Torsten Wiesel

In 1983, I became the Vincent and Brook Astor Professor at The Rockefeller University, where I established a new Laboratory of Neurobiology and continued my close collaboration with Charles Gilbert on the circuitry of primary visual cortex.

Innate mechanisms endow the visual system with highly specific connections, but visual experience early in life is necessary for their maintenance and full development. Deprivation experiments demonstrate that neural connections can be modulated by environmental influences during a critical period of postnatal development.

It takes a long time for a country to build a strong base in science, but only a short time to destroy it. Germany was a sad example. It was a world leader in the sciences for more than a century, until its science base was demolished during the Nazi era, and the country ceded its position to the United States.