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Psychosis
Delusions and hallucinations
-Includes Schizophrenia
Schizophrenia
-Involves psychosis
-Loss of contact with reality
-Affects all the functions we rely on each day
-heterogenous presentation
-Dimensional assessment of symptoms on a 0-4 scale
-Negative and positive symptoms
Schizophrenia: Positive symptoms
-Presence of actively abnormal behaviour, too much of or distortion of normal behaviour
-EX: Delusions, hallucinations
-50-70% of individuals with schizophrenia will experience
Schizophrenia: Negative symptoms
-Loss or reduction of normal behaviour
-EX: Apathy, emotional/social withdrawal, great reduction (“poverty”) in thought or speech
-Spectrum
Avolition: Inability to initiate/persist in activities
Alogia: Absence of speech; brief replies
Anhedonia: Lack of pleasure experienced
Asociality: Lack of interest in social interactions
Affective flattening: No open reaction to emotional situations
Avolition
Inability to initiate/persist in activities
Alogia
Absence of speech; brief replies
Anhedonia
Lack of pleasure experienced
Asociality
Lack of interest in social interactions
Affective flattening
No open reaction to emotional situations
Schizophrenia: Disorganized symptoms
-E.g., severe and excess disruptions in speech, behaviour, emotion
-Disorganized speech: Communications problems
Loose associations or derailment - taking conversation in unrelated directions
Tangentiality - “Going off on a tangent” and not answering a question directly
-Inappropriate affect and disorganized behaviour: Laughing or crying at inappropriate times
-Catatonic immobility: Keeping body and limbs in the position they are put in by someone else
Catatonic immobility
Keeping body and limbs in the position they are put in by someone else
Schizophrenia causes
-Prodromal
-Age of onset: early adulthood
-highly genetic
-Causes
Dopamine hypothesis: Too simplistic??
Hypofrontality: Less active frontal lobes
Agonist
-More
-Drug increases creation of neurotransmitter
-Drug increases release of neurotransmitter
Antagonists
-Less
-Drug interferes with release of neurotransmitter
-Drug sits on the receptors so blocks neurotransmitter from binding
Schizophrenia medication
-Neuroleptics
Dopamine antagonists
When effective, neuroleptics help people think more clearly
Reduce or eliminate positive symptoms
-Effective for 60-70% of persons
-Newer antipsychotics
Have fewer side effects
Reduce positive and negative symptoms
Help in improving cognitive functioning
-Acute and permanent extrapyramidal and Parkinson-like side effects
Higher rate in conventional antipsychotics
Lower rate in new antipsychotics
-Medication compliance can be problimatic
Other psychotic disorders
Schizophreniform disorder
Brief psychotic disorder
Delusional disorder
Schizoaffective disorder
Mood + Schizophrenia
Delusional disorder
Schizotypal personality disorder
Schizophreniform Disorder (more than 1 month, less than 6)
Brief Psychotic disorder (more than 1 day, less than 1 month)
Delusional Disorder
Schizoaffective Disorder
Mood + Schizophrenia
Schizotypal personality disorder
-Clinical features
Behaviour and dress is odd, unusual
Interpersonal and social deficits. Often socially isolated; may be highly suspicious of others
Magical thinking, ideas of reference, and illusions of common
Many also meet criteria for major depression
Autism spectrum disorders (ASD) criteria
Significant and persistent deficits in social interaction and communication skills
Restricted, and repetitive patterns of interests and behaviours
Symptoms must be present in early developmental period
Symptoms cause clinically significant impairment in social, occupational, or other important areas of current functioning
Not due to intellectual disability or general delay
ASD (Autism spectrum disorder) prevalence
Estimates are as high as 1 in 68 children in US
Approximately 1 in 66 children and youth diagnosed in Canada
Strengths of autism
-Above-average intelligence
CDC reports 46% of autistic kids have above average intelligence
-Being able to learn things in detail and remember information for long periods of time
-Being strong visual and auditory learners
-Excelling in math, science, music, or art
Autism and gender
-4-4.5 times more common among boys
-Gendered concept
Early cases studies and theories “extreme male brain”
Differential male-to-female ratio
New interest in females
Co-occurrence of autism and transgender or non-binary identities
ADHD types
-ADHD-IA
-ADHD-HY
-ADHD-C
ADHD-IA
6 or more inattentive symptoms
ADHD-HY
-6 or more hyperactive/impulsive symptoms
-6 months or longer
ADHD-C
Met both criterion A (inattention) and B (hyperactive)
ADHD treatment
-Biological (medication)
Stimulant medication works in 70-80% of cases
Improves motor planning, response inhibition, compliance
Decreases negative behaviours
Effects not long term
-Psychological (behavioural)
Goal setting and reinforcement
Specific learning disorder
-Performance substantially below what would be expected given age, IQ, and education
-Deficits in reading, math, and written expression
-Problems persist despite intervention
Specific learning disorder treatment
-Education intervention
Remediate directly the underlying basic process of problems
Improve cognitive skills
Improve behavioural skills
Intellectual disability
-Intellectual functioning significantly below average
Language and communication impairments
-Wide range of impairment in daily activities (mild to profound)
-Individuals with ID have difficulty learning
-DSM-5 excludes numeric cut-offs for IQ scores
-Criteria
Person must have significantly subaverage intellectual functioning (IQ 70)
Concurrent deficits or impairments in adaptive functioning
Age of onset (deficits evident before age of 18)
Personality disorder
-Persistent pattern of emotions, cognitions, behaviour resulting in enduring emotional distress for affected person and others
-Distress may (or may not) be subjective
-Causes difficulties with work and relationships
-The DSM-5 lists 10 specific personality disorders
Personality disorder clusters
-DSM-5 divides personality disorders into groups (clusters)
Cluster A: Odd or eccentric
Cluster B: Dramatic, emotional
Cluster C: Anxious, fearful
Cluster A: Odd or eccentric
-Paranoid
-Schizoid
-Schizotypical
Cluster B: Dramatic, emotional
-Histrionic
-Narcissistic
-Antisocial
-Borderline
Cluster C: Anxious, fearful
-Avoidant
-Dependent
-Obsessive compulsive
Antisocial personality disorder
-Aggressive, lying, cheating, no remorse, substance abuse, unnatural death in boys with this disorder
-Moral insanity, egopathy, sociopathy, and psychopathy
-50% to 80% of male offenders diagnosed with this disorder
-Conduct disorder in children
DSM-5 Conduct Disorder
Aggression to People and Animals
Destruction of Property
Deceitfulness or Theft
Serious Violations of Rules
Subtypes
Childhood onset (symptoms began <10 years old)
Adolescent onset (symptoms began >10 years old)
Unspecified onset
Specifier: with Limited Prosocial Emotion
Limited prosocial emotion is the same thing as: (important)
“CU traits” callous-unemotional traits or low prosocial emotion
CU traits
-Lack of empathy, shallow affect
-Severe and chronic aggressive/antisocial behaviour
-Low emotional responsiveness to others
ASPD / Conduct disorder / CU trait treatment
-Prevention is key
-Parent training for diagnosed children
Parent-child interaction therapy
Mostly behavioural focused
-Multifaceted for juvenile offenders
-CBT has limited impact
-Not much for adults
Borderline personality disorder
-Turbulent relationships, fear abandonment, self-mutilating behaviours, no control over emotions
-Often engage in suicidal or self-mutilating behaviours
-Approximately 10% die by suicide
-75% achieve remission six years after initial treatment
Borderline personality disorder (BPD) treatment (important)
-Antipsychotics and antidepressants
-Dialectical behaviour therapy (DBT)
Dialectical behaviour therapy (DBT) (Important)
-Effective in reducing suicide attempts
-Creator: Marsha Linehan
-Traditional components: individual outpatient therapy, skills training, phone consultation, case consultation for therapists
Levels of substance us involvement
Substance use
Substance intoxication
Substance abuse
Substance dependence
Substance withdrawal
Substance use disorder
-Disorder described as an “addiction”
-Physiological dependence
Tolerance: greater amounts of drug needed to experience same effect
Withdrawal: negative physical response when the substance is no longer ingested
-Psychological dependence: Behavioural reactions to substance dependence
Substance categories
-Depressants
-Stimulants
-Opioids
-Hallucinogens
-Other drugs
Opioids
-Natural chemicals in opium poppy having a narcotic effect
-Sleep-inducing, pain-relieving (analgesic)
Canada in grip of opioid crisis: prescription and illegal; high in First Nation adults
Withdrawal is unpleasant
Intravenously taken: risks of HIV
High morality rates
Dopesick
Substance abuse treatments
-Substance abusers arrive at treatment at different stages to change substance use behaviour
-Motivational enhancement therapy (MET): increase motivation to change behaviour
Medication
Agonist substitution (e.g., Buprenorphine, Nicotine patches)
Antagonist treatments (e.g., Naltrezone)
Aversive treatment (e.g., Antabuse)
Psychosocial treatments
-Inpatient facilities
-Alcoholics anonymous (AA)
-Controlled use
-Component treatment
-Relapse prevention
Civil commitment
-Most provincial legislation permits commitment when the person
Has a mental disorder
Poses danger to himself/herself or others
Is in need of treatment/other treatments have failed
-Differences in definition/interpretation
-Right to refuse treatment
Deinstitutionalization and Homelessness
-Conditions leading to homelessness
Younger people, women, families, First Nations people, refugees, ethnic minorities
-Downsizing/closure of mental hospitals
Transinstitutionalization
Deterioration in care
Transinstitutionalization
Moving people to nursing homes, group residences, jails prisons
Criminal commitment
-Criminal commitment is the process by which people are held because:
They have accused of committing a crime and are detained in a mental health facility until fit to participate in legal proceedings
OR
They have been found not criminally responsible on account of a mental disorder (NCRMD)
Insanity defence
-M’Naghten rule, adapted by Canadian law in 1894
-Not guilty by reason of insanity (NGRI)
-Not criminally responsible on account of mental disorder (NCRMD)
-Not fit to stand trial
-Reactions to NCRMD
Duty to warn and protect
-Mental health practitioners abide by Canadian Psychological Association (CPA, 2017) guidelines
Stop lethal consequences of client’s actions
Report to appropriate authorities
Limits to condentiality
Risks to patient not to be undervalued
Patients’ rights
-Canadian citizens are constitutionally protected
-The right to treatment
-The right to refuse treatment
The right to treatment
Least restrictive setting possible
The right to refuse treatment
-Drugs’ side effects
e.g., antipsychotics
-Controversial
Delusions
-Gross misrepresentations of reality
-EX: Delusions of grandeur or persecution
-Cotard’s syndrome and Capgras syndrome
Hallucinations
-Have sensory experience even though not actually there
Can involve any or all senses
-Auditory most common
Schizophrenia criteria
A. “Two (or more) of the following, each present for a significant portion of time during a 1-month period (or less iff successfully treated):
Delusions*
Hallucinations*
Disorganized speech*
Grossly disorganized or catatonic behaviour
Negative symptoms (ie. diminished emotional expression or avolition)”
B. Impairment in functioning (eg. work, self-care, interpersonal relations)
C. Duration: continuous signs of disturbance for 6+ months
Schizophrenia stats
0.2% to 1.5% in general population
1.3% Canadians over age 15 have received diagnosis
Less than average life expectancy
Men and women affected at same rate
Can be suicidal
Development of schizophrenia
Age of onset: symptoms can begin early
Prodromal stage: unusual behaviours before serious symptoms occur
Takes 2-10 years for person at high risk
Relapse possible even after early treatment
Cultural schizophrenia factors
Universal; occurs in all races and cultures
Cultural variations to treatment
Treatment outcomes are better in poorer countries
Stereotypes and bias: misdiagnoses
Genetic schizophrenia factors
Multiple gene variances combine to produce vulnerability
Family studies
Children of schizophrenic parents likely to have it too
Seen within families; see figure 14.2
Predisposition may be inherited
Gene-Environment Interactions
Genes may act as vulnerability factors
Interact with specific environmental pathogens at crucial deveopmental stages
Leading to development of schizophrenia
Potential Causes of Schizophrenia: Neurotransmitter Influences
Dopamine Hypothesis
Drugs that increase dopamine (agonists), can result in schizophrenia-like behaviour
Eg. L-dopa for Parkinson’s disease
Drugs that decrease dopamine (antagonists) , reduce schizophrenia-like behaviour
Can lead to side effects that look like Parkinson’s disease
Evidence against dopamine hypothesis → too simplistic
Current theories emphasize that some dopamine sites might be hyperactive, others hypoactive. Also that glutamate may be implicated
Neurobiological influences
Dopamine
Clues to the role of dopamine in schizophrenia
Neuroleptics (dopamine antagonists) effective in treating
Neuroleptics produce negative side effects
L-dopa (agonist) produces schizophrenia-like symptoms
Amphetamines, which activate dopamine, can worsen some symptoms in schizophrenia
Potential Causes of Schizophrenia: Neurobiological Influences
Brain: Structural and Functional Abnormalities
Majority have enlarged ventricles
About 50% have hypofrontality-less active frontal lobes
Viral infections during early prenatal development
Relation between early viral exposure and schizophrenia is inconclusive
Schizophrenia Psychological and Social Influences
Role of stress
May activate underlying vulnerability nad/or increase risk of relapse
Family interactions (not thought to be casual)
High levels expressed emotion (criticism, emotional overinvolvement/intrusiveness, low tolerance of the disorder) in the family is associated with relapse
Also likely to be a reciprocal process
Role of psychological factors
Psychological factors likely exert only a minimal effect in producing schizophrenia
Psychosocial interventions include medication-taking compliance
Transcranial magnetic stimulation (TSM) treatment for hallucinations
TMS also improves auditory hallucinations: effect is brief
Psychosocial Interventions for Schizophrenia
Psychosocial Approaches
Behavioural (ie. token economies) on inpatient units
Social and living skills training
Stress management, identifying relaspse_waring signs
Behavioural family therapy
Vocational rehabilitation
Technology
Early intervention
Psychosocial approaches are usually a necessary part of medication therapy
Schizophrenia treatment across cultures
Treatments vary from culture to culture: herbal medicines, acupuncture, oral treatments, imprisonment, ancestor worship. Etc.
Prevention
Identify and treat children who may be at risk for developing schizophrenia
Identify instability in early family-rearing environment
Treat persons in prodromal stages of disorder
Schizotypal personality disorder
Clinical Features
Behaviour and dress is odd, unusual
Interpersonal and social deficits. Often socially isolated; may be highly suspicious of others
Magical thinging, ideas of reference, and illusions common
Many also meet criteria for major depression
Causes?
Schizotypal personality – A phenotype of a schizophrenia genotype?
Higher prevalence of this PD in relatives of people with schizophrenia
Schizophreniform Disorder (Partial Criteria)
A. “Two (or more) of the following each present for a significant portion of time during a 1-month period (or less if successfully treated):
delusions*
hallucinations*
disorganized speech*
Grossly disorganized or catatonic behaviour
Negative symptoms (ie. diminished emotional expression or avolition)
B. Duration: more than 1 month, less than 6
C. Rule out other psychological disorders (esp. Schizoaffective; depressive, bipolar with psychotic features)
D. Rule out effects of substance, medical condition
Estimated 0.2% prevalence
Associated with good premorbid functioning; most resume normal lives
Brief psychotic disorder (partial criteria)
A. Presence of 1+ of following symptoms
delusions*
hallucinations*
disorganized speech*
Grossly disorganized or catatonic behaviour
B. Durination: more than 1 day, less than 1 month. Return to premorbid functioning
C. Rule out other psychological disorder, effects of substance, medical condition
Specify if:
With marked stressor(s)
Without marked stressor(s)
With peripartum onset
With catatonia
Schizoaffective disorder
A. “An uninterrupted period of illness during which there is a major mood episode (major depressive or manic) concurrent with Criterion A for Schizophrenia.
Note: Major Depressive Episode must include Criterion A1: depressed mood.
B. Delusions or hallucinations for 2 or more weeks in the absence of a major mood episode (depressive or manic) during the lifetime duration of the illness.
C. Symptoms that meet criteria for a major mood Episode are present for the majority of the total duration of the active and residual periods of the illness.”
D. Rule out substance or medical condition
Specify whether: bipolar or depressive type
Specify if: with catatonia
Delusional disorder
Delusions that are contrary to reality without other major symptoms of schizophrenia
But may be socially withdrawn
Type of delusions: erotomanic, grandiose, jealous, persecutory, and somatic
Rare (<0.5% of population).
May have late onset (e.g., first admission to psychiatric facility > 40 years of age)
Better prognosis than schizophrenia
Schizotypical personality disorder
Clinical Features
Behaviour and dress is odd, unusual
Interpersonal and social deficits. Often socially isolated; may be highly auspicious of others
Magical thinking, ideas of reference, and illusions common
Many also meet criteria for major depression
Cause?
Schizotypal personality - A phenotype of a schizophrenia genotype?
Higher prevalence of this PD in relatives of people with schizophrenia
Summary of schizophrenia and psychotic disorders
Schizophrenia includes a spectrum of cognitive, emotional, and behavioural dysfunctions
Positive, negative, and disorganized symptoms clusters
Other DSM-5 disorders include psychotic features
Several causative factors have been implicated for schizophrenia
Unfortunately, successful treatment rarely includes complete recovery
Overview of DSM-5 criteria for autism spectrum disorders
A. Significant and persistent deficits in social interaction and communication skills
B. Restricted, and repetitive patterns of interests and behaviours
C. Symptoms must be present in early developmental period
D. Symptoms cause clinically significant impairment of social, occupational, or other important areas of current functioning
E. Not due to intellectual disability or general delay
Male prototype of ASD
Are clinicians biassed towards a more “male prototype”?
Are diagnostic criteria primarily developed on male-centric description?
Are families and primary care providers “missing” girls if they don’t fit into a “male prototype”?
Social camouflage hypothesis
Females with ASD may develop social skills and coping mechanisms that allow them to blend in or camouflage themselves into society
Autism symptoms in girls
Social scripts (overly rehearsed?)
Imaginative play -more scripted/ obsessive
Making symptoms
At school, polite and make eye contact; meltdown at home
Socially acceptable interests (eg. horses, princesses, cats…)
Characteristics associated with autism
Self-injurious behaviours
Sleep disturbances
Gastrointestinal symptoms
Epilepsy
Co-morbid mental health concerns
ADHD, anxiety and fears, mood
Cognitive abilities
Risks for development of autism
Genetic and biological factors
Environmental risk factors
Compromised fetal or neonatal development
Parental age
Environmental toxins
Genetic - environment interactions
Abnormalities in brian development, not localized
Adolescence and adulthood considerations with Autism
Anxiety – socializing, changes, public places...
Need emotional support
Need access to special interest
Need downtime
Need social participation, establish support networks
Questions about valid indicators of Quality of Life
Transitions
Out of educational system, health care systems
Greater self-directed time
Develop increased independence (decision making, etc.)
New social situations and peer groups
What might be some challenges or issues for parents of autistic children?
Obtaining diagnosis
Caregiving demands
Shaping expectations
Acceptance
Parenting efficacy
Parenting stress
Parent mental health concerns
Parent-child relationships – few differences
Marital impact
Sibling impact – mixed
Family resources and quality of life
Functional impairment: WFIRS
Family (eg. fights with parents, siblings)
School (eg. learning: needs extra help, behaviour: detention)
Life skills (eg. problems getting ready for school)
Self-concept (eg. feels bad about self)
Social Activities (eg. is tested, teases others, problems making friends)
Risky Activities (eg. conduct problems, drugs, aggression)
ADHD stats
ADHD: 3.4% children and adolescents worldwide
Boys outnumber girls 4:1
2.6% canadians overall; more men than women
Problem of overdiagnosis of ADHD in North America
Comorbid with disruptive behaviour disorders
Between 5% and 15% youth of various ages and cultures
18% disabled Canadians over age 15 have a learning disability
Boys and girls equally affected
Related to later development of other mental health problems
Less education, underemployment, unemployment
Approximately 90% have mild intellectual disability (IQof 50-70)
Occurs in 1%-3% of general population
Chronic course: people do not recover
Less severe forms relatively independent and productive with training and support
Male-to-female ratio is 1.6:1 in mild form; no gender differences in severe forms
ADHD causes
Thought to be highly genetic
80% heritable
Multiple genes responsible (25-45 identified)
Inhibition of dopamine gene (DAT1)
Prenatal smoking, stress, alcohol use
Abuse, neglect
Prenatal: eg exposure to substance use
Fetal alcohol syndrome: heavy alcohol consumption during pregnancy
Perinatal: issues with labour and delivery (eg. lack of oxygen)
Post-natal: head injury, infections
ADHD associations
Subtle brain differences; reduced with medication
Volume (size) of brain is slightly smaller
Sleep problems
Negative responses by others create low self-esteem
Specific learning disorder causes
Genetic: found in identical twins, relatives
Neurobiological: subtle brain damage
Phonological processing problems and reading disabilities linked in both children and adults
Environmental factors: SES, cultural expectations, parental interactions and expectations, child management practices, support (lack of) provided in school
Specific learning disorder treatment
Education intervention
Remediate directly the underlying basic process of problems
Improve cognitive skills
Improve behavioural skills
Combination of programs effective
Cluster A disorders
-Paranoid personality disorders
-Schizoid personality disorder
-Schizotypal personality disorders
Cluster C disorders
Avoidant personality disorder
Dependent personality disorder
Obsessive-compulsive personality disorder
Cluster B disorders
Histrionic personality disorder
Narcissistic personality disorder
Antisocial personality disorder
Paranoid personality disorders
Suspicious, mistrustful of others without justification
Argumentative, may complain, quiet, hostile toward others, suicidal
Bears relationship to:
Paranoid type of schizophrenia
Delusional disorder
Schizoid personality disorders
Detachment from social relationships, no desire to enjoy closeness with others, cold, aloof
Homelessness
Extreme social deficiencies
Social isolation, poor rapport, and constricted affect
Schizotypal Personality Disorder
Social deficits, psychotic-like symptoms, cognitive impairments/paranoia
“Magical thinking”
Report unusual perceptual experiences
Hypersensitive to criticism as children
Avoidant Personality Disorder
Interpersonally anxious
Views self as socially inept, unappealing
Fear of rejection/ shame
Pessimistic about their future
Restraint in personal relationship
Dependent Personality Disorder
Interpersonally dependent, anxious
Submissive, timid, and passive
Feelings of inadequacy, sensitive to criticism, need reassurance
Cling to relationships