“…Behavioural geneticists credit vision scientists with initiating the search for such associations (Greenspan, 2008), in early visual studies of phototaxis and octomotor responses in flies (Brown & Hall, 1936; Gavel, 1939; Kalmus, 1943; Hecht & Wald, 1934). As we noted above, advances in molecular genetics made it possible to identify and sequence the photopigment genes (e.g., Nathans, Piantanida, Eddy, Shows, & Hogness, 1986; Nathans et al, 1986).…”