1690, the America and West Indies saw approximately 30,000 African people shipped from Africa. A century later, that number grew to 85,000 people per year.  By 1867, approximately 12.5 million people (about twice the population of Arizona) left Africa in a slave ship. What Changed? 1. End of the Slave Trade- Left a need for trade between Europe and Africa. 2. Innovation in technology- The steam engine and iron hulled boats allowed Europe 3. Discovery of new raw materials- Explorers located vast raw materials and resources and this only spurred imperialism with Europe in the wake of the Industrial Revolution. 4. Politics- Unification of Germany and Italy left little room to expand in Europe. Germany and Italy both needed raw materials to “catch up” with Britain and France so they looked to Africa. The Scramble for Africa  The scramble started in 1870.  Although some coastal land had previously been acquired before 1870, the need for territory quickly accelerated as European countries looked t get deeper into Africa.  Within 20 years, nearly all continents were placed under imperialistic rule. Who was Involved?  Great Britain  France  Germany  Italy  Portugal  Belgium  Spain (kind) Violent Affairs  Violence broke out multiple times when European nations looked to claim the same territory.  Germ Chancellor. Otto van Bismarck. Attempted to avert the possibility of violence against the European powers.  In 1884, Bismarck organized a conference in Berlin for the European nations. The Berlin Conference (1884-85)  The conference looked to set ground rules for future annexation of African territory by European Nations.  Annexation is the forcible acquisition and assertion of legal title over one state’s territory by another state, usually following military occupation of the territory.  From a distant perspective, it looked like it would reduce tensions among European nations and avert war.  At the heart of the meeting, these European countries negotiated their claims to African territory, made it official and then mapped their regions.  Furthermore, the leaders agreed to allow free trade among imperialized territory and some homework for negotiating future European claims in Africa was established. Further Path  After the conference, european powers continued to expand their claims in Africa so that by 1900. 90% of the African territory had been claimed. A Turn towards Colonization?  Upon the imperialization of African territory, European nations and little interest in African land unless it produced economic wealth.  Therefore, European governments put little effort and expertise into these imperialized regions.  In most cases, this emat a form of indirect rule. Thus, governing the natin without sufficient settlement and government from within the mother country. Some Exceptions  There were some exemptions through in Africa as colonization was a necessary for some regions i n Africa.  Some regions where diamonds and gold were present. Government looked to protectorate the regions and establish rule and settlement in the regions.  Protectorates: A state controlled and protected by another state for defense against aggression and other law violations. Would  Some examples include South Africa, Botswana, Zimbabwe and Congo. Conclusion  Although it may appear that the Berlin Conference averted war amid the African Scramble, imperialism eventually brought the world into worldwide conflict.  With the continued desire to create an empire by European nations. World War 1 would break out which can be linked to this quest at imperialism.
noteNote
studied byStudied by 11 people
4.5(2)
robot
knowt logo

Week 6

Types of Psychotic Disorders

Schizophrenia:

  • Lasts at least six months, with at least one month of two or more of the following: delusions, hallucinations, disorganised speech, grossly disorganised or catatonic behaviour and/or negative symptoms.

Schizotypal (Personality) Disorder:

  • A pattern of pervasive social and interpersonal deficits and cognitive or perceptual distortions and eccentricities of behaviour beginning before early adulthood.

Schizophreniform Disorder:

  • Equivalent to schizophrenia except the disturbance is of lesser duration (one to six months).

Schizoaffective Disorder:

  • The co-occurrence of the symptoms of schizophrenia and a major mood episode, in addition to at least a two-week period of delusions or hallucinations without mood disturbance.

  • Mood symptoms are present for the majority of the total duration of the disorder.

Delusional Disorder:

  • At least one month of delusions.

Brief Psychotic Disorder:

  • A psychotic disturbance lasting more than one day but less than a month with eventual return to premorbid levels of functioning.

Psychotic Disorder due to another medical condition:

  • Prominent hallucinations or delusions that are the direct physiological consequence of another medical condition.

Substance/Medical-Induced Psychotic Disorder:

  • Delusions and/or hallucinations that develop during or soon after substance intoxication or withdrawal, or after exposure to medication.

Other specified schizophrenia spectrum and other psychotic disorder:

  • Symptoms of psychosis that cause clinically significant distress or impaired functioning, but do not meet the full criteria for any other psychotic disorders.

  • Specific reasons for why the criteria for another disorder is not met must be specified by the clinician (e.g., persistent auditory hallucinations in the absence of other psychotic features).

Unspecified schizophrenia spectrum and other psychotic disorder:

  • Symptoms of psychosis that cause clinically significant distress or impaired functioning, but do not meet the full criteria for any other psychotic disorders.

  • The clinician is not required to specify the reasons why the criteria for this diagnosis are not met.

The History of Schizophrenia

Emil Kraepelin:

  • Dementia praecox.

  • Incorporated hebephrenia, catatonia, and paranoia.

Eugen Bleuler:

  • First use of the term “schizophrenia.“

Kurt Schneider:

  • Listed “first rank” symptoms of schizophrenia.

  • First rank symptoms are the prototypical or most important symptoms of schizophrenia.

Symptoms of Schizophrenia

Positive Symptoms:

  • Delusions: beliefs that are rigidly held, despite contradictory evidence or bizarreness.

  • Hallucinations: perception of sensory stimulus in the absence of that stimulus.

  • Passivity Phenomena: individuals believe that their behaviour, thoughts, and urges are being controlled by an external agent.

Negative Symptoms:

  • Affective flattening.

  • Restricted emotional range.

  • Amotivation/abulia/avolition.

  • Apathy.

  • Social withdrawal.

  • Poverty of thought.

  • Poverty of speech.

  • Poor attention.

Disorganisation Symptoms:

  • Formal thought disorder.

  • Loosening of associations.

  • Clang associations/pun associations.

  • Word salad.

  • Circumstantiality.

  • Tangentiality.

  • Neologisms.

  • Derailment/Knight’s move thinking.

Catatonic Symptoms:

  • Ambitendence: alternation between opposite movements.

  • Echopraxia: automatic imitation of another person’s movements even when asked not to.

  • Stereotypies: repeated regular fixed parts of movement (or speech) that are not goal directed (e.g., moving the arm backwards and not outwards repeatedly while saying ‘but not for me’).

  • Negativism: motiveless resistance to instructions and attempts to be moved, or doing the opposite of what is asked.

  • Posturing: adoption of inappropriate or bizarre bodily posture continuously for a substantial period of time.

  • Waxy flexibility: the patient’s limbs can be ‘molded’ into a position and remain fixed for long periods of time.

Types of Hallucinations

Auditory Hallucinations:

  • Perception of a sound without external stimulus.

  • Content of hallucinations may include voices, music, or sounds.

  • Voices can be heard in second person (“you are…”) or third person (“she is…”) and often comment on the individual, argue about the individual, or repeat the individual’s thoughts.

  • Most common form of hallucination reported in schizophrenia, occurring in 60-70% of cases.

Visual:

  • Seeing things which are not present.

  • Do not reconcile with the physical reality.

  • Content of hallucinations may include shapes, colours, flashes of light, and other people.

  • Much less common in schizophrenia, occurring in only 10% of cases.

  • Generally thought to suggest the presence of an organic disorder, or intoxication.

Olfactory:

  • Smelling odours that are not present.

  • Most common olfactory hallucinations are usually unpleasant smells including rotting flesh, vomit, urine, faeces, and smoke.

Tactile:

  • The illusion of tactile sensory input, stimulating the skin or other organs.

  • Formication: formica = ant, the sensation of bugs crawling along the skin.

  • Often associated with drug and/or alcohol withdrawal.

Gustatory:

  • Perception of taste without a stimulus.

  • Fairly prevalent in individuals with epilepsy.

  • Often associated with psychoactive substances.

  • Usually, the taste is unpleasant including metallic, bitter, rusty, and salty.

Hypnagogic and Hypnopompic

  • Hypnagogic: brief hallucinations that take place as you're falling asleep.

  • Hypnopompic: occur as you're waking up from sleep.

Types of Delusions

Paranoid Delusion:

  • A false belief that one is being persecuted, harmed, or conspired against by others.

  • Individuals experiencing paranoid delusions may interpret benign actions as threatening and may feel an intense sense of mistrust towards others.

Persecutory Delusion:

  • Persecutory delusions occur when paranoia becomes extreme.

  • A person’s paranoid feelings become fixed beliefs, even when they’re presented with opposing evidence.

Delusion of Reference:

  • An individual believes that common elements of the environment, such as conversations, events, or media, are directly related to them or have special significance.

Grandiose Delusion:

  • A false belief characterised by an individual's conviction that they possess exceptional abilities, wealth, or fame.

  • This condition is marked by inflated self-esteem and a sense of self-importance, often leading individuals to believe they have special powers or talents.

Delusion of Influence:

  • A belief that one's thoughts, feelings, or actions are being controlled or influenced by external forces.

  • Feeling manipulated by others or external entities

  • They include delusions of control, i.e., the (false) belief of external influence on thoughts, feelings, impulses, or behaviours, as also manipulations of thoughts, such as thought insertion, withdrawal, and broadcasting.

Nihilistic Delusion:

  • An individual believes that they, others, or the world do not exist or have no meaning or value.

  • This delusion can manifest as feelings of emptiness, despair, or the belief that life is pointless.

Bizarre Delusions:

  • False beliefs that are implausible and not grounded in reality.

  • They often involve scenarios that are highly unlikely or impossible, such as believing that one has been abducted by aliens or that one's thoughts are being controlled by external forces.

Capgras’ Syndrome:

  • A psychological condition where a person believes that someone they know has been replaced by an identical impostor.

  • This delusion often affects close relatives or friends.

  • The syndrome is named after Joseph Capgras, a French psychiatrist who first described it in 1923.

Delusions of Infidelity:

  • Also known as the "Othello syndrome," involve a false belief that a partner is being unfaithful.

  • Individuals experiencing this delusion may interpret benign behaviours as evidence of infidelity, leading to jealousy and mistrust.

Delusions of Thought Possession

Thought Insertion:

  • An individual believes that thoughts that are not their own are being placed into their mind by an external force.

Thought Withdrawal:

  • The belief that one's thoughts are being taken away or removed by an external force, leading to a sense of loss of control over one's own mind.

Though Broadcasting:

  • The belief that one's thoughts are being transmitted to others and can be heard or perceived by them.

Thought Blocking:

  • A phenomenon where an individual suddenly stops speaking or loses their train of thought.

Relationship of Positive Symptoms

  • Delusions are often congruent with the hallucinations the patient is experiencing.

  • The paranoid delusion that others are trying to poison them, along with an olfactory hallucination of poisonous gas.

  • The religious/grandiose delusion that one has been appointed by God, accompanied by auditory command hallucinations.

Diagnosis of Schizophrenia

  • A. Characteristic symptoms: Two (or more) of the following, each present for a significant portion of time during a 1-month period 9or less if successfully treated):

    1. Delusions.

    2. Hallucinations.

    3. Disorganised speech (e.g., frequent derailment or incoherence).

    4. Grossly disorganised or catatonic behaviour.

    5. Negative symptoms (i.e., affective flattening, alogia, or avolition).

  • Note: only one Criterion A symptom is required if delusions are bizarre or hallucinations consist of a voice keeping a running commentary on the other person’s behaviour or thoughts, or two or more voices conversing with each other.

  • B. Social/occupational dysfunction: for a significant portion of the time since the onset of the disturbance, one or more major areas of functioning such as work, interpersonal relations, or self-care are markedly below the level achieved prior to the onset (or when the onset is in childhood or adolescence, failure to achieve expected level of interpersonal, academic, or occupational achievement).

  • C. Duration: continuous signs of the disturbance persist for at least 6 months. This 6-month period must include at least 1 month of symptoms (or less if successfully treated) that meet Criterion A (i.e., active-phase symptoms) and may include periods of prodromal or residual symptoms. During these prodromal or residual periods, the signs of the disturbance may be manifested by only negative symptoms or two or more symptoms listed in Criterion A present in an attenuated form (e.g., odd beliefs, unusual perceptual experiences).

Subtypes of Schizophrenia

Paranoid:

  • Preoccupation with delusions and hallucinations.

  • Later onset, and better prognosis.

Disorganised:

  • Disorganised speech, behaviour and inappropriate or flat affect.

Catatonic:

  • Motor and volition disturbance.

Undifferentiated:

  • The individual exhibits the characteristic symptoms of schizophrenia but the overall picture is not one of catatonic type, paranoid type, or disorganised type schizophrenia.

Residual:

  • An individual has suffered an episode of schizophrenia but there are no longer any delusions, hallucinations, disorganised speech or behaviour.

Prevalence of Schizophrenia

  • Point-prevalence of 0.5% to 1.5%.

  • Prevalence varies by birth month, gender, distance from the equator, and socioeconomic status.

Age of Onset

Risk: Birth Month

Risk: Geographic Differences

Course of Schizophrenia

  • Median onset is approximately the mid-20s for males and late-20s for females.

  • Onset may be abrupt or insidious.

  • Prodromal symptoms are common including social withdrawal, apathy, unusual beliefs, and oddness.

  • Later onset is associated with better prognosis.

Etiology of Schizophrenia

Genetics and Schizophrenia:

Dopamine Pathways:

  • Mesolimbic dopamine pathway from the midbrain ventral tegmental area to the nucleus accumbens (limbic system).

  • Includes experiences of pleasure, euphoria, delusions, and hallucinations.

  • Mesocortical dopamine pathways from the midbrain ventral tegmental area to the limbic cortex.

  • includes experiences of negative and cognitive symptoms of schizophrenia.

  • Through the pre-frontal cortex includes motivation and emotional response.