Researchers work with mentally disabled children in the United States. Bruce Baker, Clinical Psychologist, Walter E Fernald State School, Waltham, Massachusetts talks about Project 67 in which his team used rewards to bring modifications in the behavior of the mentally disabled children. Several mentally disabled children play with puzzles. A mentally disabled child makes his bed. Some tokens in his hand. A researcher nearby. A researcher with Debra and another girl. A mentally disabled girl in a wheelchair. In a kitchen a girl lays table mats on the table. Mentally disabled people sit in a room with specially designed walls. A mentally disabled boy lifted and put into a special chair. Many mentally disabled people seated in a room. A girl works on a puzzle. An instructor arranges rollers in the hair of a girl in front of a mirror. Debra enters a room. Her instructor in the room. The instructor works with Debra. Cards with dots printed on them and tokens on the table. Debra with another researcher. A woman helps a mentally disabled boy to identify pictures which appear on a screen. A woman teaches a mentally disabled girl to iron. Debra arranges tokens on a sheet. Addition sums appear on a screen. A mentally disabled boy selects the correct answer from the four options given. Debra and other mentally disabled children in a class with a researcher. Debra in front of a computer screen which shows the digit 1. A man sits nearby.
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