signed and dated 'Zheng Guogu [in Chinese] 2002' lower right; further signed, titled and dated '"Computer controlled by pig's brain 25" Zheng Guogu [in Pinyin and Chinese] 2002' on the reverse

mixed media on canvas

work 53 x 53 cm. (20 7/8 x 20 7/8 in.)
frame 57.2 x 57.2 cm. (22 1/2 x 22 1/2 in.)

Executed in 2002.