ðɪs ˈɔfən ɪnvˈɑːlvz ɐ skˈænɪŋ pɹˈɑːsɛs, baɪ wˌɪtʃ ðə pɑːɹtˈɪsɪpənt dᵻɹˈɛkts ɐtˈɛnʃən əkɹˌɑːs ænd ɚɹˈaʊnd ɐn ˈɪmɪdʒ, sˈɪmjʊlˌeɪɾɪŋ ʃˈɪfts ɪn pɚsˈɛptʃuːəl pɚspˈɛktɪv.
This often involves a scanning process, by which the participant directs attention across and around an image, simulating shifts in perceptual perspective.