- Algeria
- Omodeo et al., 2003
- Belgium
- Muys, 2013
- Bulgaria
- Zicsi and Csuzdi, 1986b; Stojanovic et al., 2012; Szederjesi, 2012
- Denmark
- Blakemore, 2007
- Finland
- Blakemore, 2007
- France
- Bouche, 1972
- Iran
- Mirmonsef et al., 2011; Farhadi et al., 2013
- Madeira
- Talavera, 1996
- Norway
- Blakemore, 2007.
- Panama
- Brown and Fragoso, 2007
- Romania
- V.V.Pop, 2012.
- Sweden
- Blakemore, 2007
- Turkey
- Omodeo and Rota, 1989
- Uruguay
- Grosso and Brown, 2007
- Uzbekistan
- Rakhmatullaev et al., 2010
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Data are not exhaustive. The database is permanently a work in progress.