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Lec 1 CH1 2 An overview of Abnormal Psychology

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Abnormal Psychology
Seventeenth Edition, Global Edition
Jill M. Hooley | James N. Butcher
Matthew K. Nock | Susan Mineka
Lecture1
Abnormal Psychology:
An Overview
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WHAT IS ABNORMAL
PSYCHOLOGY??
Understanding the nature, causes, and treatment of mental
disorders
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What Do We Mean by Abnormality?
There is no
consensus
definition
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There are some
clear indicators
of abnormality
Indicators of Abnormality
Subjective Distress
Indicators of
abnormality
include:
Maladaptiveness
Statistical Deviancy
Violation of the Standards of Society
Social Discomfort
Irrationality and Unpredictability
Dangerousness
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Indicators of abnormalities
• Subjective distress
– Not a must
– Could be a normal reaction
• Maladaptiveness
– Interferes with our well-being and with our
ability to enjoy our work and our relationships
• Statistical Deviancy
– statistically rare ≠ abnormal/ problematic
– statistically common ≠ normal
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Indicators of abnormalities
•
Violation of the Standards of Society
– a behavior is most likely to be viewed as abnormal when it violates the
standards of society and is statistically deviant or rare.
• Parking violations VS Molesting a Child
•
Social Discomfort
– when someone violates an implicit or unwritten social rule, those around
him or her may experience a sense of discomfort or unease.
•
Irrationality and Unpredictability
– a little unconventionality may add some spice to life, there is a point at
which we are likely to consider a given unorthodox behavior abnormal
– unpredictable, as it would make no sense to you
•
Dangerous
– What about someone who engages in extreme sports or who has a
dangerous hobby (such as free diving, race car driving, or keeping
poison snakes as pet?)
– Most MI patient are not dangerous
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Points to
remember!
Indicators of Abnormality
No one element is sufficient to
define or determine abnormality
Culture plays a role in determining
what is/is not abnormal
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Society is constantly shifting and becoming more or less tolerant of
certain behaviors, what is considered abnormal or deviant in one decade
may not be considered abnormal or deviant a decade or two later.
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The DSM-5
• Diagnostic and Statistical Manual of Mental
Disorders
• Accepted standard for defining various types
of mental disorders In the America
• Developed by the American Psychiatric
Association (APA)
• revised and updated from time to time
– Current version published in 2013
– 947 pages long and contains a total of 541
diagnostic categories
– Research based
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Definition of mental disorder by DSM-5
• a syndrome that is present in an individual and that involves
clinically significant disturbance in behavior, emotion
regulation, or cognitive functioning.
• These disturbances are thought to reflect a dysfunction in
biological, psychological, or developmental processes
that are necessary for mental functioning.
• usually associated with significant distress or disability in
key areas of functioning such as social, occupational, or
other activities.
• Predictable or culturally approved responses to common
stressors or losses (such as death of a loved one) are
excluded.
• dysfunctional pattern of behavior not stem from social
deviance or conflicts that the person has with society as a
whole.
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The DSM-5 Definition of Mental
Disorder
Clinically
significant
Biological,
psychological, or
disturbance in
behavior,
developmental
dysfunction in
emotional
regulation, or
individual
MENTAL cognitive function
DISORDER
Associated with
distress or
disability
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The DSM-5 Definition of Mental
Disorder
ICD-10
Another psychiatric
classification system
Developed by WHO
Has similarities and
differences with DSM-5
Used in U.S. and other
countries
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What Does It Mean to Have a Mental
Disorder?
Click to see video with closed captioning
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Classification and Diagnosis
Classification Systems
- Provide a naming system
and common language
- Allow information structuring
- Facilitate research
- Establish the range of
problems to address
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Classification and Diagnosis
Disadvantages of
Classification
- Loss of individual’s information
(e.g. personal history)
- Stigma and stereotyping
associated with diagnosis
- Self-concept impacted by
diagnostic labeling (e.g. in
remission)
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Problem of Objectivity
“The decision to declare someone
psychologically disordered or abnormal is
always a judgment about behavior.”
•“sane” people in an “insane” place
•“evidence” to justify slavery
– Drapetomania- a mania to seek freedom
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A continuum
Mental illness
Continuum/ Normal variation
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Mental health
How Can We Reduce Prejudicial
Attitudes Toward People Who Are
Mentally Ill?
Negative reactions are
widespread global
phenomena
Understanding of
neurobiological basis does
not lessen stigma
Contact with individuals does
not lessen stigma
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Culture and Abnormality
Cultural factors
influence
• Presentation of
disorders found
worldwide
• Certain forms of highly
culture-specific
psychopathology
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Culture-Specific Disorders
Taijin kyofusho
in Japan
Certain forms of
psychopathology
highly specific to
certain cultures
Examples
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Ataque de
nervios in
Latinos and
Latinas
especially from
the Caribbean
How Common Are Mental Disorders?
Planning, establishing,
and funding mental
health services for
specific disorders
Significant question for
many reasons
Providing clues to
causes of mental
disorders
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Prevalence and Incidence
Epidemiology
• Study of distribution
of diseases,
disorders, or healthrelated behaviors in
a given population
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Prevalence and Incidence
Number of
active cases
in population
during any
given period
of time
Prevalence
Typically expressed
as percentages
Different
types of
prevalence
estimates
(point, 1-year,
lifetime)
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Prevalence and Incidence
Number of
new cases
in population
over given
period of
time
Incidence
Incidence
figures are
typically
lower than
prevalence
figures
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Prevalence Estimates for Mental
Disorders
Lifetime prevalence: 46.4% (DSM Disorders)
Most prevalent category: anxiety disorders, followed by mood
disorders
Most common individual disorders :major depressive disorder,
alcohol abuse, phobias, and conduct disorder
Comorbidity
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How Common is Mental Disorder?
Information from
World Health Organization …..
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Some Facts …. (WHO 2023)
• Mental disorders such as depression are
among the 20 leading causes of disability
worldwide
• 280 million people in the world have depression
• Worldwide, more than 10% of pregnant women
and women who have just given birth
experience depression
• More than 700 000 people die due to suicide
every year.
• Suicide is the fourth leading cause of death in
15–29-year-olds.
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More Facts …
Some Figures (2011) • Major Depressive Disorder – 280 million
(121M in 2011)
• Schizophrenia – 24 million people or 1 in
300 people
• Dementia – 55 million
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Global Burden of Disease study
• The burden of mental illness on health and
productivity
• Mental illness, including suicide, accounts
for over 15 percent of the burden of
disease in established market economies,
such as the United States
• More than the disease burden caused by
all cancers
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Figure 1.2 The Burden of Mental Illness for Different Disorders Across the Lifespan
Disability adjusted life years (DALYs) for various mental and substance use disorders are shown
according to age. DALYs represent the total (worldwide) number of otherwise healthy years of life that
are lost or profoundly impacted because of the disorder. Depression causes the greatest total disability.
This is because depression is a relatively common disorder.
(Adapted from Whiteford et al., 2013. Global burden of disease attributable to mental and substance use
disorders: findings from the Global Burden of Disease Study 2010. Lancet, 382, 1580.)
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In the United States …
• An estimated 26.2% of adults (about 1 in 4)
suffer from a diagnosable mental disorder in a
given year
• Main burden of illness is concentrated in a
much smaller proportion — about 6 percent, or
1 in 17 — who suffer from a serious mental
illness
• Mental disorders are the leading cause of
disability in the U.S. and Canada for ages 1544
(source of information – National Institute of Mental Health)
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3
3
Stigmatization-Mind.org.hk
• 71% survey respondents were unwilling to live with
mental health sufferers, with 1 in 3 even willing to end
friendships with those diagnosed with mental illness.
• 41% consider “lack of self-discipline and willpower” a
main cause of mental illness.
• More than half believe they will be penalized at work for
talking about their mental health challenges.
• 55% have experienced stigma or know someone who
experiences stigma.
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3
4
Shortage of mental health
professionals
•
•
•
•
•
•
The number of public sector psychiatrists per 100,000 people is 4.8 for
Hong Kong, versus 8.59 for high-income countries. With less than 400
psychiatric doctors, Hong Kong has half the number recommended by the
World Health Organisation for our population size.
From 2011/12 to 2015/16, the number of Hospital Authority psychiatric
patients increased by 22%, but psychiatric staff increased only 13%, with
the number of psychiatrists in particular increasing only 3% and psychiatric
hospital bed count remaining unchanged.
Currently, there is a total number of 25,671 registered social workers , 603
clinical psychologists registered under Hong Kong Psychological Society,
and a total of 422 psychiatrists including both public and private sector
registered under the Medical Council of Hong Kong.
Patients’ wait time to see a psychiatrist can be up to almost 2 years, and
each appointment lasts on average only 6-8 minutes.
60% of Hong Kong adults do not know where to seek help regarding mental
health outside of hospitals.
Low-income families are often unable to afford unsubsidised health as the
cost of private sector psychiatric consultations ranges from $790 to $3,000.
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Treatment
Not all people
receive
treatment
Vast majority of
treatment is
done on
outpatient basis
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Inpatient
hospitalization
typically in
psychiatric
units
Mental Health Professionals
Diagnosis
and
assessment
involves
participants
who
• Play differing
roles in the
process
• Gather
comprehensive
evaluation
patient data
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Types of Mental Health
Professionals
How many can you name?
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Mental Hospital Care
in the Twentieth Century
1940: most
mental
hospitals
inhumane
and
ineffective
1946:
National
Institutes
of Mental
Health
1946:
Ward
published
The Snake
Pit
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1963:
Community
Health
Services
Act
1946: Hill–
Burton Act
Mental Hospital Care
in the Twentieth Century
Deinstitutionalization
Movement
Large numbers
of mental
hospital closures
and shift to
communitybased
residences
Global
movement: Asia,
Europe, U.S.
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Considered
more humane
and cost
effective
Created
problems for
both patients
and society as a
whole
From the asylum to prison: rethinking the incarceration revolution
Bernard Harcourt
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257/780
Washington Post 2015
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The Emergence of Contemporary
Views of Abnormal Behavior
Recent changes
• Biological discoveries
• Development of mental disorders
classification system
• Emergence of psychological causation
views
• Experimental psychological research
developments
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Establishing the Link Between
the Brain and Mental Disorder
Biological and
anatomical factors
recognized as
underlying both
physical and mental
disorders
Cure for general
paresis (syphilis of the
brain)
Mental disorders an
illness based on brain
pathology
• Raised hopes that organic
bases would be found for
many other mental
disorders
• Downside: removal of body
parts, lobotomies
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Development of the Psychological
Basis of Mental Disorder
Freud’s
psychoanalytic
perspective
• Comprehensive
theory of
psychopathology
• Emphasis on inner
dynamics of
unconscious motives
(psychodynamics)
• Ancestral roots the
study of hypnosis
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Development of the Psychological
Basis of Mental Disorder
Biological Approaches
• Assume that psychological disturbances are directly attributable to
underlying biological factors
Psychological Approaches
• Focus causal role of psychological or social factors in development of
psychopathology
Psychological Approaches
•
•
•
•
Psychodynamic
Behavioral
Cognitive
Sociocultural
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Psychological Approaches
(i) The psychodynamic model,
– (a) Symptoms are rooted in unconscious conflict (between the id and
superego).
– (b) Defense mechanisms (e.g., repression, denial) are reflexively or
unconsciously employed to avoid pain caused by conflicting motives
and anxieties.
(ii) Behavioral theorists describe abnormal behaviors as being acquired in
the same manner as normal behaviors, through learning (e.g.,
reinforcement).
– (a) Symptoms and maladaptive behavior may be maintained by
current conditions and reinforcers.
– (b) Both classical and operant conditioning models are used to
understand the processes that can result in maladaptive behavior.
(iii) Cognitive perspectives often refine behaviorist views.
– (a) It is important to consider how the individual perceives himself, or
sees one’s relations with others and the environment.
– (b) Problems result from distortions in perceptions of the reality of a
situation.
(iv) The sociocultural perspective emphasizes the role culture plays in both
the etiology and the diagnosis or labeling of abnormal behavior.
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