[Space perception in cerebral hemisphere damage. Neuropsychological study].

The present study was aimed at using both semiotic and symbolic spaces as an exploratory method of the simultaneous synthesis, and interhemispherical transfers among hemiplegic patients. Thirty-six hemiplegic patients with an established neurological deficit were selected, then split into two groups: 19 patients with their dominant hemispheres affected, 17 patients with their subordinate hemispheres affected. The following types of patients have been excluded from this study: Patients with cerebral degenerative and/or progressive alterations, patients with sensory aphasias, and damage to the counterlateral side opposite the hemiplegic side. Age range was 67.2 (with 45-year-old as a minimum, and 70-year-old as a maximum). Subjects were 11 females and 25 males. Both the semiotic, and the symbolic spaces have been explored as well as the existence of a parietal, sensitive syndrome, and damage topography by means of a scanner device. A major damage of the symbolic space in patients with their dominant hemispheres affected was observed. Conversely, semiotic space, in its figurative trait, was most affected in patients with their subordinate hemispheres affected.