Sequential and non-speech praxic abilities in developmental verbal apraxia.

Verbal and non-verbal sequential abilities were compared in a group of 10 children with developmental verbal apraxia. Manual gestures, constructional praxic abilities and non-speech volitional oral movements were also studied. Results indicated that these children were deficient in verbal sequential abilities, both with reference to their non-verbal sequential abilities and to normative data. As a group, the children did not present manual-gestural or constructional apraxias, nor oral apraxias for single non-speech volitional movements. However, most had difficulty with sequences of non-speech volitional oral movements.