During the early part of Clark's career, she focused on creating small monochromatic paintings which were done in black, gray, and white. During the 1960s, her work became more conceptual and she used soft objects that could be manipulated by the art spectator. Clark later moved on to co-found the Neo-Concrete movement, which fellow Brazilian artist
Hélio Oiticica then joined. In the late 1950s, Clark and some of her contemporaries broke away from the Concrete group to start the Neo-Concrete movement. They published their manifesto in 1959. Hélio Oiticica would soon join the group in the next year. Clark and Oiticica fused modern European geometric abstraction art with a Brazilian cultural flavor. The Brazilian Neo-Concrete movement borrowed their artistic ideas from
Max Bill who was the director of the
Ulm School of Design in Germany during the early 1950s. They soon began making artworks the spectator could interact with physically, like Clark's Bichos (Critters), 1960–1963, which are ingenious arrangements of hinged metal plates that can fold flat, or be unfolded into three dimensions and manipulated into many different configurations. Interacting with these works the spectator was meant to become more aware of his or her physical body and metaphysical existence. Viewer participation was essential for the artwork to be complete (in fact, Clark and Oiticica referred to the audience as "participants" rather than viewers. Clark described the exchange between viewer and
Bicho as a dialogue between two living organisms. Clark spent these years in Paris where she taught at the
Sorbonne, UFR d'Arts Plastiques et Sciences de l'Art de l'Université de Paris 1, a newly founded school remarkable for its open, experimental model in contrast to the more traditional beaux-arts academy format. During the 1970s, Clark explored the role of sensory perception and psychic interaction that the participants would have with her artwork. She referred to this as "ritual without myth". She did not separate the mind from the body and believed that art should be experienced through all five senses. After 1963, Clark's work could no longer exist outside of a participant's experience. One of her most recognized
interactive art pieces is
Baba Antropofágica. Participants would moisten strings with their saliva and drape the material over a single participant's partially exposed body. This piece was inspired by a dream that Clark had about an anonymous substance that streamed out from her mouth. This experience was not a pleasurable one for Clark. She viewed it as the vomiting of a lived experience that, in turn, was swallowed by others. When she returned to
Rio de Janeiro in 1976, Clark's therapeutic focus rest upon the memory of trauma. When she changed her creative direction in 1971, she wrote "I discovered that the body is the house...and that the more we become aware of it the more we rediscover the body as an unfolding totality." She wanted to uncover why the power of certain objects brought about a vivid memory in her psychotherapy patients so that she could treat their psychosis. Depending upon the individual, the sessions could be short-term or long-term, in which treatment came about through the relationship between the relationship object and how the participant interpreted its meaning. == Reception ==