Spatial Inversion and Facilitation in the J. Gonzalo's Research of the Sensorial Cortex. Integrative Aspects

We report on visual, tactile and auditive inversion (spatial inversion) as well as on facilitation or reinforcement phenomena in the central syndrome (described by J. Gonzalo and associated to a unilateral lesion in the parieto-occipital cortex). The unusual phenomenon of spatial inversion is very sensitive to facilitation phenomena, related to cerebral recruitment or integration, able to partially supply the deficit of cerebral excitability. From the experimental data, we found that the sensorial level versus facilitation fits to an exponential law of the type of biological growth.