apraxia of speech

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loss of ability to carry out familiar purposeful movements in the absence of sensory or motor impairment, especially impairment of the ability to use objects correctly.
amnestic apraxia loss of ability to carry out a movement on command due to inability to remember the command.
apraxia of gait a common disorder of the elderly in which the patient walks with a broad-based gait, taking short steps and placing the feet flat on the ground.
motor apraxia impairment of skilled movements that is not explained by weakness of the affected parts; the patient appears clumsy rather than weak.
sensory apraxia loss of ability to make proper use of an object due to lack of perception of its purpose.
apraxia of speech a speech disorder similar to motor aphasia, due to apraxia of mouth and neck muscles because of a lesion interfering with coordination of impulses from Broca's motor speech area. Called also aphemia.

aprax·i·a of speech

(ă-prak'sē-ă spēch)
Speech disorder due to cortical sensorimotor damage that impairs the ability to program speech musculature for volitional production of sequenced phonemes. Often accompanies motor aphasia.
See: apraxia, oral apraxia, developmental apraxia of speech
Synonym(s): articulatory apraxia, dyspraxia of speech, verbal apraxia, verbal dyspraxia.
References in periodicals archive ?
Acquired apraxia of speech (AOS) in adults is a controversial disorder.
Apraxia of speech is an often overlooked disorder with no known cause.
Using electropalatography to treat severe acquired apraxia of speech.
CASANA is a national charity that raises awareness, and provides information, support, education and research funding for childhood apraxia of speech, a serious neurological speech disorder affecting children.
An innovative, sleek and extremely portable device, the Xpress delivers powerful communication capabilities for individuals living with stroke, autism, Down syndrome, traumatic brain injury, aphasia, ALS, and apraxia of speech.
Over the course of her professional career, she has developed research grants and published research investigating the neural mechanisms of spoken language production and the treatment of neurogenic communication disorders, particularly aphasia and acquired apraxia of speech.