MARIA GUGGING, Austria - Nestled in the hills of Austria sits Gugging, an artists' colony with a difference where the worlds of psychiatry and art collide - with spectacular success.

Over the past 50 years, mentally ill patients here have churned out an astounding 75,000 recognized artworks, some selling for over 100,000 euros ($110,000).

In particular, it is a wellspring for "Art Brut", producing some of the giants in the popular genre like August Walla, Oswald Tschirtner and Johann Hauser.

"Raw art" or "outsider art", as it is known in English, is art by those untrained in - and untainted by - artistic conventions.

To the Frenchman who coined the term, Jean Dubuffet (1901-1985), it is found in the works of "primitive societies", of children - and of the mentally ill.

Until July 2, Dubuffet's sensation-causing 1949 L'Art Brut exhibition in Paris that started it all is being staged again at the Gugging Museum.

Featured are works by those Dubuffet met while scouring Europe's care homes for people with mental illnesses, like Adolf Woelfli, a Swiss suffering from psychosis and hallucinations.

Others include schizophrenic Aloise Corbaz who would use, at first in secret, juice from petals and toothpaste to create colorful and fantastical images, often of lovers.

"Up until then (1949), what they produced was seen, at best, as a kind of curiosity, certainly not as works of art," said Johann Feilacher, director of the Gugging Art Brut Centre.

The early history of the Gugging psychiatric hospital, in the forested hills north of Vienna, is dark. During World War II, the Nazis killed hundreds of its patients.

In the 1950s, though, its new director, Leo Navratil, began to diagnose his patients by getting them to draw.

Amazed by the results, Navratil began a correspondence with Dubuffet and as the output of its patients grew, so did Gugging's fame as a haven for art brut.

In 1981, Navratil founded at Gugging an art and psychotherapy center, later renamed the House of Artists.

A commercial gallery and museum followed, drawing a growing stream of visitors. One was the late music legend David Bowie, who bought several works for his art collection.

The psychiatric clinic itself closed around a decade ago, but the artists' colony remains.

"For us, the residents are first and foremost artists with special needs, not patients," said Feilacher, who took over from Navratil in 1986.

The artists split the proceeds from sales 50:50 with the gallery, in which they are also shareholders.

Johann Garber, whose surrealistic designs adorn Gugging's walls and whose technicolor ear sculpture is a Vienna landmark, also has an exhibition on.

"I am an artist and a genius," Garber said. "It is beautiful to draw and paint. We are happy that we have a place where we can live and draw."

Agence France-presse