الفهرس 
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Abstract
Apraxia of speech is a motor speech disorder resulting from the impairment of the capacity to program sensorimotor commands for positioning and movements of muscles for the volitional production of speech. It can occur without significant weakness or neuromuscular slowness, and in the absence of disturbances of thought or language.
Diagnosis of AOS depends on tasks placing demands on the volitional sequencing of a variety of sounds and syllables which are most likely to elicit the salient and distinguishing features of AOS. Conversational and narrative speech and reading can be used for this purpose, particularly if language and reading skills are good and the patient can give more than brief and unelaborated conversational or narrative responses.
The aim of the study is to develop a comprehensive, valid and reliable tool for evaluation of patients with acquired apraxia of speech. This was done through translation and use of the test of Apraxia Battery for Adults in evaluation of these patients.
Apraxia Battery for Adults (ABA) was designed to verify the presence of apraxia in adult patients. It consists of six subtests. The administration time of ABA II is about 20 minutes. Some patients may respond slowly and require considerably more than 20 minutes completing the battery
The test was translated to Arabic language and modified to suit Egyptian culture. Then it was applied on 156 adults divided into fifty six adult patients with expressive aphasia and /or dysarthria and one hundred healthy adult subjects. The patients group included adults of both sexes aged 18 years and above with expressive aphasia and or dysarthria and history of speech and or language affection starting after incidence of neurological insult. Pilot study was conducted to check test materials and if it is suitable to Egyptian patients.
Each subject was subjected to the apraxia evaluation protocol which consisted of three procedures to detect the presence of apraxia of speech, aphasia and dysarthria and to determine the type of dysarthria and dysphasia if present. This evaluation included complete history taking, Complete clinical examination with application of certain tests like articulation test, aphasia test, Stanford Binet and Taylor test of anxiety beside ABA II application. Patients were also evaluated by CSL, MDVP, nasometer and aerodynamic measures which proven to be not affected by AOS.