1. Summation and inhibition in the frog’s retina;Barlow;J. Physiol.,1953
2. A brief-history of the feature detector;Martin;Cereb. Cortex,1994
3. The Organization of Behavior;Hebb,1949
4. Textura del sistema nervioso del hombre y de los vertebrados;Ramón y Cajal,1899
5. Observations on the scratch-reflex in the spinal dog;Sherrington;J. Physiol.,1906