Ideomotor apraxia without aphasia and aphasia without apraxia: the anatomical support for a double dissociation.

Spared musical abilities in a conductor with global aphasia and ideomotor apraxia.

A conductor suddenly developed global aphasia and severe ideomotor apraxia as a result of an infarct in the territory of the left middle cerebral artery. Although aphasia and apraxia remained unchanged during the following six years, his musical capacities were largely spared and he was still able to conduct. This case provides some evidence in favour of right hemisphere dominance for music.

Limb apraxia without aphasia from a left sided lesion in a right handed patient.

A right handed man had a massive left middle cerebral artery stroke. CT and MRI revealed extensive destruction of both anterior and posterior areas typically associated with language. There was, however, no aphasia, but instead a marked limb apraxia, dyscalculia, dense right visual neglect, and anosognosia. These uncommon dissociations and associations support the hypothesis that cerebral contr...

Right hand predominant constructional apraxia due to right hemisphere infarction without corpus callosum lesions.

A 74-year-old right-handed woman without cognitive impairment suddenly developed nonfluent aphasia. Brain MRI showed acute infarction in the right frontal lobe and insula without involvement of the corpus callosum. A neurological examination demonstrated not only transcortical motor aphasia, but also ideomotor apraxia and right hand predominant constructional apraxia (CA). To date, right hand p...

The rehabilitation of limb apraxia: a study in left-brain-damaged patients.

OBJECTIVE To assess the effectiveness of a rehabilitative training program for patients with limb apraxia. DESIGN Randomized, controlled trial. SETTING Neurologic rehabilitation unit of a university hospital. PATIENTS Thirteen patients with acquired brain injury and limb apraxia (lasting more than 2 months) as a result of lesions involving the left cerebral hemisphere. Patients were assig...

Limb apraxia and aphasia.