Chapter 11 (Lecture - Ch 9 in textbook) Flashcards
Neurodevelopmental Disorders
Neurodevelopmental disorders include:
- fetal alcohol spectrum disorders (FASD)
- intellectual disorders
- motor disorders (Tourette syndrome)
- communication disorders
- genetically determined disorders (down and Williams syndrome)
- conditions associated with traumatic and congenital brain injuries (cerebral palsy)
There is a wide variation in the symptoms and severity associated with these disorders
Autism Spectrum Disorder (ASD)
- characterised by persistent deficits in social communication and social interaction across multiple contexts including deficits in social reciprocity, nonverbal communicative behaviours used for social interaction, and skills in developing, maintaining and understanding relationships
- presence of restricted, repetitive patterns of behaviour, interest, or activities
- many previously diagnosed with Asperger’s disorder would now receive a diagnosis of autism spectrum disorder without language or intellectual impairment
neurodevelopmental disorders share 2 key features
- a neurological dysfunction that affects the capacity of the individual for intellectual, social, and (sometimes) physical development
- individuals diagnosed with these disorders may struggle to fit in and be fully included in society
Focus on being biological in nature and posing challenges to social functioning and educational achievement
ADHD
- characterised by inattentive, hyperactive, impulsive behaviours
- stereotypically: a boy who has difficulty sitting well, being organised, concentrating, resisting impulses, and who may be aggressive
- often first noticed at school, where these behaviours are a deemed “problematic”
- once referred for assessment, the DSM-5 checklist is used to see if the child meets criteria for diagnosis (6/18 symptoms, consistently for 6 months)
- many of the listed criterion are normal childhood behaviours - it is the frequency and social impact of them that leads to diagnosis
ADHD symptoms and checklist
clinicians uses the DSM-5 checklist to make the diagnosis, the child must have presented 6 out of 18 symptoms consistently over a period of 6 months
These symptoms include when a child has:
- difficulty waiting their turn
- often talks excessively
- often fails to give close attention to details or make mistakes
- often does not follow through on instructions and fails to finish schoolwork or workplace duties
While these sorts of symptoms may be problematic (leading to impairment or hindering performance), it is easy to see how they can be interpreted subjectively, perhaps leading to over-diagnosis of the disorder
Also:
- these symptoms are evident among adults when they are stressed, anxious, or short of time
- many high functioning and very effective people may display these symptoms
- context specific nature is evident: one view of ADHD is that specific people (children) do not adequately “fit” with expectations in classrooms and behaviour is deemed a “problem”
ADHD criticisms
Key criticism: diagnositc criteria may be explained by immaturity (has not yet reached a particular level of development) - the youngest children in a school cohort are more likely to be diagnosed with ADHD, and even more likely to be prescribed medication (unable to “fit” with expectations and context)
- estimated that approximately 1.1 million children received an inappropriate diagnosis and over 800,000 received stimulant medication due only to relative maturity -illustrating the importance of this “immaturity” or development view
- another critique points out that a regimented classroom setting may lead to misbehaviour for some children who then would be more likely to be diagnosed, compared to children in a more active, flexible, and hands-on environment (contextual influence on diagnosis)
ADHD global prevalence
5% in children
2.5% in adults
Autism
- difficulty understanding the need to be social and managing social interactions is an essential feature of autism
- evolutionary perspective: social relations are the core of our success and survival, so autism may have brought some advantages for individuals as well
- this visibility and perceived prevalence of autism may have risen as society became increasingly urban and complex- became an important concept in the 1940s
Autism - clinical perspective
People with autism struggle to manage social life and social expectations
- core symptoms of autism: difficulties with reciprocal social interaction and communication, as well as repetitive, stereotypical routines and behaviours and associated sensory symptoms
There is no biological marker for autism; it can not be observed or diagnosed with a brain scan, it is not clear what causes it
High prevalence of childhood mental disorders - ADHD and Autism
- ADHD 3.7 prevalence
- Autism Spectrum disorder 0.4 prevalence
ADHD DSM-5 diagnosis
3 components: must feature at least 1:
1. inattention
2. hyperactivity
3. impulsivity
- in the DSM-5 its 2 they focus on: inattention and hyperactivity-impulsivity (they combine 2 and 3)
- several inattentive or hyperactive-impulsive symptoms were present prior to age 12 years
- several inattentive or hyper-impulsive symptoms are present in two or more settings (home, school, work, etc)
- there is clear evidence that the symptoms interfere with, or reduce the quality of social, academic, or occupational functioning
- the symptoms do not occur exclusively during the course of schizophrenia or another psychotic disorder and are not better explained by another mental disorder (e.g., mood disorder, anxiety disorder, dissociative disorder, personality disorder, substance intoxication or withdrawal)
3 types of ADHD and 3 severity levels
3 Types:
1. combined
2. predominantly inattentive
3. predominantly hyperactive/impulsive
3 Severity levels:
1. mild (w/ minor impairments)
2. moderate
3. severe
Culture-related diagnostic issues for ADHD
Positivist view tells us ADHD “exists everywhere” (not just North America), but:
- differences in ADHD prevalence rates across regions appear attributable mainly to different diagnostic and methodological practices
- cultural variation in attitudes toward or interpretation of children’s behaviours (some people think that’s just how kids act)
- clinical identification rates in the US for African Americans and Latino populations tend to be lower than white populations
- informant symptom ratings may be influenced by cultural group of the child and informant
Gender-related diagnostic issues for ADHD
- ADHD is more frequent in males than in females in the general population
- ratio 2:1 in children
- ratio 1.6:1 in adults
- females more likely to display inattentive presentation
Functional consequences of ADHD
- associated with reduced school performance and academic attainment, social rejection, in children
- in adults, poorer occupational performance, attainment, attendance, and higher probability of unemployment and elevated interpersonal conflict
- children w ADHD are significantly more likely than other kids to develop conduct disorder in adolescence and antisocial personality disorder in adulthood which then increases likelihood for substance use disorders and incarceration
- people w ADHD are more likely to be injured
- traffic accidents and violations are more frequent in drivers with ADHD
- may be an elevated likelihood of obesity among individuals with ADHD
- ADHD often interpreted by others as laziness, irresponsibility, or failure to cooperate
- family and friend relationships may be negative