Table 1.
Languages and their affiliation, location where data were collected, and by whom
| Language | Language family | Country | Researcher |
| English | Indo-European | United States | A.M. |
| Farsi | Indo-European | Iran | S.S. |
| Turkish | Turkic | Turkey | O.O. |
| Dogul Dom | Dogon | Mali | B.L.C. |
| Siwu | Atlantic-Congo | Ghana | M.D. |
| Cantonese | Sino-Tibetan | Hong Kong, Macau | H.d.S. |
| Lao | Tai-Kadai | Laos | N.J.E. |
| Malay | Austronesian | Malaysia | R.A.R., A.M. |
| Semai | Austroasiatic | Malaysia | S.T. |
| Kilivila | Austronesian | Papua New Guinea | G.S. |
| Mian | Trans New Guinea | Papua New Guinea | S.F. |
| Yélî Dnye | Isolate | Papua New Guinea | S.C.L. |
| Umpila | Pama-Nyungan | Australia | C.H. |
| Tzeltal | Mayan | Mexico | P.B. |
| Yucatec | Mayan | Mexico | O.L.G. |
| Zapotec | Oto-Manguean | Mexico | M.A.S. |
| Yurakaré | Isolate | Bolivia | V.H., R.v.G. |
| American Sign Language | Sign language | United States | K.E., B.N., L.O. |
| British Sign Language | Sign language | United Kingdom | B.W., B.L. |
| Kata Kolok | Sign language | Bali | C.d.V. |
The sign languages are unrelated to each other; they are not from the same language family.