\-Dimensional assessment of symptoms on a 0-4 scale
\-Negative and positive symptoms
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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
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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
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Avolition
Inability to initiate/persist in activities
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Alogia
Absence of speech; brief replies
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Anhedonia
Lack of pleasure experienced
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Asociality
Lack of interest in social interactions
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Affective flattening
No open reaction to emotional situations
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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
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Catatonic immobility
Keeping body and limbs in the position they are put in by someone else
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Schizophrenia causes
\-Prodromal
\-Age of onset: early adulthood
\-highly genetic
\-Causes
* Dopamine hypothesis: Too simplistic?? * Hypofrontality: Less active frontal lobes
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Agonist
\-More
\-Drug increases creation of neurotransmitter
\-Drug increases release of neurotransmitter
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Antagonists
\-Less
\-Drug interferes with release of neurotransmitter
\-Drug sits on the receptors so blocks neurotransmitter from binding
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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
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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
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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
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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
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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
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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
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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
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ADHD types
\-ADHD-IA
\-ADHD-HY
\-ADHD-C
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ADHD-IA
6 or more inattentive symptoms
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ADHD-HY
\-6 or more hyperactive/impulsive symptoms
\-6 months or longer
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ADHD-C
Met both criterion A (inattention) and B (hyperactive)
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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
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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
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Specific learning disorder treatment
\-Education intervention
* Remediate directly the underlying basic process of problems * Improve cognitive skills * Improve behavioural skills
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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)
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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
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Personality disorder clusters
\-DSM-5 divides personality disorders into groups (clusters)
\-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
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DSM-5 Conduct Disorder
* Aggression to People and Animals * Destruction of Property * Deceitfulness or Theft * Serious Violations of Rules * Subtypes * Childhood onset (symptoms began
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Limited prosocial emotion is the same thing as: (important)
“CU traits” callous-unemotional traits or low prosocial emotion
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CU traits
\-Lack of empathy, shallow affect
\-Severe and chronic aggressive/antisocial behaviour
* 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
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Substance categories
\-Depressants
\-Stimulants
\-Opioids
\-Hallucinogens
\-Other drugs
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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
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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
B. Impairment in functioning (eg. work, self-care, interpersonal relations)
C. Duration: continuous signs of disturbance for 6+ months
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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):
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
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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
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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 (
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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
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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
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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
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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”?
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Social camouflage hypothesis
* Females with ASD may develop social skills and coping mechanisms that allow them to blend in or camouflage themselves into society
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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…)
* Environmental risk factors * Compromised fetal or neonatal development * Parental age * Environmental toxins * Genetic - environment interactions * Abnormalities in brian development, not localized
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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
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What might be some challenges or issues for parents of autistic children?
* Parenting efficacy * Parenting stress * Parent mental health concerns * Parent-child relationships – few differences * Marital impact * Sibling impact – mixed * Family resources and quality of life
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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)
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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
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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
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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
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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
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Specific learning disorder treatment
* Education intervention * Remediate directly the underlying basic process of problems * Improve cognitive skills * Improve behavioural skills