unit 11: abnormal psychology day 4: personality disorders & scizophrenia essential question –...
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Unit 11: Abnormal PsychologyDay 4: Personality Disorders &
Scizophrenia
• Essential Question– What are the causes and
effects of psychological disorders?
• Objectives (write this down!):– I can: define the etiology
and diagnostic criteria for schizophrenia
– I can distinguish between symptoms of various personality disorders
• DAILY COMMENTARY (in a spiral notebook!):– Have you ever met anyone
with schizophrenia? If so, describe the person’s symptoms and behaviors, and your reaction to them. If not, what do you know about the disorder?
– What is the difference between major depressive disorder and bi-polar disorder?
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Unit 11: Abnormal PsychologyDay 4: Scizophrenia & Personality
Disorders
• Today:– DC– Glogster Overview – Video clips – Notes & research– PsychSym5 – “Losing
touch with reality”– Imagine a party activity
• Turn In: – RJ 11.4 & 11.5
• For Tonight:– Read pages 685-700; &
other relevant sections for your disorder
– do RJ 11.6
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Schizophrenia
If depression is the common cold of psychological disorders, schizophrenia is
the cancer.
Nearly 1 in a 100 suffer from schizophrenia, and throughout the world
over 24 million people suffer from this disease (WHO, 2002).
Schizophrenia strikes young people as they mature into adults. It affects men
and women equally, but men suffer from it more severely than women.
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Symptoms of Schizophrenia
The literal translation is “split mind.” A group of severe disorders characterized by
the following:
1. Paranoia2. Delusions3. Word salad4. Fragmented thinking & speech
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Other forms of delusions include, delusions of persecution (“someone is following me”) or grandeur (“I am a
king”).
Disorganized & Delusional Thinking
This morning when I was at Hillside [Hospital], I was making a movie. I was surrounded by movie stars … I’m Marry Poppins. Is this room painted blue to get me upset? My grandmother died four weeks after my eighteenth birthday.”
(Sheehan, 1982)
This monologue illustrates fragmented, bizarre thinking with distorted beliefs called delusions (“I’m Mary Poppins”).
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Disturbed Perceptions
A schizophrenic person may perceive things that are not there (hallucinations).
Frequently such hallucinations are auditory and lesser visual,
somatosensory, olfactory, or gustatory.L. Berthold, Untitled. The Prinzhorn Collection, U
niversity of Heidelberg
August Natt
er, Witches H
ead. The Prinzhorn Collection, University of H
eidelberg
Photos of paintings by Krannert Museum
, University of Illinois at U
rbana-Champaign
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Inappropriate Emotions & Actions
A schizophrenic person may laugh at the news of someone dying or show no
emotion at all (apathy).
Patients with schizophrenia may continually rub an arm, rock a chair, or remain motionless for hours (catatonia).
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Positive and Negative Symptoms
Schizophrenics have inappropriate symptoms (hallucinations, disorganized
thinking, deluded ways) that are not present in normal individuals (positive
symptoms).
Schizophrenics also have an absence of appropriate symptoms (apathy,
expressionless faces, rigid bodies) that are present in normal individuals
(negative symptoms).
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Chronic and Acute Schizophrenia
When schizophrenia is slow to develop (chronic/process) recovery is doubtful.
Such schizophrenics usually display negative symptoms.
When schizophrenia rapidly develops (acute/reactive) recovery is better. Such
schizophrenics usually show positive symptoms.
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Subtypes
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Understanding Schizophrenia
Schizophrenia is a disease of the brain exhibited by the symptoms of the mind.
Dopamine Overactivity: Researchers found that schizophrenic patients express higher levels of dopamine D4 receptors in
the brain.
Brain Abnormalities
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Abnormal Brain Activity
Brain scans show abnormal activity in the frontal cortex, thalamus, and amygdala of
schizophrenic patients. Adolescent schizophrenic patients also have brain
lesions. Paul Thompson and Arthur W
. Toga, UCLA Laboratory of N
euro Im
aging and Judith L. Rapport, National Institute of M
ental Health
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Abnormal Brain Morphology
Schizophrenia patients may exhibit morphological changes in the brain like
enlargement of fluid-filled ventricles.
Both Photos: Courtesy of Daniel R. W
einberger, M.D., N
IH-N
IMH
/ NSC
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Viral Infection
Schizophrenia has also been observed in individuals who contracted a viral
infection (flu) during the middle of their fetal development.
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Genetic Factors
The likelihood of an individual suffering from schizophrenia is 50% if their
identical twin has the disease (Gottesman, 1991).
0 10 20 30 40 50Identical
Both parents
Fraternal
One parent
Sibling
Nephew or niece
Unrelated
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Genetic Factors
The following shows the prevalence of schizophrenia in identical twins as seen
in different countries.
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Psychological Factors
Psychological and environmental factors can trigger schizophrenia if the individual
is genetically predisposed (Nicols & Gottesman, 1983).
Genain Sisters
The genetically identical Genainsisters suffer from schizophrenia. Two more than others, thus there are contributing environmental
factors.Courtesy of G
enain Family
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Warning Signs
Early warning signs of schizophrenia include:
Birth complications, oxygen deprivation and low-birth weight.
2.
Short attention span and poor muscle coordination.3.
Poor peer relations and solo play.6.
Emotional unpredictability.5.
Disruptive and withdrawn behavior.4.
A mother’s long lasting schizophrenia.1.
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Personality Disorders
Personality disorders are
characterized by inflexible and
enduring behavior patterns that impair social
functioning. They are usually without anxiety, depression,
or delusions.
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Dissociative Identity Disorder
• Lose track of identity and develop at least 2 others
• Currently just 30,000 diagnosed cases worldwide– Often caused by traumatic sexual abuse
– Commercial Film: 3 Faces of Eve (recommended)– “roses are red, violets are blue, I have DID and I do
too”
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Antisocial Personality Disorder
A disorder in which the person (usually men) exhibits a lack of conscience for wrongdoing, even toward friends and
family members. Formerly, this person was called a sociopath or psychopath.
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Understanding Antisocial Personality Disorder
Like mood disorders and schizophrenia,
antisocial personality disorder has
biological and psychological
reasons. Youngsters, before committing a crime, respond with lower levels of stress
hormones than others do at their
age.
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Understanding Antisocial Personality Disorder
PET scans of 41 murderers revealed reduced activity in the frontal lobes. In a follow-up study repeat offenders had 11%
less frontal lobe activity compared to normals (Raine et al., 1999; 2000).
Normal Murderer
Courtesy of Adrian Raine, U
niversity of Southern California
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Understanding Antisocial Personality Disorder
The likelihood that one will commit a crime doubles when childhood poverty is
compounded with obstetrical complications (Raine et al., 1999; 2000).
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Rates of Psychological Disorders
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Rates of Psychological Disorders
The prevalence of psychological disorders during the previous year is shown below
(WHO, 2004).
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Risk and Protective Factors
Risk and protective factors for mental disorders (WHO, 2004).
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Risk and Protective Factors