1 Psychological Disorders According to the Law The definition of mental disorders rests on whether:...
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Transcript of 1 Psychological Disorders According to the Law The definition of mental disorders rests on whether:...
1
Psychological Disorders
According to the Law
The definition of mental disorders rests on whether:
1- the person is aware of of the consequences of his actions
2- can control his behavior
If not the person may be declared insane.
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Definitions of Mental DisorderA Harmful Dysfunction
1- Mental disorders as a violation of cultural standards or atypical
2- Mental disorder as maladaptive or harmful behavior
3- Mental disorder as a disturbing emotional distress.
4- Mental disorder as unjustifiable
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Psychologists’ Definition
• Any behavior or emotional state that
1- causes the individual great suffering or worry
2- is self-destructive,
3- is maladaptive and disrupts either the person’s relationships or the larger community.
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Understanding Psychological Disorders
The Medical Perspective
Psychological disorders are sicknesses and can be diagnosed, treated, and even cured.
The Bio-Psycho-Social Perspective
How biological, psychological, and social factors interact to produce specific psychological disorders.
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Diagnostic & Statistical Manual of Mental Disorders
• DSM-IV (1994) contains more than 300 mental disorders.
• Provides diagnostic categories
• Does not provide information on causes
• Does not provide information on treatment
• It is organized in 5 axes
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Axis IClinical Syndromes
Anxiety disorders
Mood disorders
Dissociative disorders
Substance abuse disorders
Schizophrenia
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Axis IIDevelopmental and Personality Disorders
Ingrained aspects of the client’s personality that are likely to affect the person’s ability to be treated, such as self-involvement or dependency.
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Axis IIIPhysical Disorders and Conditions
• Medical conditions that are relevant to the disorder, such as respiratory or digestive problems.
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Axis IVSeverity of Psychosocial Stressors
• Social and environmental stressors that can make the disorder worse, such as job and housing troubles or having recently left a network of close friends.
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Axis VGlobal Assessment of Functioning
• The client’s overall level of functioning at work, relationships, and leisure time including whether the problem was of a recent origin or of long duration, and how incapacitating it is.
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Diagnostic Criteria for Attention-Deficit Hyperactivity Disorder
• Symptoms must persist for at least six months
• Symptoms must have begun before age seven
• Symptoms present in at least two situations• Disorder impairs functioning• Symptoms not explained by another
disorder such as:
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Diagnostic Criteria for Attention-Deficit Hyperactivity Disorder
• Anxiety
• Schizophrenia
• Mania
• Dissociative Disorder
• Personality Disorder
• Developmental Disorder
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Anxiety Disorders
• 1- Generalized Anxiety Disorder
• 2- Posttraumatic Stress Disorder
• 3- Panic Disorder
• 4- Fears and Phobias
• 5- Obsession Compulsions
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Posttraumatic Stress Disorder
• When people are in danger, they produce high levels of natural opiates, which can temporarily mask pain. They also produce stress hormones.
• People with PTSD tend to continue producing these hormones.
• Norepinephrine is higher than normal. It activates the hippocampus, which is involved with memory and long term memory.
• At high levels, stress hormones can become toxic and can damage the brain.
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Phobias
• Acrophobia: fear of heights• Brontophobia: fear of thunder• Claustrophobia: fear of closed places• Porphyrophobia: fear of the color purple• Mysophobia: fear of dirt and germs• Agoraphobia: fear of being away from a safe
place. • Triskaidekaphobia: fear of number 13
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Obsession Compulsions
• ObsessionsRecurrent, persistent, unwished-for thoughts or
images.Example: repetitive thoughts about killing a child or
becoming contaminated by shaking hands. • CompulsionsRepetitive, ritualized behavior that the person feels
must be carried out to avoid disaster.Example: hand washing, counting, & checking
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Obsession Compulsions
• The orbital cortex sends messages of impending danger to the caudate nucleus (prepares the body to respond to external danger).
• In people with OCD, the orbital cortex keeps on sending false alarms of danger.
• But the caudate nucleus fails to turn them off.
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Explaining Anxiety Disorders
The Learning Perspective
Fear Conditioning
Stimulus Generalization
Reinforcement
Observational Learning
The Biological Perspective
Evolution
Genes
Physiology
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Symptoms of Depression
• Feeling of despair and hopelessness• Exaggerating minor failings and ignoring positive
events• Interpreting losses as signs of personal failures
and concluding that happiness is not possible.
Physical Changes• Overeating, insomnia, lack of appetite trouble
concentrating, feeling tired all the time
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Mania
• An abnormally high state of exhilaration
• Excessive energy
• Irrational decisions
• Feeling of excessive hopefulness
• Speaking rapidly and dramatically
• Excessive feeling of ambition
• Inflated self esteem
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Stages of Mania
• 1-HypomaniaPatients are energetic, extroverted, and
assertive• 2-ManiaLoss of judgment• 3-Delusion with Paranoid ThemesSpeech is generally rapid and hyperactive
behavior may lead to violence.
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Causes of Mania
• Excessive production of one or two neurotransmitters:
• 1-Norepinephrine
• 2-Serotonin
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Bipolar DisorderManic-Depressive
• When people alternate between episodes of depression and one or more episodes of mania.
• Occurs equally in both sexes.• The onset is between 20-30 with a second peak at
40• Those who have rapid cycling may experience
more episodes of mania and depression that succeed each other without a period of remission.
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People Who Had Bipolar
• Abraham Lincoln Edgar Allan Poe
• Van Gough Virginia Wolf
• Vivian Lee Walt Whitman
• Charles Dickens Ernest Hemingway
• Newton
• Mark Twain
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Theories of Depression
• 1- Biological explanations emphasize genetic and brain chemistry.
• 2- Social explanations emphasize the stressful circumstances of people’s lives.
• 3- Attachment explanations emphasize problems with close relationships.
• 4- Cognitive explanations emphasize particular habits of thinking and interpreting events
• 5- “Vulnerability-stress” explanations draw on all four explanations.
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Biological Explanation
• Genes may exert their influence by creating biochemical imbalances
• The low production of the neurotransmitters norepinephrine and serotonin may be the cause of depression.
• The brains of depressed people seem less active. • The frontal lobes are 7% smaller in severely
depressed patients.
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Cognitive Explanations
• Internality
The reason for misery is internal
• Stability
The situation is permanent
• Lack of Control
There is no control over the situation
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Vulnerability-Stress Model of Depression
• Upsetting Events
Loss of loved ones
Loss of job
Failure
Trauma
Violence
Temporary unhappiness
• Individual Vulnerability
Biological predisposition
Low self-esteem
Insecure attachment
Learned helplessness
Negative thinking
Pessimism
Brooding
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Personality Disorders
• 1- Paranoid Personality Disorder
• 2- Narcissistic Personality Disorder
• 3- Antisocial Personality Disorder
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Paranoid Personality Disorder
• Unfounded suspiciousness
• Mistrust of other people
• Irrational jealousy
• Secretiveness
• Doubt about the loyalty of others
• Delusions of being persecuted by others.
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Narcissistic Personality Disorder
• Exaggerated sense of self-importance
• Self-absorption
• Fantasies of unlimited success & power
• Demand of constant attention & admiration
• Feeling of entitlement of special favors
• Narcissistic people cant find a good match because they expect perfection.
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Symptoms of Antisocial Personality Disorder
• 1- They repeatedly break the law.• 2- They are deceitful, using lies to con others.• 3- They are impulsive and unable to plan ahead.• 4- They repeatedly get into fights or assaults.• 5- They show reckless disregard to their own
safety or that of others.• 6- They are constantly irresponsible, failing to
meet their obligations.• 7- They lack remorse for actions that harm others.
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Causes for APD
• 1- Abnormalities in the brain and central nervous system
• 2- Problems with impulse control
• 3- Brain damage
• 4- Vulnerability-stress explanations
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Emotion
• You perceive the sensory stimulus.• The adrenal gland sends two hormones:
epinephrine and norepinephrine.• They activate the sympathetic nervous system. • That produces a state of arousal or alertness that
provides the body with the energy to act (the pupils dilate, the heart beats faster, and breathing speeds up).
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Vulnerability – Stress Explanation
• Biological vulnerability
Brain damage
Genetic predisposition
Birth complications
Central nervous system abnormalities
• Stressful Experiences
Physical abuse
Maternal rejection
Lack of contact comfort
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Dissociative Disorders
• 1- Amnesia
• 2- Fugue
• 3- Dissociative Identity Disorder
(Multiple Personality Disorder)
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The Disease Modal“The Disease Concept of Alcoholism”
by E. M. Jellinek• Alcoholism is a disease over which an individual
has no control and from which he or she never recovers
• Addiction is due to a person’s biochemistry, metabolism, and genetic predisposition.
• Genetic Predisposition:– Contribute to traits that predispose the person to
become alcoholic.– May affect biochemical processes in the brain that
make some people more susceptible than others.
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The Learning Model of Addiction
1- Addiction patterns vary according to cultural practices and the social environment.
2- Policies of total abstinence tend to increase rates of addiction rather than reduce them.
3- Not all addicts have withdrawal symptoms when they stop taking a drug.
4- Addiction does not depend on properties of the drug alone, but also on the reason for taking it.
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Active Symptoms of Schizophrenia
• 1- Bizarre delusions (Paranoid/Identity)
• 2- Hallucinations and heightened sensory awareness (auditory, visual, or tactile)
• 3- Disorganized, incoherent speech
• 4- Grossly disorganized and inappropriate behavior
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Negative Symptoms of Schizophrenia
• Loss of motivation
• Poverty of speech
• Making only brief and empty replies
• Diminished thought and emotionality
• Emotional flatness
• Unresponsive facial expressions
• Poor eye contact
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Explanation of Schizophrenia
• 1- Genetic predisposition• 2- Structural brain abnormalities• 3- Neurotransmitter abnormalities• 4- Prenatal abnormalities• 5- The Vulnerability-stress
approach
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Genetic PredispositionRisk of Developing Schizophrenia
• Identical twins……less than 50%
• Child of 2 schizophrenic parents... 34-46%
• Fraternal twins ….less than 20%
• Children with 1 schizophrenic parent 12%
• Siblings ….. Less than 10%
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Brain Abnormalities
• Signs of cerebral damage
• Decreased brain weight
• Reduced numbers of neurons in the prefrontal cortex
• Decrease in volume of the limbic regions
• Abnormalities in the thalamus
• Enlarged ventricles or spaces in the brain
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Prenatal Abnormalities
• Malnutrition
• Infectious virus during prenatal development
• Mother’s exposure to influenza virus during the second trimester of pregnancy