EXPERIMENTAL NEUROLOGY - Suprasegmental control of pain sensation. - Chronic pain model. - Tridimensional correlation of medical images. - Experimental spinal cord trauma. NEUROCHEMISTRY - Experimental allergy and encephalitis in a mouse model. - Study of lymphokines in human inflammatory diseases, including Multiple Sclerosis. - Tropical spastic paraparesis associated with H.T.L.V.-1 infection.