"The Postnatal Development of the Visual Cortex and the Influence of Environment." Reimpression de Les Prix Nobel en 1981. SIGNED BY TORSTEN WIESEL.

Frontispiece, pp. 277-299. Original wrappers. Corners of wrappers and pages bumped. Two small indentations in bottom edge of front wrapper. Very Good. First Edition. SIGNED BY TORSTEN WIESEL (on front wrapper). Offprint of Torsten Wiesel's Nobel Lecture, December 8, 1981. The Nobel Prize in Physiology or Medicine 1981 was divided, one half awarded to Roger W. Sperry "for his discoveries concerning the functional specialization of the cerebral hemispheres", the other half jointly to David H. Hubel and Torsten N. Wiesel "for their discoveries concerning information processing in the visual system." "Our vision works by the light around us being captured by a large number of light-sensitive cells located in the retinas at the back of our eyes. The light is converted into signals that are sent to the brain and there converted into visual impressions. Torsten Wiesel and David Hubel clarified how this process works during the 1960s: In the cerebral cortex signals are analyzed in sequence by cells with the specific tasks of interpreting contrasts, patterns, and movements. They also showed that this ability develops in children during the initial period after birth" (Nobel Prize website).