Your child understands everything you say, follows directions, and clearly has things they want to communicate. But their speech is hard to understand, inconsistent, and doesn't seem to improve the way you'd expect. If this sounds familiar, childhood apraxia of speech may be worth exploring.
What Is Childhood Apraxia of Speech?
Childhood apraxia of speech, often called CAS, is a motor speech disorder. That distinction matters more than it might sound. CAS is not caused by muscle weakness, and it is not simply a speech delay. It is a problem with motor planning, meaning the brain has difficulty coordinating and sequencing the precise movements needed to produce speech sounds.
Think of it this way: a child with CAS typically knows what they want to say. The message is there. The challenge is in the pathway between intention and execution. The brain struggles to reliably send the right instructions to the lips, tongue, and jaw in the right order and at the right time.
This is why CAS is often called a "motor planning disorder" rather than a "motor execution disorder." The muscles themselves are typically fine. The breakdown happens earlier in the process, when the brain is programming the movements speech requires.
How CAS Differs from a Typical Speech Delay
Parents often wonder whether their child just has a speech delay or something more specific. Both can look similar on the surface, but there are key differences in how CAS presents.
With a typical speech delay, a child may leave out sounds, substitute easier sounds for harder ones, or simplify words. Their errors tend to be consistent and follow predictable patterns. Therapy usually involves practicing sounds until they become automatic.
With CAS, the errors are inconsistent. A child might say a word correctly once, then struggle with the same word moments later. They may perform worse when they try harder, or when they are asked to imitate rather than speak spontaneously. That last point is a hallmark of CAS: imitation is often harder than spontaneous speech, which is the opposite of what you see with a typical delay.
The American Speech-Language-Hearing Association (ASHA) identifies three primary diagnostic features of CAS: inconsistent errors on consonants and vowels in repeated productions of syllables or words, lengthened and disrupted coarticulatory transitions between sounds and syllables, and inappropriate prosody, especially in lexical or phrasal stress. Prosody refers to the rhythm and melody of speech. Children with CAS sometimes sound flat or robotic, or stress syllables in unexpected places.
A thorough evaluation by a qualified speech-language pathologist is the only way to determine whether CAS is the correct diagnosis. This is not a condition that should be identified based on a checklist alone.
Why Imitation Is So Hard
One of the most puzzling things parents notice is that their child seems to struggle more when asked to repeat something than when they say it on their own. This seems backward. Shouldn't having a model to follow make it easier?
For most speech sound difficulties, yes. But with CAS, the motor planning demands of deliberate, on-demand speech are higher. Spontaneous speech is often driven by strong communicative intent. The child is focused on meaning, and sometimes a word or phrase slips out more clearly than when they are asked to produce it consciously.
This is also why therapy for CAS looks different from therapy for other speech sound disorders. Simply drilling sounds in isolation or practicing words in a low-intensity format is not sufficient. CAS requires a specific, intensive approach.
What CAS Therapy Actually Looks Like
Evidence-based treatment for childhood apraxia of speech is intensive, repetitive, and highly structured. Unlike some speech therapy models where children work on a variety of goals across a session, CAS therapy typically focuses on maximizing the number of accurate, meaningful speech movement repetitions within each session.
This approach is supported by principles of motor learning, the same principles that apply to learning any complex physical skill. Repetition, feedback, and practice that gradually increases in difficulty all play central roles. The goal is to build accurate motor programs that the child can access consistently and automatically.
Research supports high-frequency therapy, often two to four sessions per week, especially in early stages of treatment. Spacing practice over time is important, but insufficient intensity is one of the most common reasons children with CAS do not make the progress they are capable of.
Home practice also matters. Families are typically given short, targeted activities to do between sessions. This is not busywork. It is part of the motor learning process, and consistent home practice significantly affects outcomes.
What Evaluation Looks Like at Lasting Language
At Lasting Language Therapy in Sandy Springs, evaluations for suspected CAS begin with a thorough case history. Amanda Smith, MS, CCC-SLP, gathers information about developmental milestones, prior therapy, medical history, and how speech difficulties have evolved over time. Parent and caregiver observations are taken seriously throughout this process.
The evaluation itself includes standardized testing, informal observation, and specific tasks designed to look at the features ASHA identifies as diagnostic markers for CAS. This includes having the child attempt to repeat words and phrases multiple times to assess consistency, looking at how sounds connect to one another within words, and evaluating the rhythm and stress patterns of speech.
Because CAS can co-occur with other conditions, including language delays, phonological disorders, and expressive language difficulties, the evaluation takes a broad view rather than narrowing in prematurely. An accurate diagnosis is the foundation of effective treatment, and no two children with CAS present exactly the same way.
Common Signs Parents Notice at Home
Parents are often the first to sense that something is different, even before they have a name for it. Some of the signs families in the Atlanta area describe include:
- A child who was babbling and then seemed to stop or regress
- Very limited consonant sounds, or sounds that disappear as words get longer
- A child who can sometimes say a word clearly but cannot reproduce it on demand
- Significant frustration during communication attempts
- Speech that sounds more clear in relaxed, low-pressure situations
- Difficulty learning new words or sounds that other children pick up easily
These patterns do not automatically mean a child has CAS. But they are worth taking seriously, and they are exactly the kind of observations that help a qualified SLP form an accurate clinical picture.
Why Early and Accurate Diagnosis Matters
CAS does not resolve on its own, and it does not respond to the same therapy approaches that work for a typical phonological disorder or articulation delay. A child who receives therapy that is not matched to the nature of their difficulty may make slow or inconsistent progress and grow increasingly frustrated.
Early and accurate diagnosis means a child can begin the right treatment sooner. It also gives families a framework for understanding what their child is experiencing and how to support them effectively at home and at school.
For children in the Sandy Springs, Roswell, Dunwoody, and Woodstock areas, as well as families across Georgia accessing services via telehealth, Lasting Language Therapy offers evaluations specifically designed to assess for CAS and related motor speech disorders.
Ready to Get a Clearer Picture?
If you have been wondering whether your child's speech difficulties might be more than a delay, an evaluation is the right next step. You do not need a referral to reach out, and you do not need to have a specific diagnosis in mind. Bring your observations, your questions, and your child, and let the assessment process do its job.
Contact Lasting Language Therapy to schedule an evaluation or to ask questions about whether an assessment for childhood apraxia of speech makes sense for your child. Early answers lead to earlier progress, and your child deserves a therapy approach built around how their brain actually works.
