S. Baroncohen et F. Goodhart, THE SEEING-LEADS-TO-KNOWING DEFICIT IN AUTISM - THE PRATT-AND-BRYANT PROBE, British journal of developmental psychology, 12, 1994, pp. 397-401
This study retests the findings by Leslie & Firth (1988) and Perner, F
rith, Leslie & Leekam (1989) that children with autism have a specific
difficulty in understanding the principle that 'seeing leads to knowi
ng'. It extends the earlier work by including a control group of subje
cts with mental handicap, and by using a simpler method, derived from
Pratt & Bryant (1990). Despite these modifications, a very similar res
ult was found: while 75 per cent of the subjects with mental handicap
passed this test, only 33 per cent of the subjects with autism did so.
This more stringent retest suggests this result is robust.