Autism – A Guide for Parents - Dr T Srinivas Rajkumar MD

From First Recognition to Modern Diagnosis: Classic Symptoms, DSM-5, and ICD-11 Explained

Parenting already asks you to decode a growing brain. Autism adds a twist—the signals are there, but they arrive in a different language.

The goal is not to panic.
The goal is to understand early, act early, and act wisely.

The Story of Autism: How We Learned to See It

Medicine rarely “discovers” conditions overnight. They exist quietly until patterns become visible.

Autism is one such story.

In the 1940s, clinicians Leo Kanner and Hans Asperger described children who seemed different in a strikingly consistent way:

A preference for being alone
Difficulty with communication
Repetitive, rigid behaviors
Strong attachment to routines

Kanner called it early infantile autism.
Asperger described a milder form—children with normal intelligence but social difficulty.

For decades, these were treated as separate conditions.

The Classic Symptoms: The Old Model

Traditionally, autism was understood through three domains—the “triad of impairment”:

1. Social Interaction Difficulties

Poor eye contact
Limited interest in peers
Reduced emotional sharing

2. Communication Problems

Delayed speech
Echolalia (repeating words)
Difficulty using language socially

3. Repetitive Behaviors

Hand flapping, rocking
Strict routines
Narrow, intense interests

This model worked—but only partially.

Because reality is rarely neat.

Why the Model Changed

Clinicians began noticing inconsistencies:

Some children had good language but poor social skills
Sensory sensitivities were common but not included
Many had overlapping conditions like ADHD

The conclusion became unavoidable:

Autism was not a fixed category—it was a spectrum.

What is Autism Today?

Autism Spectrum Disorder (ASD) is a neurodevelopmental condition that affects:

Social interaction
Communication
Behavior and adaptability

It begins early in childhood and varies widely in severity.

Some individuals function independently.
Others require structured, lifelong support.

Modern Diagnosis: DSM-5 Framework

The DSM-5 made a crucial shift:

Instead of separate diagnoses (Autism, Asperger’s, PDD-NOS),
everything was unified under Autism Spectrum Disorder.

Two Core Domains (Not Three)

1. Social Communication & Interaction

Difficulty in conversations
Reduced sharing of emotions
Poor understanding of relationships

2. Restricted & Repetitive Behaviors

Repetitive movements or speech
Insistence on sameness
Highly focused interests
Sensory sensitivities (a major addition)

This inclusion of sensory symptoms was a turning point—clinicians had long observed it, but now it became central.

Additional DSM-5 Criteria

Symptoms begin early in development
They impair daily functioning
Severity is graded into Levels 1, 2, and 3 based on support needs

ICD-11: A Functional Perspective

The ICD-11 aligns with DSM-5 but emphasizes real-world functioning.

It focuses on:

Social communication deficits
Repetitive and inflexible behavior patterns

But adds important clinical nuance:

Presence or absence of intellectual disability
Level of language impairment

This matters because two children with “autism” can have entirely different needs.

The Big Shift in Thinking

Old question:
“What type of autism is this?”

New question:
“Where is this child on the spectrum, and what support do they need?”

That shift—from labels to profiles—is one of the most important advances in modern psychiatry.

Early Signs Parents Should Watch For

The brain signals early. These are not “wait and see” signs.

No babbling by 12 months
No pointing or gestures by 12 months
No meaningful words by 16 months
No two-word phrases by 24 months
Loss of previously acquired skills at any age

Early detection changes outcomes.

How Autism Appears in Daily Life

Social & Emotional

Avoids eye contact
Does not respond to name
Prefers solitary play
Difficulty understanding emotions

Communication

Delayed speech
Repeats words without context
Difficulty maintaining conversation

Behavior

Repetitive movements
Strong need for routine
Distress with change

Sensory Features

Sensitive to sounds, textures, or lights
Unusual response to pain
Seeking or avoiding sensory input

Associated Conditions

Autism often coexists with:

ADHD
Learning difficulties
Anxiety or mood problems
Sleep disturbances
Feeding issues
Seizures

A proper evaluation always looks at the whole child—not just the diagnosis.

What Causes Autism?

There is no single cause.

Current understanding points to:

Brain connectivity differences
Genetic influences
Neurochemical variations

Important clarity:

Autism is not caused by parenting, vaccines, or lack of discipline.

How is Autism Diagnosed?

Autism is a clinical diagnosis based on:

Developmental history
Direct observation
Standardized criteria

There is no single test that confirms autism.

Brain scans or EEG are done only when clinically indicated.

Treatment: What Actually Works

There is no cure—but there is effective help.

1. Behavioral Therapy

Builds communication and adaptive skills
Most effective when started early

2. Speech Therapy

Improves communication and social interaction

3. Occupational Therapy

Addresses sensory processing and daily functioning

4. Structured Teaching

Visual schedules
Predictable routines
Step-by-step learning

5. Parent Training

The most powerful intervention.

When parents understand the child’s brain,
therapy continues every day—not just in sessions.

Role of Medications

Medications do not treat autism itself.

They may help with:

Hyperactivity
Aggression
Anxiety
Sleep problems

Treatment is always individualized.

Therapies to Approach with Caution

Stem cell therapy → Experimental
Special diets → Limited evidence
Supplements → Only if deficiency
Alternative therapies → No strong proof

Science should guide decisions—not desperation.

Managing Difficult Behaviors

Behavior is communication.

Instead of reacting, decode the message.

Principles:

Stay calm and consistent
Reinforce positive behavior
Avoid punishment
Teach alternative skills

Progress comes from structure—not force.

Practical Tips for Parents

Use visual instructions
Keep routines predictable
Reduce sensory overload
Encourage strengths
Be patient—progress takes time

Prognosis: What Lies Ahead?

Autism is lifelong—but outcomes vary.

With early intervention:

Communication improves
Independence increases
Quality of life improves

The earlier the support, the better the trajectory.

A Perspective That Changes Everything

A child with autism is not refusing to connect.

They are often unable to process the world in the usual way.

When we change how we communicate and structure the environment—
the child begins to change too.

Why This Evolution in Diagnosis Matters

Modern frameworks allow us to:

Identify autism earlier
Detect subtle (Level 1) cases
Avoid mislabeling children
Plan individualized interventions

Most importantly, they help us see children who were previously invisible.

When Should You Seek Help?

If you notice:

Speech delay
Social difficulties
Repetitive behaviors

Do not wait.

Early evaluation can change the entire developmental path.

Comprehensive Autism Evaluation & Therapy in South Chennai

At our clinic, we provide:

Detailed developmental assessment
DSM-5 aligned diagnosis
Functional and cognitive profiling
Individualized therapy planning
Parent-guided intervention models

Dr. Srinivas Rajkumar T, MD (AIIMS), DNB, MBA (BITS Pilani)
Consultant Psychiatrist & Neurofeedback Specialist
Mind & Memory Clinic, Apollo Clinic Velachery (Opp. Phoenix Mall)
✉ srinivasaiims@gmail.com 📞 +91-8595155808