BreatheWorks

Apraxia of Speech: Symptoms, Diagnosis, and Treatment

Reviewed by Corinne Jarvis
Written by Corinne Jarvis Published 11/16/2020 Updated 08/12/2023

After a stroke or other brain injury, some people know exactly what they want to say—but their mouth doesn’t cooperate. Words come out distorted, the person may “grope” for the right mouth position, and the same word may be easier one moment and harder the next. This can be apraxia of speech (AOS).

Here’s the key point:

Apraxia of speech is a speech motor planning disorder. The muscles are typically capable of moving, but the brain has difficulty planning and sequencing the precise movements needed for clear speech.

This guide covers:

  • the hallmark symptoms of apraxia of speech
  • how AOS differs from aphasia and dysarthria (common confusion)
  • what a strong diagnosis/evaluation includes
  • what evidence-aligned therapy generally targets
  • what progress looks like and how families can support communication

Quick Take

  • Apraxia of speech often presents with inconsistent errors, sound distortions, groping, and greater difficulty with longer/complex words.
  • AOS is different from:
    • aphasia (language disorder)
    • dysarthria (speech weakness/coordination disorder)
      Many people have more than one condition after stroke.
  • Therapy is usually most effective when it includes high repetition, intensive practice, and carefully structured feedback, with a plan for real-life carryover.
  • AOS can improve—especially when therapy is targeted and practice is consistent.

What is apraxia of speech?

Apraxia of speech (AOS) is a motor speech disorder in which the brain has difficulty planning and programming the movements needed for speech. People with AOS may:

  • struggle to start a word
  • produce distorted sounds
  • make errors that change from attempt to attempt
  • do better with automatic phrases (“thank you”) than novel speech

AOS is commonly associated with stroke, traumatic brain injury, and other neurologic events.

The hallmark symptoms of apraxia of speech (what to look for)

These signs tend to cluster. One sign alone doesn’t confirm apraxia.

1) Inconsistent errors

The same word may come out differently each time:

  • attempt 1: close
  • attempt 2: different distortion
  • attempt 3: closer again

2) Sound distortions (not just substitutions)

Instead of swapping one sound for another, the person produces a “not quite right” sound—because the mouth position is close but not accurate.

3) Groping or searching movements

You may see visible effort: the mouth moves as if “trying to find” the right position.

4) Difficulty increases with length/complexity

Longer words, complex multisyllabic words, and longer sentences are often harder than short automatic words.

5) Difficulty initiating speech

Some people have a hard time getting the first sound started, especially under pressure.

6) Better performance with cues

Many people improve with specific supports:

  • slowed rate
  • rhythmic cueing
  • visual modeling (“watch my mouth”)
  • repeated practice

Apraxia vs dysarthria vs aphasia (clear differentiation)

This is one of the most important parts for caregivers.

Apraxia of Speech (AOS)

  • Problem: planning/sequencing movements
  • Speech: inconsistent errors, distortions, groping
  • Strength: often improves with modeling and structured practice

Dysarthria

  • Problem: muscle weakness/coordination
  • Speech: more consistent slurring, slow/weak, monotone, nasal, quiet
  • Strength: improves with loudness/rate/precision strategies

Aphasia

  • Problem: language
  • Speech: word-finding difficulty, wrong words, comprehension issues, reading/writing issues
  • Strength: improves with language therapy and communication strategies

Common reality after stroke: a person can have aphasia + apraxia, or dysarthria + apraxia. A strong evaluation clarifies the mix so therapy targets the right mechanisms.

What causes apraxia of speech?

AOS is typically associated with damage to brain networks involved in speech motor planning. It is often seen after:

  • stroke (especially left hemisphere regions involved in speech planning)
  • traumatic brain injury
  • neurodegenerative conditions (less commonly described as “progressive apraxia of speech” in some contexts)

Diagnosis and Evaluation

What a good apraxia evaluation includes

A speech-language pathologist will typically examine:

1) Speech tasks across complexity

  • single sounds and syllables
  • short words
  • multisyllabic words
  • phrases and sentences
  • repetition tasks vs spontaneous speech

2) Consistency across attempts

One key diagnostic marker is whether errors change from attempt to attempt.

3) Presence of distortions and groping

The SLP listens for “in-between” productions and watches for searching behaviors.

4) Co-occurring language issues (aphasia screening)

Because aphasia frequently co-occurs, the SLP will check comprehension and naming to separate language breakdown from speech planning breakdown.

5) Co-occurring dysarthria screening

The SLP will check strength/coordination and respiratory/voice support to determine if weakness contributes.

6) Functional impact + goals

The clinician should ask:

  • Where is breakdown most costly? Phone calls? ordering? family conversations?
  • What are your top 3 message needs each day?

Treatment: What Speech Therapy for Apraxia Actually Targets

Apraxia therapy is typically based on motor learning principles:

  • high repetition
  • careful practice structure
  • feedback that is specific and fades appropriately
  • practice that progresses from simple → complex
  • generalization to real-life speech

Core therapy targets

1) Accurate movement patterns for sounds and syllables

This usually starts with a small set of syllables/words and builds stable production.

2) Sequencing and transitioning between sounds

AOS often breaks at transitions (“moving between sounds”), so therapy targets smooth sequencing.

3) Rate and rhythm supports (when helpful)

Many people benefit from:

  • slowed rate
  • pacing
  • rhythmic cueing
  • “chunking” phrases

4) Increasing complexity systematically

Therapy often progresses:

  • syllables → words → phrases → sentences → conversation
  • simple words → multisyllabic words → complex sentences

5) Functional phrase training (high conversion / high impact)

A practical component for many patients is building a personal phrase bank:

  • “Hi, I need help.”
  • “My name is ___.”
  • “I’m not in pain.”
  • “Call my daughter.”

This supports independence while restorative speech work continues.

6) Communication supports when needed

For some people, therapy includes additional supports:

  • writing key words
  • gesture
  • text-to-speech tools
  • AAC strategies when speech output is very limited or fatigue is high

These supports are not “giving up.” They maintain participation.

What progress looks like in apraxia therapy

Progress is often:

  • nonlinear (good days and harder days)
  • strongest first in practiced words/phrases
  • later generalizes to spontaneous speech

Typical progress markers:

  • fewer groping behaviors
  • more consistent productions
  • improved intelligibility for familiar listeners
  • improved confidence initiating speech
  • ability to repair breakdowns with strategies (“Let me try again”)

A helpful measurement question:
Can you say your key phrases reliably when you need them?

Symptom → Action Map

What you’re noticingWhat it suggestsBest next step
Errors change each attempt; distortionsapraxia patternSLP motor speech evaluation
Speech weak/quiet and consistently slurreddysarthria componentloudness/rate/precision plan
Word-finding + comprehension issuesaphasia componentlanguage evaluation + partner strategies
Speech worse under pressuremotor planning loadslow down, pause, reduce time pressure
Good in drills, poor in conversationcarryover gapfunctional phrase + graded conversation practice

What caregivers can do (without creating pressure)

Do

  • give extra time; don’t rush responses
  • ask yes/no or choice questions when needed
  • encourage re-tries with supportive language:
    • “Take your time.”
    • “Try one key word.”
  • accept multimodal communication (gesture, writing, pointing)
  • reduce background noise and face-to-face distance

Avoid

  • correcting every error
  • finishing words automatically (unless requested)
  • pressuring speed (“just say it”)
  • pretending you understood when you didn’t—use repair scripts

A simple repair script

  • “I didn’t catch that—can you show me or say one key word?”

Home practice (safe and effective structure)

Home practice is most effective when it’s:

  • short
  • frequent
  • specific
  • paired with correct cueing

A good baseline:

  • 5–10 minutes/day
  • 5 days/week
  • using the SLP’s exact targets and cueing

Avoid creating new target lists from the internet; AOS needs individualized sequencing.

If you’re searching “speech therapy near me”

For apraxia, provider experience matters. Ask:

  1. Do you treat apraxia of speech after stroke and distinguish it from dysarthria/aphasia?
  2. Do you use a structured motor-learning approach (high repetition, systematic progression)?
  3. What does home practice look like (minutes/day, targets, how to cue)?
  4. How do you train carryover to real-life speech (not just drills)?
  5. Do you offer virtual speech therapy for caregiver coaching and home practice support when appropriate?

Where BreatheWorks fits

BreatheWorks is a speech-language pathology practice with a whole-patient approach that supports patients from infancy through geriatrics. Care may include speech/voice, feeding/swallowing, orofacial myofunctional therapy (OMT/OMD), and TMJ, with an emphasis on root-cause assessment across areas like sleep and breathing when relevant. You can start with in-person care at a clinic or choose secure virtual therapy with the same patient-centered model.

FAQ: Apraxia of Speech 

What are the main symptoms of apraxia of speech?

Common symptoms include inconsistent speech errors, sound distortions, difficulty starting words, groping movements, and increased difficulty with longer/complex words.

Is apraxia of speech the same as aphasia?

No. Aphasia is a language disorder (words/understanding/reading/writing). Apraxia is a speech motor planning disorder. They can co-occur after stroke.

Is apraxia of speech the same as dysarthria?

No. Dysarthria is due to weakness/coordination of speech muscles and tends to be more consistent. Apraxia involves planning errors and is often inconsistent.

Can apraxia improve after stroke?

Yes—many people improve with time and targeted therapy. Progress often starts with practiced words/phrases and expands to spontaneous speech with structured carryover.

What does speech therapy for apraxia include?

Therapy usually includes high-repetition practice of speech movement patterns, systematic progression from simple to complex, structured feedback, and functional phrase training for daily communication.

How long does apraxia therapy take?

It varies based on severity, co-occurring aphasia/dysarthria, and practice consistency. Many people need ongoing therapy over months, with changes often showing in stages.

Does online speech therapy work for apraxia?

It can, especially for caregiver coaching, home practice support, and functional phrase training, depending on severity and the person’s ability to attend and practice safely.

What should caregivers do when speech is hard?

Reduce time pressure, encourage key-word or gesture communication, and use calm repair scripts rather than correcting every error.

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