Speech Sound Disorders

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Articulation Disorders

Focus on errors in the production of individual speech sounds, such as distortions and substitutions.

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Phonological Disorders

Focus on predictable, rule-based errors that effect more than one sound, such as fronting, stopping, gliding, or final consonant deletion. 

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Apraxia of Speech

Motor speech disorder that makes it difficult for the brain to plan the sequence of speech movements, and can be developmental or due to neurologic trauma later in life. The muscles used for speech are not weak, but don't form words correctly or consistently. 

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Dysarthria

Motor speech disorder caused by nervous system damage, which disrupts, weakens, and sometimes paralyzes muscles used for speech. There are two types of dysarthria: developmental and acquired. Developmental dysarthria is caused by brain damage during fetal development or at birth, whereas acquired dysarthria is caused by brain damage later in life.

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