Neo-Concretism is an artistic movement that emerged in Brazil during the 1950s, primarily as a response to the earlier Concrete Art. It sought to explore the relationship between art and the viewer, emphasizing the experience of perception. Artists aimed to create works that were not just visually appealing but also engaged the audience in a more interactive and participatory manner. Key figures in the movement included Lygia Clark and Hélio Oiticica, who experimented with materials and forms to challenge traditional boundaries of art. Neo-Concretism encouraged a dialogue between art and life, promoting a sense of immediacy and emotional connection in the artistic experience.