Comprehensive Neurodevelopmental and Psychotic Disorders Flashcards: IDD, ASD, ADHD, and Schizophrenia

What are the 3 diagnostic criteria for IDD?

Deficits in Intellectual functioning, Adaptive functioning, and onset during the Developmental period (I.A.D.).

What IQ score range suggests IDD?

65-75 or below.

Must deficits occur in just one environment (e.g., school)?

No — must appear in multiple environments (home, school, etc.).

Which gender is more likely to be diagnosed with IDD?

Males (both mild and severe cases).

What does DSM-5 say about Asperger's disorder?

It is now part of Autism Spectrum Disorder, not separate.

What are the 2 core domains of ASD?

Social communication deficits + Restricted/repetitive behaviors.

At what age are ASD symptoms usually noticeable?

By age 2 (developmental plateau or regression is a red flag 🚩).

What are the ASD severity levels?

Level 1 (support), Level 2 (substantial support), Level 3 (very substantial support).

What is the male-to-female diagnosis ratio for ASD?

4:1 (males more likely).

What are the 3 ADHD subtypes?

Inattentive, Hyperactive-Impulsive, and Combined.

How many symptoms are needed for diagnosis in children vs adults?

6 in children; 5 in adolescents/adults.

Symptoms must be present in how many settings?

Multiple settings (e.g., home + school).

Name 3 inattentive-type symptoms.

Careless mistakes, difficulty sustaining attention, forgetfulness.

Name 3 hyperactive/impulsive symptoms.

Fidgeting, blurting out answers, difficulty waiting turn.

What risk factors are associated with ADHD?

Genetics, low birth weight, maternal smoking during pregnancy.

What are the 3 major symptom categories of schizophrenia?

Positive, Negative, and Disorganized (P.N.D.).

Give an example of a positive symptom.

Delusions or hallucinations.

Give an example of a negative symptom.

Flat affect, loss of pleasure, or poverty of speech.

What is catatonia?

A state of decreased response to the environment — rigid posture, purposeless movement, or no verbal/physical response.

How long must symptoms persist for a schizophrenia diagnosis?

At least 6 months, with ≥1 month of active symptoms.

What does the diathesis-stress hypothesis suggest?

Schizophrenia results from a genetic predisposition + environmental stress trigger.

Who has an earlier onset and worse prognosis — men or women?

Men (early-mid 20s, worse cognitive impairment, more negative symptoms).

What percentage of people with schizophrenia attempt suicide?

About 20%.