“…In line with the inhibitory account, several studies have reported that strong cues that may guide shifts of attention are associated with a reduced display of repetitive behaviour relative to situations in which no such structure is provided (Bartak & Rutter, 1973 ;Dadds et al, 1988 ;Olley, 1987 ;Schopler, Brehm, Kinsbourne, & Reichler, 1971 ;Volkmar, Hoder, & Cohen, 1985). In support of the generativity hypothesis, studies comparing the display of repetitive behaviour across settings consistently report that individuals with autism display the highest rates of repetitive behaviour when high demands are placed on their generative ability, either because they are alone and unoccupied, or because minimal cues are provided to guide behaviour (Charlop et al, 1983 ;Clark & Rutter, 1981 ;Dadds et al, 1988 ;Donnellan et al, 1984 ;Runco et al, 1986).…”