Lecture #77: Neurodevelopmental and Behavioral Problems in Children and School Dysfunction

What is a developmental delay?

Failure to meet expected developmental milestones in one or more developmental domains.

What defines a global developmental delay?

Delay in two or more developmental domains.

What developmental finding is always a red flag?

Loss of previously attained developmental milestones.

What is the key principle in managing developmental delays?

Intervene early with therapy, referrals, and family support.

What therapies are commonly used for developmental delays?

Speech therapy, occupational therapy, and physical therapy based on the affected domain.

Why is language development clinically important?

It is an early marker of cognitive development and is often associated with learning and behavioral disorders.

What is a language disorder?

Persistent impairment in language comprehension and/or production causing functional limitations.

How does language disorder typically present?

Reduced vocabulary, limited sentence structure, delayed language, and impaired conversation.

What important conditions must be ruled out in a child with speech delay?

Hearing loss, autism spectrum disorder, global developmental delay, and underlying medical or genetic disorders.

How are language disorders commonly treated?

Speech therapy.

What is a speech sound disorder?

Persistent difficulty producing speech sounds that interferes with intelligibility.

By what age should speech be 100% understandable to strangers?

By 4 years of age.

What is child-onset fluency disorder?

Stuttering with impaired speech fluency and timing.

What is social pragmatic communication disorder?

Impaired social use of language despite a desire for social interaction.

How does social pragmatic communication disorder differ from autism?

Children desire social interaction but struggle with communication, whereas autism includes impaired social interest plus repetitive behaviors.

What is the essential workup for speech or language delay?

History, physical exam, formal hearing evaluation, speech-language evaluation, assessment for autism/global delay, and referral for speech therapy.

What parent education is important for speech delay?

Read and talk to the child frequently because exposure to speech promotes language development.

What are the two core diagnostic domains of autism spectrum disorder?

Deficits in social communication/social interaction and restrictive, repetitive behaviors or interests.

What are common social communication deficits seen in autism?

Poor eye contact, poor response to name, limited joint attention, impaired social reciprocity, and difficulty developing relationships.

What repetitive behaviors are characteristic of autism?

Echolalia, repetitive movements, lining up toys, rigid routines, restricted interests, and sensory abnormalities.

What early symptoms suggest autism?

Poor eye contact, lack of response to name, language delay or regression, lack of pointing, limited pretend play, echolalia, and repetitive behaviors.

Do vaccines cause autism?

No. Vaccines do NOT cause autism.

What screening tool is recommended for autism between 18 and 30 months?

M-CHAT-R.

What is the cornerstone behavioral therapy for autism?

Applied Behavioral Analysis (ABA).

What additional therapies are commonly used for autism?

Speech therapy, occupational therapy, social skills training, functional communication support, and family support.

What is intellectual disability?

Impairment of both intellectual functioning and adaptive functioning.

Which adaptive domains are impaired in intellectual disability?

Conceptual, social, and practical functioning.

What are common causes of intellectual disability?

Fragile X syndrome, trisomy 21, fetal alcohol spectrum disorder, infections, and genetic conditions.

What is the most common preventable cause of intellectual disability?

Fetal alcohol spectrum disorder.

What initial laboratory evaluation is recommended for suspected intellectual disability?

Fragile X testing, chromosomal microarray, thyroid studies, lead level, vision and hearing evaluation when indicated.

When is neuroimaging recommended in intellectual disability?

Only when the history or physical examination suggests an underlying neurologic cause.

What educational support is required for children with intellectual disability?

An Individualized Education Program (IEP) under IDEA.

What defines Tourette syndrome?

Both multiple motor tics and one or more vocal tics present for at least one year.

What defines chronic tic disorder?

Persistent motor OR vocal tics (but not both) lasting at least one year.

What is a tic?

A sudden, brief, intermittent motor movement or vocalization that may be temporarily suppressed.

What defines a learning disorder?

Academic achievement significantly below expected despite normal intelligence and adequate instruction.

How does learning disorder differ from intellectual disability?

Learning disorder has normal intelligence with isolated academic deficits, whereas intellectual disability affects both cognition and adaptive functioning.

What are major risk factors for learning disorders?

Prematurity, family history, and preschool speech or language delays.

What is the most common type of learning disorder?

Reading disorder (dyslexia).

What history is essential when evaluating a child for learning disorder?

School performance, teacher concerns, developmental history, family history, sleep, social history, previous testing, and prior therapies.

What testing is used to diagnose learning disorders?

Cognitive testing and academic achievement testing.

What should always be assessed in children with suspected learning disorders?

Vision and hearing.

What is the physician's primary role in evaluating learning disorders?

Rule out medical causes, identify developmental or behavioral disorders, and coordinate multidisciplinary care.

What is oppositional defiant disorder (ODD)?

A persistent pattern of negativistic, defiant, disobedient, and hostile behavior toward authority figures.

How does conduct disorder differ from oppositional defiant disorder?

Conduct disorder involves violation of the rights of others or major social rules, whereas ODD does not.

What common comorbid conditions occur with ODD and conduct disorder?

ADHD, learning disorders, anxiety, depression, language disorders, and psychosocial stressors.

What history is most important when evaluating behavior problems?

Onset, frequency, severity, triggers, developmental level, psychosocial stressors, temperament, and impact on functioning.

What rating scales may be used during behavioral evaluation?

Youth Self Report, Child Behavior Checklist, and Conners Rating Scale.

What is first-line treatment for ODD and many childhood behavior disorders?

Parent behavior management training with consistent positive reinforcement and appropriate consequences.

When are medications used for behavior disorders?

As adjuncts for severe symptoms or treatment of comorbid conditions such as ADHD, anxiety, or mood disorders.

What is the overall high-yield principle emphasized throughout the lecture?

Early recognition, early intervention, multidisciplinary management, and strong family education produce the best outcomes.