Eastern theatre traditions have influenced some practitioners who have then influenced physical theatre. A number of Oriental traditions have a high level of physical training, and are visual masterpieces. The Japanese Noh tradition, in particular, has often been often upon. The energy and visual nature of Balinese theatre fascinated Antonin Artaud and he wrote extensively on it. Noh has been important for many practitioners including Lecoq, who based his neutral mask on the calm mask of Noh. Jerzy Grotowski, Peter Brook, Jacques Copeau and Joan Littlewood have all been consciously influenced by Noh. Alongside contemporary western practitioners, certain Japanese theatre practitioners were influenced by their own traditions. Tadashi Suzuki drew partly on Noh and his students and collaborators have disseminated his highly physical training into the west. This has particularly happened through Anne Bogart's collaboration with him, and the simultaneous training of her actors in both the Viewpoints method and Suzuki training. As well as Suzuki, the Butoh Movement, which originated from Tatsumi Hijikata and Kazuo Ohno contained elements of Noh imagery and physicality. Butoh, again, has been influencing Western practitioners in recent years, and has certain similarities with Lecoq's mime training in terms of ideas (impression and consequential embodiment of imagery, use of mask, etc.)