Such patients have prominent apraxia and agnosia. Occupational and speech therapies may help diminish the dysgraphia and apraxia. In addition he had signs of Balint's syndrome (mild simultanagnosia, optic ataxia, and optic apraxia). Alzheimer's disease patients with constructional apraxia have unique symptoms. The lesions most associated with ideomotor apraxia are to the left parietal and premotor areas. The left hand also showed signs of severe ideomotor apraxia. Individuals suffering from developmental verbal apraxia encounter difficulty saying sounds, syllables, and words. Ideational apraxia is a difficult disorder to diagnose. One of the defining symptoms of ideomotor apraxia is the inability to pantomime tool use. The speed and accuracy of grasping objects also appears unaffected by ideomotor apraxia. There are a variety of brain areas where lesions have been correlated to ideomotor apraxia. This test is specifically designed for ideomotor apraxia. These comorbidities can make it difficult to pick out the specific features of ideomotor apraxia. Motor imagery has been explored as a potential therapy for constructional apraxia patients. Apraxia, motor problems, and seizures are prominent during this stage.