“…The second pointer to the potential value of studying mental state concepts in congenitally blind children is that there have been both clinical reports and experimental evidence suggesting that some visually impaired children have specific delays in psychological perspective taking (Andersen, Dunlea & Kekelis, 1984;Fraiberg, 1977;Mulford, 1983). Preliminary evidence has been reported in relation to the children's spatial perspective taking (Gelber, 1980;but see Schwartz, 1983, for conflicting evidence for the partially sighted), understanding the concept of what another might see (Bigelow, 1988(Bigelow, , 1991but also Landau & Gleitman, 1985, for a contrasting view), evaluating moral transgressions in what another person intends (Markoulis, 1988), and judging what another person might feel from emotionally expressive vocalizations (Blau, 1964;Minter, Hobson & Pring, 1992). The question arises, whether such delays or impairments have an intrinsic relation to other abnormalities that appear to be characteristic of visually impaired children, in particular those in the domains of symbolic play, role play, and aspects of language comprehension and use (Andersen et al, 1984;Fraiberg & Adelson, 1977;Rogers & Puchalski, 1984).…”