Lygia Clark (October 23, 1920-April 25, 1988) was a Brazilian painter, sculptor, and installation artist. Her later works were more holistic with a focus on psychotherapy and healing.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Lygia_Clark
Bicho Pássaro do Espaço by Lygia Clark
1960 / Aluminum / 19-3/4″x20″x3/8″ / San Francisco Museum of Modern Art, CA
Lygia Clark on Artnet: http://www.artnet.com/artists/lygia-clark/